Sergey A. Nizkorodov

Professor of Chemistry, Department of Chemistry, University of California, Irvine

Biography

Sergey A. Nizkorodov is a Professor in the Department of Chemistry at the University of California, Irvine (UCI). He obtained his undergraduate degree in biochemistry from Novosibirsk State University, Russia, in 1993, and his graduate degree in physical chemistry from Basel University, Switzerland, in 1997. Nizkorodov joined UCI in 2002 after his postdoctoral research in chemical kinetics and reaction dynamics at the University of Colorado, Boulder, and atmospheric chemistry at the California Institute of Technology.

Nizkorodov's research focuses primarily on the chemistry of particulate matter, both in the ambient atmosphere and indoor environments, utilizing advanced spectroscopic and mass-spectrometric techniques. He has authored over 100 peer-reviewed articles and has received funding from the National Science Foundation, Department of Energy, and other agencies. His research interests include atmospheric organic aerosols, photochemical processes, and the photolysis of organic compounds in aerosols. Nizkorodov’s contributions to the field have been recognized with numerous awards, including the Fulbright Scholarship, AAAS Fellowship, and the Camille Dreyfus Teacher-Scholar Award.

At UCI, Nizkorodov teaches various chemistry courses, including general, analytical, and atmospheric chemistry. He has mentored over 100 students across different educational levels, from high school to postdoctoral researchers. His service to the profession includes his tenure as President of the American Association for Aerosol Research and active involvement in various service roles at UCI and within the research community. His dedication to education and research excellence is further exemplified by awards such as the UCI Chancellor's Award for Excellence in Fostering Undergraduate Research and the Daniel G. Aldrich, Jr. Distinguished University Service Award.

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Degrees

PhD in Chemistry, University of Basel, 1997
Diploma of Higher Education in Chemistry, Novosibirsk State University, 1993

Distinctions

Aerosol Science and Technology 2022 Outstanding Reviewer, 2022
Elected Fellow of the American Association for Aerosol Research – AAAR, 2022
2022 Dr. De Gallow Professor of the Year, 2022
2021-2022 Daniel G. Aldrich, Jr. Distinguished University Service Award, 2021
2021 UCI School of Physical Sciences Award for Outstanding Contributions to Undergraduate Education, 2021
Fulbright Scholarship, University of Eastern Finland, 2016
Elected Fellow of the American Association for the Advancement of Science – AAAS, 2015
Ascent Award from the American Geophysical Union, 2013
UCI Chancellor's Award for Excellence in Fostering Undergraduate Research, 2012
Camille Dreyfus Teacher-Scholar Award, 2007

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Areas of Expertise

Atmospheric Chemistry
Organic Aerosol Photochemistry
Mass Spectrometry Techniques
Secondary Organic Aerosol
Reactive Oxygen Species
Atmospheric Brown Carbon
Aerosol Viscosity & Phase State
Chemical Kinetics & Dynamics
Indoor Air Quality
Environmental Health Impacts

Recent Publications

Lena Gerritz, Jinlai Wei, Ting Fang, Cynthia Wong, Alexandra L. Klodt, Sergey A. Nizkorodov, Manabu Shiraiwa, “Reactive oxygen species formation and peroxide and carbonyl decomposition in aqueous photolysis of secondary organic aerosols”, Environmental Science & Technology, vol. 58, pp. 4716-4726, 2024.
Katherine S. Hopstock, Véronique Perraud, Avery B. Dalton, Barbara Barletta, Simone Meinardi, Robert M. Weltman, Megan A. Mirkhanian, Krisztina J. Rakosi, Donald R. Blake, Rufus D. Edwards, Sergey A. Nizkorodov, “Chemical analysis of exhaled vape emissions: unraveling the complexities of humectant fragmentation in a human trial study”, Chemical Research in Toxicology, vol. 37, pp. 1000-1010, 2024.
Cynthia Wong, Jett Vuong, Sergey A Nizkorodov, “Biogenic and anthropogenic secondary organic aerosols become fluorescent after highly acidic aging”, Journal of Physical Chemistry A, vol. 128, pp. 7657-7668, 2024.
Avery B. Dalton, Lisa M. Wingen, Sergey A. Nizkorodov, “Isomeric identification of the nitroindole chromophore in indole + NO3 organic aerosol”, ACS Physical Chemistry Au, vol. 4, pp. 568-574, 2024.
Sijia Liu, Tommaso Galeazzo, Richard Valorso, Manabu Shiraiwa, Celia L. Faiola, Sergey A Nizkorodov, “Secondary organic aerosol from OH-initiated oxidation of mixtures of d-limonene and β- myrcene”, Environmental Science & Technology, vol. 58, pp. 13391-13401, 2024.
Cynthia Wong, Jessica E. Pazienza, Scott D. Rychnovsky, Sergey A Nizkorodov, “Formation of chromophores from cis-pinonaldehyde aged in highly acidic conditions”, Journal of the American Chemical Society, vol. 146, pp. 11702-11710, 2024.
Katherine S. Hopstock, Qiaorong Xie, Michael A. Alvarado, Vaios Moschos, Solomon Bililign, Jason D. Surratt, Alexander Laskin, Sergey A. Nizkorodov, “Molecular characterization and photoreactivity of organic aerosols from urban material combustion at the wildland-urban interface”, ACS ES&T Air, 2024.
Lena Gerritz, Véronique Perraud, Kathryn M. Weber, Manabu Shiraiwa, Sergey A Nizkorodov, “Application of ESI-UHPLC-MS/MS to identify condensed-phase free radicals via spin trapping with BMPO”, Journal of Physical Chemistry A, 2024.
Robert M. Weltman, Rufus D. Edwards, Norbert Staimer, Ajay Pillarsetti, Narendra K. Arora, Sergey A Nizkorodov, “Particle bound PAH emissions from high and low temperature combustion of dung, wood and mixed fuels in household stoves in Haryana, India”, Atmospheric Environment X, 2024.
Kristian J. Kiland, Katherine S. Hopstock, Ayomide A. Akande, Kristen N. Johnson, Yixin Li, Fabian Mahrt, Sepehr Nikkho, Barbara J. Finlayson-Pitts, Nadine Borduas-Dedekind, Sergey A. Nizkorodov, Allan K. Bertram, “Boiling of catechol secondary organic aerosol when heated to mild temperatures (36-52 °C) due to carbon dioxide formation and high viscosity”, ACS ES&T Air, vol. 1, pp. 547-558, 2024.
Sergey Nizkorodov, “Light-absorbing products of atmospheric oxidation of indole by hydroxyl radical, nitrate radical and ozone”, 2024.
Sergey Nizkorodov, “Photochemical and dark ageing of organic aerosols”, 2024.
“Condensed-phase photochemical and acid-catalyzed reactions in atmospheric aerosol particles”, 2024. Presented at American Geophysical Union Meeting, Washington, DC, USA, December 9-13, 2024.
“Rates and mechanisms of photochemical reactions in organic aerosol particles”, 2024. Presented at 7th International Workshop on Heterogeneous Kinetics Related to Atmospheric Aerosols, Qingdao, China, October 19-20, 2024.
“Direct and indirect photochemistry of organic aerosols in aqueous solutions”, 2024. Presented at 268th American Chemical Society National Meeting, Denver, CO, USA, August 18-22, 2024.
“Chemical composition and photochemical aging of organic aerosols from burning of biomass and urban materials”, 2024. Presented at Telluride Summer Research Workshop, “Organic Particles in the Atmosphere: Formation, Properties, Processing, and Impact”, Telluride, Colorado, USA, July 29 – August 2, 2024.
“Atmospheric transformations of organic aerosol emitted from burning of biomass and urban materials”, 2024. Presented at Molecular-Level Understanding of Atmospheric Aerosols, Cargèse, Corsica, France, April 1-5, 2024.
“Optical Properties and Atmospheric Transformations of Organic Aerosol Emitted from Burning of Urban Materials”, 2024. Presented at 40th Annual Informal Gathering on Atmospheric Sciences and Photochemistry (IGASP), San Diego, CA, USA, October 4, 2024.
“Optical Properties and Atmospheric Transformations of Organic Aerosol Emitted from Burning of Urban Materials”, 2024. Presented at 26th Gordon Research Conference on Atmospheric Chemistry, Sunday River, Newry, ME, USA, July 28 – August 2, 2019.
Kangwei Li, Yunlong Guo, Sergey A. Nizkorodov, Yinon Rudich, Maria Angelaki, Xinke Wang, Taicheng An, Sebastien Perrier, Christian George, “Spontaneous dark formation of OH radicals at the interface of aqueous atmospheric droplets”, Proceedings of the National Academy of Sciences, vol. 120, pp. e2220228120, 2023.
Ting Fang, Brian C. H. Hwang, Sukriti Kapur, Katherine S. Hopstock, Jinlai Wei, Vy Nguyen, Sergey A. Nizkorodov, Manabu Shiraiwa, “Wildfire particulate matter as a source of environmentally persistent free radicals and reactive oxygen species”, Environmental Science: Atmospheres, vol. 3, pp. 581-594, 2023.
Yuchen Wang, Masayuki Takeuchi, Siyuan Wang, Sergey A. Nizkorodov, Stefan France, Gamze Eris, Nga Lee Ng, “Photolysis of gas-phase atmospherically relevant monoterpene-derived organic nitrates”, Journal of Physical Chemistry A, vol. 127, pp. 987-999, 2023.
Avery B. Dalton, Scott M. Le, Natalia V. Karimova, R. Benny Gerber, Sergey A. Nizkorodov, “Influence of solvent on electronic structure and the photochemistry of nitrophenols”, Environmental Science: Atmospheres, vol. 3, pp. 257-267, 2023.
Lena Gerritz, Meredith Schervish, Pascale S.J. Lakey, Tim Oeji, Jinlai Wei, Sergey A. Nizkorodov, Manabu Shiraiwa, “Photoenhanced radical formation in aqueous mixtures of levoglucosan and benzoquinone: implications to photochemical aging of biomass burning organic aerosols”, Journal of Physical Chemistry A, vol. 127, pp. 5209-5221, 2023.
Katherine S. Hopstock, Alexandra L. Klodt, Qiaorong Xie, Michael A. Alvarado, Alexander Laskin, Sergey A. Nizkorodov, “Photolytic aging of organic aerosol from pyrolyzed urban materials”, Environmental Science: Atmospheres, vol. 3, pp. 1272-1285, 2023.
Alexandra L. Klodt, Paige K. Aiona, Amanda C. MacMillan, Hyun Ji (Julie) Lee, Xiaolu Zhang, Taylor Helgestad, Gordon A. Novak, Peng Lin, Julia Laskin, Alexander Laskin, Timothy H. Bertram, Christopher D. Cappa, Sergey A. Nizkorodov, “Effect of relative humidity, NOx, and ammonia on physical properties of naphthalene secondary organic aerosol”, Environmental Science: Atmospheres, vol. 3, pp. 991-1007, 2023.
Vahe J. Baboomian, Quanfu He, Julia Montoya-Aguilera, Nujhat N. Ali, Lauren T. Fleming, Peng Lin, Alexander Laskin, Julia Laskin, Yinon Rudich, Sergey A. Nizkorodov, “Light absorption and scattering properties of indole secondary organic aerosol prepared under various oxidant and relative humidity conditions”, Aerosol Science and Technology, vol. 57, pp. 532-545, 2023.
Katherine S. Hopstock, Brooke P. Carpenter, Joseph P. Patterson, Hind A. Al-Abadleh, Sergey A. Nizkorodov, “Formation of insoluble brown carbon through iron-catalyzed reaction of biomass burning organics”, Environmental Science: Atmospheres, vol. 3, pp. 207-220, 2023.
Tran B. Nguyen, Kelvin H. Bates, Reina S. Buenconsejo, Sophia M. Charan, Eric E. Cavanna, David R. Cocker III, Douglas A. Day, Marla P. DeVault, Neil M. Donahue, Zachary Finewax, Luke F. Habib, Anne V. Handschy, Lea Hildebrandt Ruiz, Chung-Yi S. Hou, Jose L. Jimenez, Taekyu Joo, Alexandra L. Klodt, Weimeng Kong, Chen Le, Catherine G. Masoud, Matthew S. Mayernik, Nga L. Ng, Eric J. Nienhouse, Sergey A. Nizkorodov, John J. Orlando, Jeroen J. Post, Patrick O. Sturm, Bridget L. Thrasher, Geoffrey S. Tyndall, John H. Seinfeld, Steven J. Worley, Xuan Zhang, Paul J. Ziemann, “Overview of ICARUS – a curated, open access, online repository for atmospheric simulation chamber data”, ACS Earth and Space Chemistry, vol. 7, pp. 1235-1246, 2023.
Natalie R. Smith, Giuseppe V. Crescenzo, Allan K. Bertram, Sergey A. Nizkorodov, Celia L. Faiola, “Insect infestation increases viscosity of biogenic secondary organic aerosol”, ACS Earth and Space Chemistry, vol. 7, pp. 1060-1071, 2023.
Kameryn Denaro, Sergey A. Nizkorodov, Amanda J. Holton, “The impact of modality choice on final exam success and retention in a concurrent preparatory chemistry course”, Journal of Chemical Education, vol. 100, pp. 4585-4596, 2023.
Avery B. Dalton, Dmitry A. Fishman, Sergey A. Nizkorodov, “Ultrafast excited-state proton transfer in 4-nitrocatechol: implications for the photochemistry of nitrophenols”, Journal of Physical Chemistry A, vol. 127, pp. 8307-8315, 2023.
Sergey Nizkorodov, “Photochemical and dark ageing of organic aerosols”, 2023.
“Atmospheric transformations of organic aerosol emitted from burning of biomass and urban materials”, 2023. Presented at 266th American Chemical Society National Meeting, San Francisco, CA, USA, August 13-17, 2023.
“Chemical composition, absorption coefficients and atmospheric transformations of organic aerosol emitted from burning of biomass and urban materials”, 2023. Presented at Canadian Chemical Society Meeting, Vancouver, Canada, June 2-6, 2023.
“Condensed-phase photochemical and dark aging processes in secondary organic aerosol”, 2023. Presented at 265th American Chemical Society National Meeting, Indianapolis, IN, USA, March 26-30, 2023.
Sergey Nizkorodov, “He_n (v = 1) (1 < n ≤ 6) clusters”, Journal of Chemical Physics, vol. 154, no. 3, pp. 034306, 2023.
Fabian Mahrt, Long Peng, Julia Zaks, Yuanzhou Huang, Paul E. Ohno, Natalie R. Smith, Florence K. A. Gregson, Yiming Qin, Celia L. Faiola, Scot T. Martin, Sergey A. Nizkorodov, Markus Ammann, Allan K. Bertram, “Not all types of secondary organic aerosol mix: two phases observed when mixing different secondary organic aerosol types”, Atmospheric Chemistry and Physics, vol. 22, pp. 13783-13796, 2022.
Vahe J. Baboomian, Giuseppe V. Crescenzo, Yuanzhou Huang, Fabian Mahrt, Manabu Shiraiwa, Allan K. Bertram, Sergey A. Nizkorodov, “Sunlight can convert atmospheric aerosols into a glassy solid state and modify their environmental impacts”, Proceedings of the National Academy of Sciences, vol. 119, pp. e2208121119, 2022.
Alexandra L. Klodt, Marley Adamek, Monica Dibley, Sergey A. Nizkorodov, Rachel E. O’Brien, “Effects of the sample matrix on the photobleaching and photodegradation of toluene-derived secondary organic aerosol compounds”, Atmospheric Chemistry and Physics, vol. 22, pp. 10155-10171, 2022.
Kasey C. Edwards, Alexandra L. Klodt, Tommaso Galeazzo, Meredith Schervish, Jinlai Wei, Ting Fang, Neil M. Donahue, Bernard Aumont, Sergey A. Nizkorodov, Manabu Shiraiwa, “Effects of nitrogen oxides on the production of reactive oxygen species and environmentally persistent free radicals from ɑ-pinene and naphthalene secondary organic aerosols”, Journal of Physical Chemistry A, vol. 126, pp. 7361-7372, 2022.
Cynthia Wong, Sijia Liu, Sergey A. Nizkorodov, “Highly acidic conditions drastically alter the chemical composition and absorption coefficient of α-pinene secondary organic aerosol”, ACS Earth and Space Chemistry, vol. 6, pp. 2983-2994, 2022.
Shupeng Zhu, Kai Wu, Sergey A. Nizkorodov, Donald Dabdub, “Modeling reactive ammonia uptake by secondary organic aerosol in a changing climate: a WRF-CMAQ evaluation”, Frontiers in Environmental Science, vol. 10, pp. 867908, 2022.
Kristian J. Kiland, Kevin L. Marroquin, Natalie R. Smith, Shaun Xu, Sergey A. Nizkorodov, Allan K. Bertram, “A new hot-stage microscopy technique for measuring temperature-dependent viscosities of aerosol particles and its application to farnesene secondary organic aerosol”, Atmospheric Measurement Techniques, vol. 15, pp. 5545–5561, 2022.
“Condensed-phase organic photochemistry in atmospheric particles: effect on chemical composition and properties”, 2022. Presented at Telluride Summer Research Workshop, “Organic Particles in the Atmosphere: Formation, Properties, Processing, and Impact”, Telluride, Colorado, USA, July 18-22, 2022.
“Effect of condensed-phase photochemistry on the viscosity of atmospheric secondary organic aerosol particles”, 2022. Presented at 40 rd Annual AAAR Conference, Raleigh, NC, USA, October 3-7, 2022.
“Condensed-phase photochemistry greatly increases the viscosity of atmospheric secondary organic aerosol particles”, 2022. Presented at 11 th International Aerosol Conference, Athens, Greece, September 4-9, 2022.
Jinlai Wei, Ting Fang, Cynthia Wong, Pascale S. J. Lakey, Sergey A. Nizkorodov, Manabu Shiraiwa, “Superoxide formation from aqueous reactions of biogenic secondary organic aerosols”, Environmental Science & Technology, vol. 55, pp. 260-270, 2021.
Adrian M. Maclean, Natalie R. Smith, Ying Li, Yuanzhou Huang, Anusha P. S. Hettiyadura, Giuseppe V. Crescenzo, Manabu Shiraiwa, Alexander Laskin, Sergey A. Nizkorodov, Allan K. Bertram, “Humidity- dependent viscosity of secondary organic aerosol from ozonolysis of β-caryophyllene: Measurements, predictions, and implications”, ACS Earth and Space Chemistry, vol. 5, pp. 305-318, 2021.
Natalie R. Smith, Giuseppe V. Crescenzo, Yuanzhou Huang, Anusha P. S. Hettiyadura, Kyla Siemens, Ying Li, Celia L. Faiola, Alexander Laskin, Manabu Shiraiwa, Allan K. Bertram, Sergey A. Nizkorodov, “Viscosity and liquid-liquid phase separation in healthy and stressed plant SOA”, Environmental Science: Atmospheres, vol. 1, pp. 140-153, 2021.
Avery B. Dalton, Sergey A. Nizkorodov, “Photochemical degradation of 4-nitrocatechol and 2,4- dinitrophenol in a sugar-glass secondary organic aerosol surrogate”, Environmental Science & Technology, vol. 55, pp. 14586-14594, 2021.
Henry Chin, Katherine S. Hopstock, Lauren T. Fleming, Sergey A. Nizkorodov, Hind A. Al-Abadleh, “Effect of aromatic ring substituents on the ability of catechol to produce brown carbon in iron(III)-catalyzed reactions”, Environmental Science: Atmospheres, vol. 1, pp. 64-78, 2021.
Adrian M. Maclean, Ying Li, Giuseppe V. Crescenzo, Natalie R. Smith, Vlassis A. Karydis, Alexandra P. Tsimpidi, Christopher L. Butenhoff, Celia L. Faiola, Jos Lelieveld, Sergey A. Nizkorodov, Manabu Shiraiwa, Allan K. Bertram, “Global distribution of the phase state and mixing times within secondary organic aerosol particles in the troposphere based on room-temperature viscosity measurements”, ACS Earth and Space Chemistry, vol. 5, pp. 3458-3473, 2021.
Matthieu Riva, Jianfeng Sun, V. Faye McNeill, Charline Ragon, Sebastien Perrier, Yinon Rudich, Sergey A. Nizkorodov, Jianmin Chen, Frederic Caupin, Thorsten Hoffmann, Christian George, “High pressure inside nanometer-sized particles influences the rate and products of chemical reactions”, Environmental Science & Technology, vol. 55, pp. 7786-7793, 2021.
Cynthia Wong, Daniel Vite, Sergey A. Nizkorodov, “Stability of α-pinene and d-limonene ozonolysis secondary organic aerosol compounds towards hydrolysis and hydration”, ACS Earth and Space Chemistry, vol. 5, pp. 2555-2564, 2021.
Xinke Wang, Rachel Gemayel, Vahe J. Baboomian, Kangwei Li, Antoinette Boreave, Clement Dubois, Sophie Tomaz, Sebastien Perrier, Sergey A. Nizkorodov, Christian George, “Naphthalene-derived secondary organic aerosols interfacial photosensitizing properties”, Geophysical Research Letters, vol. 48, pp. e2021GL093465, 2021.
Robert M. Weltman, Rufus D. Edwards, Lauren T. Fleming, Ankit Yadav, Cheryl L. Weyant, Brigitte Rooney, John H. Seinfeld, Narendra K. Arora, Tami C. Bond, Sergey A. Nizkorodov, Kirk R. Smith, “Emissions measurements from household solid fuel use in Haryana, India: Implications for climate and health co-benefits”, Environmental Science & Technology, vol. 55, pp. 3201-3209, 2021.
Hind Al-Abadleh, Sergey A. Nizkorodov, “Open questions on transition metals driving secondary thermal processes in atmospheric aerosols”, Communications Chemistry, vol. 4, pp. 176, 2021.
Rachel Gemayel, Corinne Emmelin, Sébastien Perrier, Sophie Tomaz, Vahe J. Baboomian, Dmitry A. Fishman, Sergey A. Nizkorodov, Stephane Dumas, Christian George, “Quenching of ketone triplet excited states by atmospheric halides”, Environmental Science: Atmospheres, vol. 1, pp. 31-44, 2021.
Natalie R. Smith, Julia Montoya-Aguilera, Donald Dabdub, Sergey A. Nizkorodov, “Effect of humidity on the reactive uptake of ammonia and di-methylamine by nitrogen-containing secondary organic aerosol”, Atmosphere, vol. 12, pp. 1502, 2021.
Alexandra L. Klodt, Kimberly Zhang, Michael W. Olsen, Jorge L. Fernandez, Filipp Furche, Sergey A. Nizkorodov, “Effect of ammonium salts on the decarboxylation of oxaloacetic acid in atmospheric particles”, ACS Earth and Space Chemistry, vol. 5, pp. 931-940, 2021.
Lauren T. Fleming, Peng Lin, James M. Roberts, Vanessa Selimovic, Robert Yokelson, Julia Laskin, Alexander Laskin, Sergey A. Nizkorodov, “Molecular composition and photochemical lifetimes of brown carbon chromophores in biomass burning organic aerosol”, Atmospheric Chemistry and Physics, vol. 20, pp. 1105-1129, 2020.
Xinke Wang, Rachel Gemayel, Nathalie Hayeck, Sebastien Perrier, Nicolas Charbonnel, Caihong Xu, Hui Chen, Chao Zhu, Liwu Zhang, Lin Wang, Sergey A. Nizkorodov, Xinming Wang, Zhe Wang, Tao Wang, Abdelwahid Mellouki, Matthieu Riva, Jianmin Chen, Christian George, “Atmospheric photosensitization: a new pathway for sulfate formation”, Environmental Science & Technology, vol. 54, pp. 3114-3120, 2020.
Arttu Ylisirniö, Angela Buchholz, Claudia Mohr, Zijun Li, Luis Barreira, Andrew Lambe, Celia Faiola, Eetu Kari, Taina Yli-Juuti, Sergey A. Nizkorodov, Douglas R. Worsnop, Annele Virtanen, Siegfried Schobesberger, “Composition and volatility of secondary organic aerosol (SOA) formed from oxidation of real tree emissions compared to simplified volatile organic compound (VOC) systems”, Atmospheric Chemistry and Physics, vol. 20, pp. 5629-5644, 2020.
Nicole Link, Nicole Rzhemovskiy, Jingwei Yun, Lauren T. Fleming, Sergey A. Nizkorodov, Allan K. Bertram, Hind A. Al- Abadleh, “Dust-catalyzed oxidative polymerization of catechol and its impacts on ice nucleation efficiency and optical properties”, ACS Earth and Space Chemistry, vol. 4, pp. 1127-1139, 2020.
Vahe J. Baboomian, Yiran Gu, Sergey A. Nizkorodov, “Photodegradation of secondary organic aerosols by long-term exposure to solar actinic radiation”, ACS Earth and Space Chemistry, vol. 4, pp. 1078-1089, 2020.
Nadine Borduas-Dedekind, Sergey A. Nizkorodov, Kristopher McNeill, “UVB-irradiated laboratory- generated secondary organic aerosol extracts have increased cloud condensation nuclei abilities: Comparison with dissolved organic matter and implications for the photomineralization mechanism”, CHIMIA International Journal for Chemistry, vol. 74, pp. 142-148, 2020.
Alessandro Manfrin, Sergey A. Nizkorodov, Kurtis T. Malecha, Gordon J. Getzinger, Kristopher McNeill, Nadine Borduas-Dedekind, “Reactive oxygen species production from secondary organic aerosols: The importance of singlet oxygen”, Environmental Science & Technology, vol. 53, pp. 8553-8562, 2019.
Lauren T. Fleming, Nujhat N. Ali, Sandra L. Blair, Marie Roveretto, Christian George, Sergey A. Nizkorodov, “Formation of light-absorbing organosulfates during evaporation of secondary organic material extracts in the presence of sulfuric acid”, ACS Earth and Space Chemistry, vol. 3, pp. 947-957, 2019.
Brigitte Rooney, Ran Zhao, Yuan Wang, Kelvin H. Bates, Ajay Pillarisetti, Sumit Sharma, Seema Kundu, Tami C. Bond, Nicholas L. Lam, Bora Ozaltun, Li Xu, Varun Goel, Lauren T. Fleming, Robert Weltman, Simone Meinardi, Donald R. Blake, Sergey A. Nizkorodov, Rufus D. Edwards, Ankit Yadav, Narendra L. Arora, Kirk R. Smith, John H. Seinfeld, “Impacts of household sources on air pollution at village and regional scales in India”, Atmospheric Chemistry and Physics, vol. 19, pp. 7719-7742, 2019.
Mijung Song, Adrian M. Maclean, Yuanzhou Huang, Natalie R. Smith, Sandra L. Blair, Julia Laskin, Alexander Laskin, Wing-Sy Wong DeRieux, Ying Li, Manabu Shiraiwa, Sergey A. Nizkorodov, Allan K. Bertram, “Liquid-liquid phase separation and viscosity within secondary organic aerosol generated from diesel fuel vapors”, Atmospheric Chemistry and Physics, vol. 19, pp. 12515-12529, 2019.
Zhijian Li, Sergey A. Nizkorodov, Hong Chen, Xiaohui Lu, Xin Yang, Jianmin Chen, “Nitrogen-containing secondary organic aerosols formation by acrolein reaction with ammonia/ammonium”, Atmospheric Chemistry and Physics, vol. 19, pp. 1343-1356, 2019.
Dagny A. Ullmann, Mallory L. Hinks, Adrian Maclean, Christopher Butenhoff, James Grayson, Kelley Barsanti, Jose L. Jimenez, Sergey A. Nizkorodov, Saeid Kamal, Allan K. Bertram, “Viscosities, diffusion coefficients, and mixing times of intrinsic fluorescent organic molecules in brown limonene secondary organic aerosol and tests of the Stokes-Einstein equation”, Atmospheric Chemistry and Physics, vol. 19, pp. 1491-1503, 2019.
Alexandra L. Klodt, Dian E. Romonosky, Peng Lin, Julia Laskin, Alexander Laskin, Sergey A. Nizkorodov, “Aqueous photochemistry of secondary organic aerosol of α-pinene and α-humulene in the presence of hydrogen peroxide or inorganic salts”, ACS Earth and Space Chemistry, vol. 3, pp. 2736-2746, 2019.
Aseel Al Nimer, Laura Rocha, Mohammad A. Rahman, Sergey A. Nizkorodov, Hind A. Al-Abadleh, “Effect of oxalate and sulfate on iron-catalyzed secondary brown carbon formation”, Environmental Science & Technology, vol. 53, pp. 6708-6717, 2019.
Angela Buchholz, Andrew T. Lambe, Arttu Ylisirniö, Zijun Li, Olli-Pekka Tikkanen, Celia Faiola, Eetu Kari, Liqing Hao, Olli Luoma, Wei Huang, Claudia Mohr, Douglas R. Worsnop, Sergey A. Nizkorodov, Taina Yli-Juuti, Siegfried Schobesberger, Annele Virtanen, “Insights into the O:C ratio dependent mechanisms controlling the evaporation of α-pinene secondary organic aerosol particles”, Atmospheric Chemistry and Physics, vol. 19, pp. 4061-4073, 2019.
Véronique Perraud, Michael J. Lawler, Kurtis T. Malecha, Rebecca M. Johnson, David Herman, Norbert Staimer, Michael T. Kleinman, Sergey A. Nizkorodov, James N. Smith, “Chemical characterization of nanoparticles and volatiles present in mainstream hookah smoke”, Aerosol Science and Technology, vol. 53, pp. 1023-1039, 2019.
Sergey Nizkorodov, “The Fourth Sino-European School on Atmospheric Chemistry”, 2019. Presented at The Fourth Sino-European School on Atmospheric Chemistry, Shanghai, China, November 2019.
“Reactive uptake of amines and ammonia by secondary organic aerosols”, 2019. Presented at 258th American Chemical Society National Meeting, San Diego, CA, USA, August 25-29, 2019.
“Condensed-phase photochemical processes in atmospheric particulate matter”, 2019. Presented at 258th American Chemical Society National Meeting, San Diego, CA, USA, August 25-29, 2019.
“Organic photochemistry in atmospheric particulate matter”, 2019. Presented at The 29th International Conference on Photochemistry, Boulder, CO, USA, July 21-26, 2019.
“Condensed-phase photochemistry changes chemical composition and optical properties of aerosol particles”, 2019. Presented at The 14th iCACGP Quadrennial Symposium and the 15th IGAC Science Conference, Takamatsu, Japan, September 25 – 29, 2018.
Wing-Sy Wong DeRieux, Ying Li, Peng Lin, Julia Laskin, Alexander Laskin, Allan K. Bertram, Sergey A. Nizkorodov, Manabu Shiraiwa, “Predicting the glass transition temperature and viscosity of secondary organic material using molecular composition”, Atmospheric Chemistry and Physics, vol. 18, pp. 6331-6351, 2018.
Julia Laskin, Alexander Laskin, Sergey A. Nizkorodov, “Mass spectrometry analysis in atmospheric chemistry”, Analytical Chemistry, vol. 90, pp. 166-189, 2018.
Mallory L. Hinks, Julia Montoya-Aguilera, Lucas Ellison, Peng Lin, Alexander Laskin, Julia Laskin, Manabu Shiraiwa, Donald Dabdub, Sergey A. Nizkorodov, “Effect of relative humidity on the composition of secondary organic aerosol from the oxidation of toluene”, Atmospheric Chemistry and Physics, vol. 18, pp. 1643-1652, 2018.
Lauren T. Fleming, Peng Lin, Alexander Laskin, Julia Laskin, Robert Weltman, Rufus D. Edwards, Narendra K. Arora, Ankit Yadav, Simone Meinardi, Donald R. Blake, Ajay Pillarisetti, Kirk R. Smith, Sergey A. Nizkorodov, “Molecular composition of particulate matter emissions from dung and brushwood burning household cookstoves in Haryana, India”, Atmospheric Chemistry and Physics, vol. 18, pp. 2461-2480, 2018.
Paige K. Aiona, Jenna L. Luek, Stephen A. Timko, Leanne C. Powers, Michael Gonsior, Sergey A. Nizkorodov, “Effect of photolysis on absorption and fluorescence spectra of light-absorbing secondary organic aerosols”, ACS Earth and Space Chemistry, vol. 2, pp. 235-245, 2018.
Lauren T. Fleming, Robert Weltman, Ankit Yadav, Rufus D. Edwards, Narendra K. Arora, Ajay Pillarisetti, Simone Meinardi, Kirk R. Smith, Donald R. Blake, Sergey A. Nizkorodov, “Emissions from village cookstoves in Haryana, India and their potential impacts on air quality”, Atmospheric Chemistry and Physics, vol. 18, pp. 15169-15182, 2018.
Kurtis T. Malecha, Zicheng Cai, Sergey A. Nizkorodov, “Photodegradation of secondary organic aerosol material quantified with a quartz crystal microbalance”, Environmental Science & Technology Letters, vol. 5, pp. 366-371, 2018.
Shupeng Zhu, Jeremy R. Horne, Julia Montoya-Aguilera, Mallory L. Hinks, Sergey A. Nizkorodov, Donald Dabdub, “Modeling reactive ammonia uptake by secondary organic aerosol in CMAQ: application to the continental US”, Atmospheric Chemistry and Physics, vol. 18, pp. 3641-3657, 2018.
Jeremy R. Horne, Shupeng Zhu, Julia Montoya-Aguilera, Mallory L. Hinks, Lisa M. Wingen, Sergey A. Nizkorodov, Donald Dabdub, “Reactive uptake of ammonia by secondary organic aerosols: Implications for air quality”, Atmospheric Environment, vol. 189, pp. 1-8, 2018.
Alexander Laskin, Peng Lin, Julia Laskin, Lauren T. Fleming, Sergey A. Nizkorodov, “Molecular characterization of atmospheric brown carbon”, ACS Symposium Series, ACS, vol. 1299, pp. 261-274, 2018.
Pablo Corral Arroyo, Kurtis T. Malecha, Markus Ammann, Sergey A. Nizkorodov, “Influence of humidity and iron (III) on photodegradation of atmospheric secondary organic aerosol particles”, Physical Chemistry Chemical Physics, vol. 20, pp. 30021-30031, 2018.
Julia Montoya-Aguilera, Mallory L. Hinks, Paige K. Aiona, Lisa M. Wingen, Jeremy R. Horne, Shupeng Zhu, Donald Dabdub, Alexander Laskin, Julia Laskin, Peng Lin, Sergey A. Nizkorodov, “Reactive uptake of ammonia by biogenic and anthropogenic organic aerosols”, ACS Symposium Series, ACS, vol. 1299, pp. 127-147, 2018.
Daniel P. Veghte, Swarup China, Johannes Weis, Peng Lin, Mallory L. Hinks, Libor Kovarik, Sergey A. Nizkorodov, Mary K. Gilles, Alexander Laskin, “Heating-induced transformations of atmospheric particles: environmental transmission electron microscopy study”, Analytical Chemistry, vol. 90, pp. 9761-9768, 2018.
Dorit Shemesh, Ronnie Salomon, Stephanie Hyejin Kim, Geoffrey S. Tyndall, Sergey A. Nizkorodov, R. Benny Gerber, “Adjacent keto and enol groups in photochemistry of a cyclic molecule: Products, mechanisms and dynamics”, Chemical Physics, vol. 515, pp. 177-186, 2018.
Sherri W. Hunt, Alexander Laskin, Sergey A. Nizkorodov, “Editors’ Perspective on Multiphase Chemistry in the Atmosphere”, ACS Symposium Series, ACS, vol. 1299, pp. 1-6, 2018.
Hunt S.W., Laskin A., Nizkorodov S.A., “Preface”, ACS Symposium Series, vol. 1299, pp. xi-xii, 2018.
“Rates of photodegradation of organic aerosol particle”, 2018. Presented at 4th International Workshop on Heterogeneous Kinetics Related to Atmospheric Aerosols, Tsukuba, Japan, September 24, 2018.
“Role of photochemistry in controlling composition of organic aerosols”, 2018. Presented at Tsukuba Global Science Week 2018, The Mitsubishi UFJ Environment Foundation Lectures, “Air Pollution and its Biological Effects”, Tsukuba, Japan, September 22, 2018.
“Condensed-phase photochemical processes in organic particles”, 2018. Presented at Telluride Summer Research Workshop, “Organic Particles in the Atmosphere: Formation, Properties, Processing, and Impact”, Telluride, Colorado, USA, July 23-27, 2018.
“Effect of condensed-phase photochemistry on the mass, composition, and properties of organic aerosols”, 2018. Presented at Gordon Research Conference on Atmospheric Chemistry, Sunday River, Newry, ME, USA, July 30 – August 4, 2017.
James B. Burkholder, Jonathan P.D. Abbatt, Ian Barnes, James M. Roberts, Megan L. Melamed, Markus Ammann, Allan L. Bertram, Christopher D. Cappa, Annmarie G. Carlton, Lucy J. Carpenter, John N. Crowley, Yael Dubowski, Christian George, Dwayne E. Heard, Hartmut Herrmann, Frank N. Keutsch, Jesse H. Kroll, V. Faye McNeill, Nga Lee Ng, Sergey A. Nizkorodov, John J. Orlando, Carl J. Percival, Bénédicte Picquet-Varrault, Yinon Rudich, Paul W. Seakins, Jason D. Surratt, Hiroshi Tanimoto, Joel A. Thornton, Zhu Tong, Geoffrey S. Tyndall, Andreas Wahner, Charles J. Weschler, Kevin R. Wilson, Paul J. Ziemann, “The essential role for laboratory studies in atmospheric chemistry”, Environmental Science & Technology, vol. 51, pp. 2519-2528, 2017.
Sandra L. Blair, Amanda C. MacMillan, Greg T. Drozd, Allen H. Goldstein, Rosalie Chu, Ljiljana Pasa-Tolic, Jared Shaw, Nicola Tolic, Peng Lin, Julia Laskin, Alexander Laskin, Sergey A. Nizkorodov, “Molecular characterization of organosulfur compounds in biodiesel and diesel fuel secondary organic aerosol”, Environmental Science & Technology, vol. 51, pp. 119-127, 2017.
Paige K. Aiona, Hyun Ji (Julie) Lee, Renee Leslie, Peng Lin, Alexander Laskin, Julia Laskin, Sergey A. Nizkorodov, “Photochemistry of products of the aqueous reaction of methylglyoxal with ammonium sulfate”, ACS Earth and Space Chemistry, vol. 1, pp. 522-532, 2017.
Dian E. Romonosky, Ying Li, Manabu Shiraiwa, Alexander Laskin, Julia Laskin, Sergey A. Nizkorodov, “Aqueous photochemistry of secondary organic aerosol of α-pinene and α-humulene oxidized with ozone, hydroxyl radical, and nitrate radical”, Journal of Physical Chemistry A, vol. 121, pp. 1298-1309, 2017.
Jingyan Li, Tingting Xu, Xiaohui Lu, Hong Chen, Sergey A. Nizkorodov, Jianmin Chen, Xin Yang, Zhaoyu Mo, Zhiming Chen, Huilin Liu, Jingying Mao, Guiyun Liang, “Online single particle measurement of fireworks pollution during Chinese New Year in Nanning”, J. Environ. Sci., vol. 53, pp. 184-195, 2017.
Jarmo K. Holopainen, Mina Kivimäenpää, Sergey A. Nizkorodov, “Plant-derived secondary organic material in the air and ecosystems”, Trends in Plant Science, vol. 22, pp. 744-753, 2017.
Julia Montoya-Aguilera, Jeremy R. Horne, Mallory L. Hinks, Lauren T. Fleming, Véronique Perraud, Peng Lin, Alexander Laskin, Julia Laskin, Donald Dabdub, Sergey A. Nizkorodov, “Secondary organic aerosol from atmospheric photooxidation of indole”, Atmospheric Chemistry and Physics, vol. 17, pp. 11605-11621, 2017.
Ashley Tran, Geoffrey Williams, Shagufta Younus, Nujhat N. Ali, Sandra L. Blair, Sergey A. Nizkorodov, Hind A. Al-Abadleh, “Efficient formation of light-absorbing polymeric nanoparticles from the reaction of soluble Fe(III) with C4 and C6 dicarboxylic acids”, Environmental Science & Technology, vol. 51, pp. 9700-9708, 2017.
Paige K. Aiona, Hyun Ji (Julie) Lee, Peng Lin, Forrest Heller, Alexander Laskin, Julia Laskin, Sergey A. Nizkorodov, “A role for 2-methyl pyrrole in the browning of 4-oxopentanal and limonene secondary organic aerosol”, Environmental Science & Technology, vol. 51, pp. 11048-11056, 2017.
Kurtis T. Malecha, Sergey A. Nizkorodov, “Feasibility of photosensitized reactions with secondary organic aerosol particles in the presence of volatile organic compounds”, Journal of Physical Chemistry A, vol. 121, pp. 4961-4967, 2017.
Sergey Nizkorodov, “The Third Sino-European School on Atmospheric Chemistry”, 2017. Presented at The Third Sino-European School on Atmospheric Chemistry, Shanghai, China, November 2017.
“Effect of aerosol water on chemical composition and aging of organic aerosols”, 2017. Presented at 36th Annual AAAR Conference, Raleigh, North Carolina, USA, October 16-20, 2017.
“Reactive uptake of ammonia by biogenic and anthropogenic organic aerosols”, 2017. Presented at 254 th American Chemical Society National Meeting, Washington, DC, USA, August 16-20, 2017.
“Organic photochemistry in atmospheric particulate matter”, 2017. Presented at 253 rd American Chemical Society National Meeting, San Francisco, CA, USA, April 2-6, 2017.
“Climate-relevant compounds produced from burning forest fire fuels in conjunction with the FIREX campaign”, 2017. Presented at 35th Annual AAAR Conference, Portland, OR, USA, October 17-21, 2016.
Xianda Gong, Ci Zhang, Hong Chen, Sergey A. Nizkorodov, Jianmin Chen, Xin Yang, “Size distribution and mixing state of black carbon particles during a heavy air pollution episode in Shanghai”, Atmospheric Chemistry and Physics, vol. 16, pp. 5399-5411, 2016.
Mallory L. Hinks, Monica V. Brady, Hanna Lignell, Mijung Song, James W. Grayson, Allan K. Bertram, Peng Lin, Alexander Laskin, Julia Laskin, Sergey A. Nizkorodov, “Effect of viscosity on photodegradation rates in complex secondary organic aerosol materials”, Physical Chemistry Chemical Physics, vol. 18, pp. 8785-8793, 2016.
Kurtis T. Malecha, Sergey A. Nizkorodov, “Photodegradation of secondary organic aerosol particles as a source of small, oxygenated volatile organic compounds”, Environmental Science & Technology, vol. 50, pp. 9990-9997, 2016.
Dian E. Romonosky, Nujhat N. Ali, Mariyah N. Saiduddin, Michael Wu, Hyun Ji (Julie) Lee, Paige K. Aiona, Sergey A. Nizkorodov, “Effective absorption cross sections and photolysis rates of anthropogenic and biogenic secondary organic aerosols”, Atmos. Environ., vol. 130, pp. 172-179, 2016.
Dorit Shemesh, Sergey A. Nizkorodov, R. Benny Gerber, “Photochemical reactions of cyclohexanone: mechanisms and dynamics”, Journal of Physical Chemistry A, vol. 120, pp. 7112-7120, 2016.
Sergey Nizkorodov, Marie Tysman, “American Voices Seminar”, 2016. Presented at American Voices Seminar, Turku, Finland, October 7-8, 2016.
“Towards molecular level modeling of indoor air chemistry”, 2016. Presented at Indoor air chemistry, Washington, DC, USA, December 7-8, 2016.
“Photochemistry of Organic Aerosols”, 2016. Presented at John P. Maier´s Retirement Symposium, University of Basel, Basel, Switzerland, September 3-4, 2016.
“Effects of biogenic-anthropogenic interactions on the physical and chemical properties of atmospheric organic aerosols”, 2016. Presented at 21T Ultra-High Resolution Mass Spectrometer Dedication Event, Pacific Northwest National Laboratory, Richland, WA, USA, April 14, 2016.
“Condensed-phase photochemical reactions in atmospheric organic aerosols”, 2016. Presented at 251st American Chemical Society National Meeting, San Diego, CA, USA, March 13-17, 2016.
“Molecular Composition of Biomass Burning Aerosol from Household Cookstoves in Rural Haryana, India”, 2016. Presented at Gordon Research Conference on Atmospheric Chemistry, West Dover, VT, USA, July 28 – August 2, 2013.
Peng Lin, Sergey A. Nizkorodov, Julia Laskin, Alexander Laskin, “Revealing brown carbon chromophores produced in reactions of methylglyoxal with ammonium sulfate”, Environmental Science & Technology, vol. 49, pp. 14257-14266, 2015.
Samantha Slikboer, Lindsay Grandy, Sandra L. Blair, Sergey A. Nizkorodov, Richard W. Smith, Hind A. Al-Abadleh, “Formation of light absorbing soluble secondary organics and insoluble polymeric particles from the dark reaction of catechol and guaiacol with Fe(III)”, Environmental Science & Technology, vol. 49, pp. 7793-7801, 2015.
Dian E. Romonosky, Alexander Laskin, Julia Laskin, Sergey A. Nizkorodov, “High-resolution mass spectrometry and molecular characterization of aqueous photochemistry products of common types of secondary organic aerosols”, Journal of Physical Chemistry A, vol. 119, pp. 2594-2606, 2015.
Sandra L. Blair, Scott A. Epstein, Sergey A. Nizkorodov, Norbert Staimer, “A real-time fast-flow tube study of VOC and particulate emissions from electronic, potentially reduced-harm, conventional, and reference cigarettes”, Aerosol Science and Technology, vol. 49, pp. 816-827, 2015.
David R. Fooshee, Paige K. Aiona, Alexander Laskin, Julia Laskin, Sergey A. Nizkorodov, Pierre Baldi, “Atmospheric oxidation of squalene: molecular study using COBRA modeling and high-resolution mass spectrometry”, Environmental Science & Technology, vol. 49, pp. 13304-13313, 2015.
Mona Shrestha, Yue Zhang, Mary A. Upshur, Pengfei Liu, Sandra L. Blair, Hong-fei Wang, Sergey A. Nizkorodov, Regan J. Thomson, Scot T. Martin, Franz M. Geiger, “On surface order and disorder of α- pinene-derived secondary organic material”, Journal of Physical Chemistry A, vol. 119, pp. 4609-4617, 2015.
Dian E. Romonosky, Lucas Q. Nguyen, Dorit Shemesh, Tran B. Nguyen, Scott A. Epstein, David B.C. Martin, Christopher D. Vanderwal, R. Benny Gerber, Sergey A. Nizkorodov, “Absorption spectra and aqueous photochemistry of β-hydroxyalkyl nitrates of atmospheric interest”, Molecular Physics, vol. 113, pp. 2179-2190, 2015.
Donald R. Blake, Barbara J. Finlayson-Pitts, Sergey A. Nizkorodov, “James N. Pitts Jr. (1921–2014)”, EOS, vol. 96, 2015.
Sergey Nizkorodov, “The Second Sino-European School on Atmospheric Chemistry”, 2015. Presented at The Second Sino-European School on Atmospheric Chemistry, Shanghai, China, October 2015.
Sergey Nizkorodov, “Troy High School Seminar”, 2015. Presented at Troy High School, Fullerton, CA, USA, October 8, 2015.
“The role of condensed-phase photochemistry in atmospheric processing of aerosols and aqueous droplets”, 2015. Presented at Goldschmidt Conference, Prague, Czech Republic, Aug 16-21, 2015.
“The state of knowledge of condensed-phase photochemistry in atmospheric organic aerosols”, 2015. Presented at Gordon Research Conference on Atmospheric Chemistry, Waterville Valley, NH, USA, Aug 2-7, 2015.
“Photochemical and dark ageing processes in organic aerosols”, 2015. Presented at Innovations in Aerosol Physics and Chemistry, organized by the Center for Aerosol Science and Engineering (CASE) at Washington University in St. Louis, St. Louis, MO, USA, July 13-15, 2015.
“Composition and aging of secondary organic aerosols under illuminated and dark conditions”, 2015. Presented at Interface between indoor and atmospheric chemistry, Lille, France, May 15-16, 2015.
“Aqueous-phase and organic-phase photochemistry of atmospheric organic compounds”, 2015. Presented at 249th American Chemical Society National Meeting, Denver, CO, USA, March 22-26, 2015.
“Photolysis of organic compounds in atmospheric aerosols”, 2015. Presented at The International Chemical Congress of Pacific Basin Societies (Pacifichem), Honolulu, HI, USA, Dec. 15-20, 2015.
Shikang Tao, Xiaohui Lu, Nicole Levac, Adam P. Bateman, Tran B. Nguyen, David L. Bones, Sergey A. Nizkorodov, Julia Laskin, Alexander Laskin, Xin Yang, “Molecular characterization of organosulfates in organic aerosols from Shanghai and Los Angeles urban areas by nanospray-desorption electrospray ionization high-resolution mass spectrometry”, Environmental Science & Technology, vol. 48, pp. 10993-11001, 2014.
Julia Laskin, Alexander Laskin, Sergey A. Nizkorodov, Patrick Roach, Peter Eckert, Mary K. Gilles, Bingbing Wang, Hyun Ji (Julie) Lee, Qichi Hu, “Molecular selectivity of brown carbon chromophores”, Environmental Science & Technology, vol. 48, pp. 12047-12055, 2014.
Scott A. Epstein, Sandra L. Blair, Sergey A. Nizkorodov, “Direct photolysis of α-pinene ozonolysis secondary organic aerosol: effect on particle mass and peroxide content”, Environmental Science & Technology, vol. 48, pp. 11251-11258, 2014.
Jorge Michel Flores, Rebecca A. Washenfelder, Gabriela Adler, Hyun Ji (Julie) Lee, Lior Segev, Julia Laskin, Alexander Laskin, Sergey A. Nizkorodov, Steven S. Brown, Yinon Rudich, “Complex refractive indices in the near-ultraviolet spectral region of biogenic secondary organic aerosol aged with ammonia”, Physical Chemistry Chemical Physics, vol. 16, pp. 10629-10642, 2014.
Hanna Lignell, Mallory L. Hinks, Sergey A. Nizkorodov, “Exploring matrix effects on photochemistry of organic aerosols”, Proceedings of the National Academy of Sciences, vol. 111, pp. 13780-13785, 2014.
Rachel E. O’Brien, Alexander Neu, Scott A. Epstein, Amanda C. MacMillan, Bingbing Wang, Stephen T. Kelly, Sergey A. Nizkorodov, Alexander Laskin, Ryan C. Moffet, Mary K. Gilles, “Physical properties of ambient and laboratory-generated secondary organic aerosol”, Geophysical Research Letters, vol. 41, pp. 4347-4353, 2014.
Dorit Shemesh, Sandra L. Blair, Sergey A. Nizkorodov, R. Benny Gerber, “Photochemistry of aldehyde clusters: cross-molecular versus unimolecular reaction dynamics”, Physical Chemistry Chemical Physics, vol. 16, pp. 23861-23868, 2014.
Amanda C. MacMillan, Theresa M. McIntire, Scott A. Epstein, Sergey A. Nizkorodov, “Effect of alkyl chain length on hygroscopicity of nanoparticles and thin films of imidazolium-based ionic liquids”, Journal of Physical Chemistry C, vol. 118, pp. 29458-29466, 2014.
Sergey Nizkorodov, “AirUCI Informal Seminar”, 2014. Presented at AirUCI Informal Seminar, Irvine, CA, USA, November 25, 2014.
Sergey Nizkorodov, “Fudan University Lecture”, 2014. Presented at Fudan University, Department of Environmental Science and Engineering, Shanghai, China, September 2014.
“Exploring atmospheric aerosol chemistry with advanced high-resolution mass spectrometry and particle imaging methods”, 2014. Presented at American Geophysical Union Meeting, San Francisco, CA, USA, December 15-19, 2014.
“Aqueous and aerosol photochemistry of atmospheric organic compounds”, 2014. Presented at 31st Informal Symposium on Kinetics and Photochemical Processes in the Atmosphere, Riverside, CA, USA, March 2014.
“Effect of relative humidity and temperature on photochemical aging of secondary organic aerosols”, 2014. Presented at American Geophysical Union Meeting, San Francisco, CA, USA, December 15-19, 2014.
“Photochemical aging of brown carbon aerosols”, 2014. Presented at 33 rd Annual AAAR Conference, Orlando, FL, USA, October 20-24, 2014.
“Photochemistry in secondary organic aerosols”, 2014. Presented at 248 th American Chemical Society National Meeting, San Francisco, CA, USA, August 10-14, 2014.
“Photochemistry in atmospheric aerosols and clouds”, 2014. Presented at EMSL User Meeting, Richland, WA, USA, May 6-7, 2014.
“Combined experimental and theoretical studies of photolysis of atmospherically relevant organic compounds in various phases”, 2014. Presented at 247th American Chemical Society National Meeting, Dallas, TX, USA, March 16-20, 2014.
“Photochemical and dark aging of secondary organic aerosols”, 2014. Presented at 247th American Chemical Society National Meeting, Dallas, TX, USA, March 16-20, 2014.
Hyun Ji (Julie) Lee, Alexander Laskin, Julia Laskin, Sergey A. Nizkorodov, “Excitation-emission spectra and fluorescence quantum yields for fresh and aged biogenic secondary organic aerosols”, Environmental Science & Technology, vol. 47, pp. 5763-5770, 2013.
Tran B. Nguyen, Alexander Laskin, Julia Laskin, Sergey A. Nizkorodov, “Brown carbon formation from ketoaldehydes of biogenic monoterpenes”, Faraday Discussions, vol. 165, pp. 473-494, 2013.
Hanna Lignell, Scott A. Epstein, Margaret R. Marvin, Dorit Shemesh, R. Benny Gerber, Sergey A. Nizkorodov, “Experimental and theoretical study of aqueous cis-pinonic acid photolysis”, Journal of Physical Chemistry A, vol. 117, pp. 12930-12945, 2013.
Scott A. Epstein, Enrico Tapavicza, Filipp Furche, Sergey A. Nizkorodov, “Direct photolysis of carbonyl compounds dissolved in cloud and fog droplets”, Atmospheric Chemistry and Physics, vol. 13, pp. 9461-9477, 2013.
Julia Laskin, Alexander Laskin, Sergey A. Nizkorodov, “New mass spectrometry techniques for studying physical chemistry of atmospheric heterogeneous processes”, International Reviews in Physical Chemistry, vol. 32, pp. 128-170, 2013.
Tran B. Nguyen, Sergey A. Nizkorodov, Alexander Laskin, Julia Laskin, “An approach toward quantification of organic compounds in complex environmental samples using high-resolution electrospray ionization mass spectrometry”, Analytical Methods, vol. 5, pp. 72-80, 2013.
Rachel E. O’Brien, Tran B. Nguyen, Alexander Laskin, Julia Laskin, Patrick L. Hayes, Shang Liu, Jose L. Jimenez, Lynn M. Russell, Sergey A. Nizkorodov, Allen H. Goldstein, “Probing molecular associations of field-collected and laboratory-generated SOA with nano-DESI high-resolution mass spectrometry”, Journal of Geophysical Research: Atmospheres, vol. 118, pp. 1042-1051, 2013.
Laskin J., Laskin A., Nizkorodov S., “Erratum to New mass spectrometry techniques for studying physical chemistry of atmospheric heterogeneous processes (International Reviews in Physical Chemistry, 10.1080/0144235X.2012.752904)”, International Reviews in Physical Chemistry, vol. 32, pp. 343, 2013.
Sergey Nizkorodov, “Sino-European School on Atmospheric Chemistry”, 2013. Presented at Sino-European School on Atmospheric Chemistry, Taicang City, China, May 2013.
“Photochemical processing of water-soluble organic compounds by clouds and fogs”, 2013. Presented at American Geophysical Union Meeting, San Francisco, CA, USA, December 9-13, 2013.
“Molecular-level analysis and photochemical aging of atmospheric organics in ambient particles and aqueous droplets”, 2013. Presented at XXXVIII Colloquium Spectroscopicum Internationale (CSI 2013), Tromsø, Norway, June 16-20, 2013.
“Water uptake by aerosolized nanoparticles: experiments, modeling, and molecular dynamics simulations”, 2013. Presented at XXV International Symposium on Molecular Beams, Prague, Czech Republic, June 9-14, 2013.
“Photochemical aging of atmospheric organics in ambient particles and aqueous droplets”, 2013. Presented at 245th American Chemical Society National Meeting, New Orleans, LA, USA, April 7-11, 2013.
“A systematic evaluation of the extent of photochemical processing in different types of secondary organic aerosols”, 2013. Presented at 32nd Annual AAAR Conference, Portland, OR, USA, September 30 – October 4, 2013.
“Processing of fresh and aged secondary organic aerosols by direct photolysis”, 2013. Presented at The Aerosol Society's Focus Meeting – Atmospheric Aerosols, University of Leeds, UK, July 24-24, 2013.
“Brown carbon formation from ketoaldehydes of biogenic monoterpenes”, 2013. Presented at Faraday Discussion 165: Tropospheric Aerosol – Formation, Transformation, Fate and Impacts, University of Leeds, UK, July 22-24, 2013.
“Photochemical degradation of primary and secondary brown carbon”, 2013. Presented at 30th Annual AAAR Conference, Orlando, FL, USA, October 3-7, 2011.
Alexander Laskin, Sergey A. Nizkorodov, Julia Laskin, “Mass spectrometric approaches for chemical characterization of atmospheric aerosols: critical review of the most recent advances”, Environ. Chem., vol. 9, pp. 163-189, 2012.
Scott A. Epstein, Dorit Shemesh, Van T. Tran, Sergey A. Nizkorodov, R. Benny Gerber, “Absorption spectra and photolysis of methyl peroxide in liquid and frozen water”, Journal of Physical Chemistry A, vol. 116, pp. 6068-6077, 2012.
Julia Laskin, Peter A. Eckert, Patrick J. Roach, Brandi S. Heath, Sergey A. Nizkorodov, Alexander Laskin, “Chemical analysis of complex organic mixtures using reactive nanospray desorption electrospray ionization mass spectrometry”, Analytical Chemistry, vol. 84, pp. 7179-7187, 2012.
Tran B. Nguyen, Alexander Laskin, Julia Laskin, Sergey A. Nizkorodov, “Direct aqueous photochemistry of isoprene high-NOx secondary organic aerosol”, Physical Chemistry Chemical Physics, vol. 14, pp. 9702-9714, 2012.
Adam P. Bateman, Julia Laskin, Alexander Laskin, Sergey A. Nizkorodov, “Applications of high- resolution electrospray ionization mass spectrometry to measurements of average oxygen to carbon ratios in secondary organic aerosols”, Environmental Science & Technology, vol. 46, pp. 8315-8324, 2012.
Scott A. Epstein, Sergey A. Nizkorodov, “A comparison of the chemical sinks of atmospheric organics in the gas and aqueous phase”, Atmospheric Chemistry and Physics, vol. 12, pp. 8205-8222, 2012.
Amanda C. MacMillan, Theresa M. McIntire, J. Alfredo Freites, Douglas J. Tobias, Sergey A. Nizkorodov, “Interaction of water vapor with the surfaces of imidazolium-based ionic liquid nanoparticles and thin films”, Journal of Physical Chemistry B, vol. 116, pp. 11255-11265, 2012.
Norbert Staimer, Tran B. Nguyen, Sergey A. Nizkorodov, Ralph J. Delfino, “Glutathione peroxidase inhibitory assay for electrophilic pollutants in diesel exhaust and tobacco smoke”, Analytical and Bioanalytical Chemistry, vol. 403, pp. 431-441, 2012.
Amanda C. MacMillan, John B. Morrison, Christopher W. Harmon, Sergey A. Nizkorodov, “Enhancement of surfactants in nanoparticles produced by an electrospray aerosol generator”, Aerosol Science and Technology, vol. 46, pp. 1239-1245, 2012.
David R. Fooshee, Tran B. Nguyen, Sergey A. Nizkorodov, Julia Laskin, Alexander Laskin, P. Baldi, “COBRA: a computational brewing application for predicting the molecular composition of organic aerosols”, Environmental Science & Technology, vol. 46, pp. 6048-6055, 2012.
Sergey Nizkorodov, “Evolution of organic aerosol composition and properties through aqueous chemistry and photochemistry”, 2012. Presented at 244th American Chemical Society National Meeting, Philadelphia, PA, USA, August 19-23, 2012.
Sergey Nizkorodov, “Photolysis of atmospheric organics in water and aerosols”, 2012. Presented at 243rd American Chemical Society National Meeting, San Diego, CA, USA, March 25-29, 2012.
“Interaction of water vapor with ionic liquid nanoparticles and thin films”, 2012. Presented at 244th American Chemical Society National Meeting, Philadelphia, PA, USA, August 19-23, 2012.
Tran B. Nguyen, Patrick J. Roach, Julia Laskin, Alexander Laskin, Sergey A. Nizkorodov, “Effect of humidity on the composition of isoprene photooxidation secondary organic aerosol”, Atmospheric Chemistry and Physics, vol. 11, pp. 6931-6944, 2011.
Sergey A. Nizkorodov, Julia Laskin, Alexander Laskin, “Molecular chemistry of organic aerosols through the application of high resolution mass spectrometry”, Physical Chemistry Chemical Physics, vol. 13, pp. 3612-3629, 2011.
Adam P. Bateman, Sergey A. Nizkorodov, Julia Laskin, Alexander Laskin, “Photolytic processing of secondary organic aerosols dissolved in cloud droplets”, Physical Chemistry Chemical Physics, vol. 13, pp. 12199-12212, 2011.
Tran B. Nguyen, Julia Laskin, Alexander Laskin, Sergey A. Nizkorodov, “Nitrogen-containing organic compounds and oligomers in secondary organic aerosol formed by photooxidation of isoprene”, Environmental Science & Technology, vol. 45, pp. 6908-6918, 2011.
Sergey Nizkorodov, “Probing molecular chemistry of aerosols with high resolution mass spectrometry”, 2011. Presented at Triennial review of the Environmental Molecular Science Laboratory, Richland, WA, USA, October 2011.
Sergey Nizkorodov, “Effect of chemical and photochemical cloud processing on the light absorption properties of biogenic secondary organic aerosols”, 2011. Presented at 242nd American Chemical Society National Meeting, Denver, CO, USA, August 2011.
“Molecular characterization of organic aerosols from the Los Angeles ground site during the CalNex 2010 campaign using high-resolution mass spectrometry”, 2011. Presented at CalNex 2010 Data Analysis Workshop, Sacramento, CA, USA, May 2011.
“Effect of cloud processing on the light absorption properties of biogenic secondary organic aerosols”, 2011. Presented at Gordon Research Conference on Atmospheric Chemistry, West Dover, VT, USA, August 2011.
“Modification of light absorption properties of organic aerosols by cloud processing”, 2011. Presented at CalNex 2010 Data Analysis Workshop, Sacramento, CA, USA, May 2011.
“Molecular characterization of organic compounds in atmospheric aerosols”, 2011. Presented at 240th American Chemical Society National Meeting, Boston, MA, USA, August 2010.
Julia Laskin, Alexander Laskin, Patrick J. Roach, Gordon W. Slysz, Gordon A. Anderson, Sergey A. Nizkorodov, David L. Bones, Lucas Q. Nguyen, “High-resolution desorption electrospray ionization mass spectrometry for chemical characterization of organic aerosols”, Analytical Chemistry, vol. 82, pp. 2048-2058, 2010.
Adam P. Bateman, Sergey A. Nizkorodov, Julia Laskin, Alexander Laskin, “High-resolution electrospray ionization mass spectrometry analysis of water-soluble organic aerosols collected with a particle into liquid sampler”, Analytical Chemistry, vol. 82, pp. 8010-8016, 2010.
Christopher W. Harmon, Ronald L. Grimm, Theresa M. McIntire, Mark D. Peterson, Bosa Njegic, Vanessa M. Angel, Ahmad Alshawa, Joelle S. Underwood, Douglas J. Tobias, R. Benny Gerber, Mark S. Gordon, John C. Hemminger, Sergey A. Nizkorodov, “Hygroscopic growth and deliquescence of NaCl nanoparticles mixed with surfactant SDS”, Journal of Physical Chemistry B, vol. 114, pp. 2435-2449, 2010.
Michael A. Kamboures, Sergey A. Nizkorodov, R. Benny Gerber, “Ultrafast photochemistry of methyl hydroperoxide on ice particles”, Proceedings of the National Academy of Sciences, vol. 107, pp. 6600-6604, 2010.
Sergey Nizkorodov, “Aging of secondary organic aerosols by carbonyl-amine chemistry”, 2010. Presented at 240th American Chemical Society National Meeting, Boston, MA, USA, August 2010.
Sergey Nizkorodov, “Hygroscopic growth of nanoparticles containing surface active molecules”, 2010. Presented at Gordon Research Conference on "Water & Aqueous Solutions", Holderness, NH, USA, August 2010.
“Hygroscopic properties of nanoparticles coated with ionic surfactants”, 2010. Presented at Pacifichem 2010, Honolulu, HI, USA, December 15-20, 2010.
“Photodegradation of organic hydroperoxides and carbonyls derived from atmospheric oxidation of unsaturated fatty acids in aerosols and could droplets”, 2010. Presented at Pacifichem 2010, Honolulu, HI, USA, December 15-20, 2010.
“Characterization of hygroscopic core-organic shell nanoparticles by tandem particle mobility measurements”, 2010. Presented at 31st DOE Annual Combustion Research Meeting, Warrenton, VA, USA, June 2010.
“Investigation of molecular level composition and atmospheric aging of organic aerosols”, 2010. Presented at 28th Annual AAAR Conference, Minneapolis, MN, USA, October 26-30, 2009.
Adam P. Bateman, Sergey A. Nizkorodov, Julia Laskin, Alexander Laskin, “Time-resolved molecular characterization of limonene/ozone aerosol using high-resolution electrospray ionization mass spectrometry”, Physical Chemistry Chemical Physics, vol. 11, pp. 7931-7942, 2009.
Xiang Pan, Joelle S. Underwood, Jia-Hua Xing, Stephen A. Mang, Sergey A. Nizkorodov, “Photodegradation of secondary organic aerosol generated from limonene oxidation by ozone studied with chemical ionization mass spectrometry”, Atmospheric Chemistry and Physics, vol. 9, pp. 3851-3865, 2009.
Ahmad Alshawa, Otto Dopfer, Christopher W. Harmon, Sergey A. Nizkorodov, Joelle S. Underwood, “Hygroscopic growth and deliquescence of NaCl nanoparticles coated with surfactant AOT”, Journal of Physical Chemistry A, vol. 113, pp. 7678-7686, 2009.
Jeffrey R. Suchard, Sergey A. Nizkorodov, Stacy A. Wilkinson, “1,4-Butanediol Content of Aqua Dots Children’s Craft Toy Beads”, Journal of Medical Toxicology, vol. 5, pp. 120-124, 2009.
Stephen A. Mang, Maggie L. Walser, Sergey A. Nizkorodov, John M. Laux, “Measurement of ozone emission and particle removal rates from portable air purifiers”, Journal of Chemical Education, vol. 86, pp. 219-221, 2009.
Stephen A. Mang, Maggie L. Walser, Xiang Pan, Jia-Hua Xing, Adam P. Bateman, Joelle S. Underwood, Anthony L. Gomez, Jiho Park, Sergey A. Nizkorodov, “Photochemistry of secondary organic aerosol formed from oxidation of monoterpenes”, Atmospheric Aerosols: Characterization, Chemistry and Modeling (ACS Symposium Series), ACS Symposium Series, pp. 91-109, 2009.
Sergey Nizkorodov, “Associated Students UCI Luncheon”, 2009. Presented at Associated Students UCI (ASUCI) Luncheon, Irvine, CA, USA, January 2009.
“Effect of slow aging reactions on optical properties of secondary organic aerosol prepared by oxidation of selected monoterpenes”, 2009. Presented at 2009 Joint Assembly of Geophysical Societies, Toronto, Ontario, Canada, May 2009.
“Chemical and photoinduced aging processes in secondary organic aerosol derived from oxidation of isoprene and selected monoterpenes”, 2009. Presented at Gordon Research Conference on Atmospheric Chemistry, Waterville Valley, NH, USA, August 2009.
“Extracting chemical and mechanistic information from high-resolution mass spectra of organic aerosols”, 2009. Presented at 24th Informal Symposium on Kinetics and Photochemical Processes in the Atmosphere, Los Angeles, CA, USA, Feb 2007.
Maggie L. Walser, Yury Desyaterik, Julia Laskin, Alexander Laskin, Sergey A. Nizkorodov, “High-resolution mass spectrometric analysis of secondary organic aerosol produced by ozonation of limonene”, Physical Chemistry Chemical Physics, vol. 10, pp. 1009-1022, 2008.
Adam P. Bateman, Maggie L. Walser, Yury Desyaterik, Julia Laskin, Alexander Laskin, Sergey A. Nizkorodov, “The effect of solvent on the analysis of secondary organic aerosol using electrospray ionization mass spectrometry”, Environmental Science & Technology, vol. 42, pp. 7341-7346, 2008.
Stephen A. Mang, Dana K. Henricksen, Adam P. Bateman, Mads P.S. Andersen, Donald R. Blake, Sergey A. Nizkorodov, “Contribution of carbonyl photochemistry to aging of atmospheric secondary organic aerosol”, Journal of Physical Chemistry A, vol. 112, pp. 8337-8344, 2008.
François Lique, Millard A. Alexander, Guoliang Li, Hans-Joachim Werner, Sergey A. Nizkorodov, Warren W. Harper, David J. Nesbitt, “Evidence for excited spin-orbit state reaction dynamics in F + H2: theory and experiment”, Journal of Chemical Physics, vol. 128, pp. 084313: 1-9, 2008.
Anthony L. Gomez, Tanza L. Lewis, Stacy A. Wilkinson, Sergey A. Nizkorodov, “Stoichiometry of ozonation of environmentally relevant olefins in saturated hydrocarbon solvents”, Environmental Science & Technology, vol. 42, pp. 3582-3587, 2008.
Jeffrey R. Suchard, Sergey A. Nizkorodov, Stacy A. Wilkinson, “1,4-Butanediol Content of Aqua Dots Craft Toy Beads”, Academic Emergency Medicine, vol. 15, pp. S84-S102, 2008.
Sergey Nizkorodov, “UCI Middle School Science Career Conference”, 2008. Presented at UCI Middle School Science Career Conference, Irvine, CA, USA, December 2008.
Sergey Nizkorodov, “Chemical Sciences Roundtable Workshop”, 2008. Presented at Chemical Sciences Roundtable Workshop, Washington, DC, USA, August 2008.
Sergey Nizkorodov, “Photodissociation processes in secondary organic aerosol particles”, 2008. Presented at 235th American Chemical Society National Meeting, New Orleans, Louisiana, USA, April 2008.
“Hygroscopic growth of nanoparticles containing surface active molecules prepared by an electrospray aerosol source”, 2008. Presented at 27th Annual AAAR Conference, Orlando, FL, USA, October 20-24, 2008.
“Photodegradation of secondary organic aerosol derived from oxidation of terpenes”, 2008. Presented at 27th Annual AAAR Conference, Orlando, FL, USA, October 20-24, 2008.
Maggie L. Walser, Jiho Park, Anthony L. Gomez, Ashley R. Russell, Sergey A. Nizkorodov, “Photochemical aging of secondary organic aerosol particles generated from the oxidation of d-limonene”, Journal of Physical Chemistry A, vol. 111, pp. 1907-1913, 2007.
Ahmad Alshawa, Ashley R. Russell, Sergey A. Nizkorodov, “Kinetic analysis of competition between aerosol particle removal and generation by ionization air purifiers”, Environmental Science & Technology, vol. 41, pp. 2498-2504, 2007.
Horia-Sorin Andrei, Sergey A. Nizkorodov, Otto Dopfer, “IR spectra of protonated carbonic acid and its isomeric H3O + ·CO2 complex”, Angew. Chem. Int. Ed, vol. 46, pp. 4754-4756, 2007.
Andrei H., Nizkorodov S., Dopfer O., “Erratum: IR spectra of protonated carbonic acid and its isomeric H <inf>3</inf>O<sup>+</sup>·CO<inf>2</inf> complex (Angewandte Chemie - International Edition (2007) 46, (4754-4756) DOI:10.1002/anie.200700750)”, Angewandte Chemie - International Edition, vol. 46, pp. 5999, 2007.
Sergey Nizkorodov, “Photochemistry of secondary organic aerosol particles formed in oxidation of monoterpenes by O3 and NO3”, 2007. Presented at Workshop, "Interfacial chemistry in indoor environments", Berkeley, CA, USA, July 2007.
Sergey Nizkorodov, “UCI Chancellor’s Club Luncheon”, 2007. Presented at UCI Chancellor’s Club Luncheon, Irvine, CA, USA, August 2007.
Sergey Nizkorodov, “Ninth Annual Discover the Physical Sciences Breakfast Lecture Series”, 2007. Presented at Ninth Annual Discover the Physical Sciences Breakfast Lecture Series, Irvine, CA, USA, January 2007.
Sergey Nizkorodov, “Photochemistry of organic aerosol formed by oxidation of monoterpenes”, 2007. Presented at 234th American Chemical Society National Meeting, Boston, Massachusetts, USA, August 2007.
Sergey Nizkorodov, “Photochemical aging of organic aerosol particles”, 2007. Presented at 2007 Joint Assembly of Geophysical Societies, Acapulco, Mexico, May 2007.
“Ultrafine aerosol particle and ozone generation by ionization and ozonation air-purifiers”, 2007. Presented at Gordon Research Conference on Atmospheric Chemistry, Big Sky, MT, USA, August 2007.
“Photochemical processing of secondary organic aerosol particles”, 2007. Presented at Gordon Research Conference on Atmospheric Chemistry, Big Sky, MT, USA, September 2005.
Nicole Britigan, Ahmad Alshawa, Sergey A. Nizkorodov, “Quantification of ozone levels in indoor environments generated by ionization and ozonolysis air-purifiers”, JAWMA, vol. 56, pp. 601-610, 2006.
Jiho Park, Anthony L. Gomez, Maggie L. Walser, Ao Lin, Sergey A. Nizkorodov, “Ozonolysis and photolysis of alkene-terminated self-assembled monolayers on quartz nanoparticles: implications for photochemical aging of organic aerosol particles”, Physical Chemistry Chemical Physics, vol. 8, pp. 2506-2512, 2006.
Anthony L. Gomez, Jiho Park, Maggie L. Walser, Ao Lin, Sergey A. Nizkorodov, “UV photodissociation spectroscopy of oxidized undecylenic acid films”, Journal of Physical Chemistry A, vol. 110, pp. 3584-3592, 2006.
Sergey Nizkorodov, “Photochemical processing of secondary organic aerosol particles”, 2006. Presented at Workshop, "Atmospheric Chemistry: Climate Change with Trace Gases and Aerosols", Telluride, CO, USA, August 2006.
Sergey Nizkorodov, “Organic aerosol particles in indoor and outdoor air”, 2006. Presented at ACS Orange County Section March dinner meeting, Santa Ana, CA, USA, March 2006.
Sergey Nizkorodov, “Photochemistry of secondary organic aerosol particles”, 2006. Presented at 40th American Chemical Society Western Regional Meeting, Anaheim, CA, USA, January 2006.
“Ultrafine aerosol particle generation by ionization air purifiers”, 2006. Presented at 2006 AirUCI Meeting, Christchurch, New Zealand, December 2006.
“Laboratory studies of photochemical processing of secondary organic aerosol particles”, 2006. Presented at 7th International Aerosol Conference, St. Paul, MN, USA, September 2006.
Sergey A. Nizkorodov, Michael Ziemkiewicz, David J. Nesbitt, Alan E. W. Knight, “Overtone spectroscopy of H2O clusters in the vOH=2 manifold: infrared-ultraviolet vibrationally mediated dissociation studies”, Journal of Chemical Physics, vol. 122, pp. 194316: 1-11, 2005.
Sergey A. Nizkorodov, John D. Crounse, Juliane L. Fry, Coleen M. Roehl, Paul O. Wennberg, “Near-IR photodissociation of peroxy acetyl nitrate”, Atmospheric Chemistry and Physics, vol. 5, pp. 385-392, 2005.
Sergey Nizkorodov, “OCSEA Science and Technology Conference”, 2005. Presented at OCSEA Science and Technology Conference, Santa Ana, CA, USA, November 2005.
Sergey Nizkorodov, “Osher Lifelong Learning Institute Lecture”, 2005. Presented at Osher Lifelong Learning Institute, Irvine, CA, USA, October 2005.
Sergey Nizkorodov, “UCI Cosmos Program Lecture (2005)”, 2005. Presented at UCI Cosmos Program, Irvine, CA, USA, July 2005.
Sergey Nizkorodov, “Photochemical processes in secondary organic aerosol particles”, 2005. Presented at Coblentz award lecture at the 60th Intern. Symp. on Molecular Spectroscopy, Columbus, Ohio, USA, June 2005.
Sergey Nizkorodov, “Studying chemistry with vibrational overtone photodissociation spectroscopy”, 2005. Presented at 23rd Informal Symposium on Kinetics and Photochemical Processes in the Atmosphere, Pasadena, CA, USA, February 2006.
“Photochemistry of aged organic aerosol particles”, 2005. Presented at 2005 AirUCI Meeting, Prague, Czech Republic, June 2005.
“Photodissociation action spectroscopy of ozonized films of undecylenic acid”, 2005. Presented at 2005 American Physical Society March Meeting, Los Angeles, CA, USA, March 2005.
“Photochemistry of oxidized organic aerosol particles”, 2005. Presented at 228th American Chemical Society National Meeting, Philadelphia, PA, USA, August 2004.
Yael Dubowski, John Vieceli, Douglas J. Tobias, Anthony L. Gomez, Ao Lin, Sergey A. Nizkorodov, Theresa M. McIntire, Barbara J. Finlayson-Pitts, “Interaction of gas-phase ozone at 296 K with unsaturated self-assembled monolayers: a new look at an old system”, Journal of Physical Chemistry A, vol. 108, pp. 10473-10485, 2004.
Juliane L. Fry, Sergey A. Nizkorodov, Mitchio Okumura, Coleen M. Roehl, Joseph S. Francisco, Paul O. Wennberg, “Cis-cis and trans-perp HOONO: action spectroscopy and isomerization kinetics”, Journal of Chemical Physics, vol. 121, pp. 1432-1448, 2004.
Sergey A. Nizkorodov, Stanley P. Sander, Linda R. Brown, “Temperature and pressure dependence of high-resolution air-broadened absorption cross sections of NO2 (415-525 nm)”, Journal of Physical Chemistry A, vol. 108, pp. 4864-4872, 2004.
Sergey Nizkorodov, “UCI Cosmos Program Lecture (2004)”, 2004. Presented at UCI Cosmos Program, Irvine, CA, USA, July 2004.
“Photodissociation action spectroscopy at organic aerosol particle-air interfaces”, 2004. Presented at 228th American Chemical Society National Meeting, Philadelphia, PA, USA,
“Ozonolysis of organic particles studied with laser ablation - chemical ionization aerosol mass spectrometry”, 2004. Presented at 22nd Annual AAAR Conference, Anaheim, CA, USA, October 2003.
Brian D. Bean, Andrew K. Mollner, Sergey A. Nizkorodov, Gautham Nair, Mitchio Okumura, Stanley P. Sander, Kirk A. Peterson, Joseph S. Francisco, “Cavity ringdown spectroscopy of cis-cis HOONO and the HOONO/HONO2 branching ratio in the reaction OH + NO2 + M”, Journal of Physical Chemistry A, vol. 107, pp. 6974-6985, 2003.
Sergey A. Nizkorodov, Michael Ziemkiewicz, Tanya L. Myers, David J. Nesbitt, “Vibrationally mediated dissociation dynamics of H2O in the vOH = 2 polyad”, Journal of Chemical Physics, vol. 119, pp. 10158-10168, 2003.
“Surface photochemistry of oxidized organic layers immobilized on sea-salt studied with cavity-ring down spectroscopy”, 2003. Presented at Gordon Research Conference on Atmospheric Chemistry, Big Sky, MT, USA, September 2003.
“Novel instrumentation for investigation of photochemistry in atmospheric particle-air interfaces”, 2003. Presented at 50th Annual Western Spectroscopy Association Conference, Pacific Grove, CA, USA, January 2003.
“Photochemistry of atmospheric aerosols studied with action spectroscopy”, 2003. Presented at Atmospheric Chemistry and Air Pollution Yesterday, Today and Tomorrow: a Symposium to Honor James N. Pitts, Jr., University of California, Irvine, CA, USA, August 2001.
Coleen M. Roehl, Sergey A. Nizkorodov, Hui Zhang, Geoffrey A. Blake, Paul O. Wennberg, “Photodissociation of peroxynitric acid in the near-IR”, Journal of Physical Chemistry A, vol. 106, pp. 3766-3772, 2002.
Sergey A. Nizkorodov, Paul O. Wennberg, “First spectroscopic observation of gas-phase HOONO”, Journal of Physical Chemistry A, vol. 106, pp. 855-859, 2002.
Warren W. Harper, Sergey A. Nizkorodov, David J. Nesbitt, “Reactive scattering of F + HD → HF(v,J) + D: HF(v,J) nascent product state distributions and evidence for quantum transition state resonances”, Journal of Chemical Physics, vol. 116, pp. 5622-5632, 2002.
“Ozonolysis of undecylenic and oleic acid films studied with infrared cavity-ring down spectroscopy”, 2002. Presented at 223rd American Chemical Society National Meeting, Orlando, FL, USA,
Warren W. Harper, Sergey A. Nizkorodov, David J. Nesbitt, “Differential scattering dynamics of F + CH4 → HF(v,J) + CH3 via high-resolution IR laser Dopplerimetry”, Chemical Physics Letters, vol. 335, pp. 381-387, 2001.
Sergey A. Nizkorodov, Warren W. Harper, David J. Nesbitt, “Fast vibrational relaxation of OH(v=9) by ammonia and ozone”, Chemical Physics Letters, vol. 341, pp. 107-114, 2001.
“Observation and characterization of HOONO in the OH + NO2 reaction”, 2001. Presented at 222nd American Chemical Society National Meeting, Chicago, IL, USA,
“Vibrationally-mediated dissociation of water molecules inside (H2O)2 and Ar-H2O”, 2001. Presented at 48th Annual Western Spectroscopy Association Conference, Pacific Grove, CA, USA,
“Experimental study of vibrationally mediated dissociation of PNA, PAN and HOONO”, 2001. Presented at Gordon Research Conference on Atmospheric Chemistry, Newport, RI, USA, June 2001.
“Experimental study of vibrationally mediated dissociation of PNA, PAN and HOONO”, 2001. Presented at Gordon Research Conference on Molecular Energy Transfer, Ventura, CA, USA, January 2001.
“Vibrationally-mediated photodissociation dynamics of H2O in the vOH = 2 polyad”, 2001. Presented at 17th Conference on the Dynamics of Molecular Collisions, Split Rock, PA, USA, July 1999.
Warren W. Harper, Sergey A. Nizkorodov, David J. Nesbitt, “Quantum state-resolved reactive scattering of F + CH4 → HF(v,J) + CH3: nascent HF(v,J) product state distributions”, Journal of Chemical Physics, vol. 113, pp. 3670-3680, 2000.
Sergey A. Nizkorodov, Warren W. Harper, Brad W. Blackmon, David J. Nesbitt, “Temperature dependent kinetics of the OH/HO2/O3 chain reaction by time-resolved IR laser absorption spectroscopy”, Journal of Physical Chemistry A, vol. 104, pp. 3964-3973, 2000.
Sergey A. Nizkorodov, Warren W. Harper, William B. Chapman, Brad W. Blackmon, David J. Nesbitt, “Energy-dependent cross-sections and nonadiabatic reaction dynamics in F( 2 P3/2, 2 P1/2) + n-H2 → HF(v,J) + H”, Journal of Chemical Physics, vol. 111, pp. 8404-8416, 1999.
Rouslan V. Olkhov, Sergey A. Nizkorodov, Otto Dopfer, “Intermolecular interaction in the CH3 + ---He ionic complex revealed by ab initio calculations and infrared photodissociation spectroscopy”, Journal of Chemical Physics, vol. 110, pp. 9527-9535, 1999.
Sergey A. Nizkorodov, Warren W. Harper, David J. Nesbitt, “State-to-state reaction dynamics in crossed supersonic jets: threshold evidence for non-adiabatic channels in F + H2”, Faraday. Disc. Chem. Soc., vol. 113, pp. 107-117, 1999.
“State-to-state reaction dynamics in F+H2 studied in crossed supersonic jets”, 1999. Presented at Gordon Research Conference on Atomic and Molecular Interactions, NH, USA, June 1998.
Rouslan V. Olkhov, Sergey A. Nizkorodov, Otto Dopfer, “Infrared photodissociation spectra of CH3 + --- Arn complexes (n=1-8)”, Journal of Chemical Physics, vol. 108, pp. 10046-10060, 1998.
William B. Chapman, Brad W. Blackmon, Sergey A. Nizkorodov, David J. Nesbitt, “Quantum state-resolved reactive scattering of F + H2 in supersonic jets: nascent HF(v,J) rovibrational distributions via IR laser direct absorption methods”, Journal of Chemical Physics, vol. 109, pp. 9306-9317, 1998.
Rouslan V. Olkhov, Sergey A. Nizkorodov, Otto Dopfer, “Infrared photodissociation spectra of isomeric SiOH + ---Arn (n=1-10) complexes”, Chemical Physics, vol. 239, pp. 393-407, 1998.
Sergey A. Nizkorodov, Markus Meuwly, John P. Maier, Otto Dopfer, Evan J. Bieske, “Infrared predissociation spectra of Nen---HN2 + clusters (n=1-5)”, Journal of Chemical Physics, vol. 108, pp. 8964-8975, 1998.
Doris Roth, Sergey A. Nizkorodov, John P. Maier, Otto Dopfer, “Intermolecular interaction in the OH + --- He and OH + ---Ne open-shell ionic complexes: Infrared predissociation spectra of the v1 and v1+vb vibrations”, Journal of Chemical Physics, vol. 109, pp. 3841-3849, 1998.
Otto Dopfer, Sergey A. Nizkorodov, Rouslan V. Olkhov, John P. Maier, Ken Harada, “Infrared spectrum of the Ar---NH2 + ionic complex”, Journal of Physical Chemistry A, vol. 102, pp. 10017-10024, 1998.
Sergey A. Nizkorodov, Evan J. Bieske, “Photofragmentation dynamics of the (N2O)2 + and (N2O)3 + clusters: fragment N2O + A←X spectra”, Chemical Physics, vol. 239, pp. 369-378, 1998.
“Vibrationally-mediated photodissociation of H2O, (H2O)2 and Ar-H2O: Spectroscopy and energy flow dynamics”, 1998. Presented at 4th Annual Rocky Mountain Symposium on Photons and Chemistry, Estes Park, CO, USA,
“State-to-state reactive scattering study of the F + n-H2 reaction in crossed molecular jets”, 1998. Presented at Symposium on Atomic Cluster and Surface Physics, Engelberg, Switzerland, January 1996.
Otto Dopfer, Sergey A. Nizkorodov, Markus Meuwly, Evan J. Bieske, John P. Maier, “Microsolvation of the ammonium ion in argon: infrared spectra of NH4 + ---Arn complexes (n=1-7)”, International Journal of Mass Spectrometry and Ion Processes, vol. 167-168, pp. 637-647, 1997.
Sergey A. Nizkorodov, Yuri Spinelli, Evan J. Bieske, John P. Maier, Otto Dopfer, “Dissociation energy of the Ar---HN2 + complex”, Chemical Physics Letters, vol. 265, pp. 303-307, 1997.
Rouslan V. Olkhov, Sergey A. Nizkorodov, Otto Dopfer, “Hindered rotation in ion-neutral molecular complexes: The v1 vibration of H2---HCO + and D2---DCO +”, Journal of Chemical Physics, vol. 107, pp. 8229-8238, 1997.
Sergey A. Nizkorodov, Doris Roth, Rouslan V. Olkhov, John P. Maier, Otto Dopfer, “Infrared predissociation spectra of He---HO2 + and Ne---HO2 + : prediction of the v1 frequency of HO2 +”, Chemical Physics Letters, vol. 278, pp. 26-30, 1997.
Markus Meuwly, Sergey A. Nizkorodov, Evan J. Bieske, John P. Maier, Otto Dopfer, “Reply to the comment on “The v3 infrared spectrum of the He---NH4 + complex””, Chemical Physics Letters, vol. 270, pp. 252-254, 1997.
Markus Meuwly, Sergey A. Nizkorodov, John P. Maier, Evan J. Bieske, “Mid-infrared spectra of He--- HN2 + and He2---HN2 +”, Journal of Chemical Physics, vol. 104, pp. 3876-3885, 1996.
Sergey A. Nizkorodov, Otto Dopfer, Markus Meuwly, John P. Maier, Evan J. Bieske, “Mid-infrared spectra of the proton-bound complexes Nen---HCO + (n=1, 2)”, Journal of Chemical Physics, vol. 105, pp. 1770-1777, 1996.
Otto Dopfer, Sergey A. Nizkorodov, Markus Meuwly, Evan J. Bieske, John P. Maier, “The v3 infrared spectrum of the He---NH4 + complex”, Chemical Physics Letters, vol. 260, pp. 545-550, 1996.
Evan J. Bieske, Sergey A. Nizkorodov, Otto Dopfer, John P. Maier, Ross J. Stickland, Bryan J. Cotterell, Brian J. Howard, “Observation of the infrared spectrum of the v3 band of the argon-ammonium ionic complex”, Chemical Physics Letters, vol. 250, pp. 266-272, 1996.
“Mid-infrared spectra of ionic proton-bound complexes: intermolecular interaction and solvation effects”, 1996. Presented at Structure and Reactivity of Molecular Ions, Dourdan, France, January 1994.
Sergey A. Nizkorodov, Otto Dopfer, Thomas Ruchti, Markus Meuwly, John P. Maier, Evan J. Bieske, “Size effects in cluster infrared spectra: the v1 band of Arn---HCO + (n= 1-13)”, Journal of Physical Chemistry, vol. 99, pp. 17118-17129, 1995.
Evan J. Bieske, Sergey A. Nizkorodov, Frederick R. Bennett, John P. Maier, “The infrared spectrum of the H2---HCO + complex”, Journal of Chemical Physics, vol. 102, pp. 5152-5164, 1995.
Sergey A. Nizkorodov, John P. Maier, Evan J. Bieske, “The infrared spectrum of He---HCO +”, Journal of Chemical Physics, vol. 103, pp. 1297-1302, 1995.
Sergey A. Nizkorodov, John P. Maier, Evan J. Bieske, “The infrared spectrum of the N2H + ---He ion- neutral complex”, Journal of Chemical Physics, vol. 102, pp. 5570-5571, 1995.
Evan J. Bieske, Sergey A. Nizkorodov, Frederick R. Bennett, John P. Maier, “Combined infrared and ab initio study of the H2---NH2 + complex”, International Journal of Mass Spectrometry and Ion Processes, vol. 149/150, pp. 167-177, 1995.
“State-to-state reactive scattering study of the F + n-H2 reaction in crossed molecular beams”, 1995. Presented at Structure and Reactivity of Molecular Ions, Spandau, Germany,
Adrian A. Friedmann, Antony M. Soliva, Sergey A. Nizkorodov, Evan J. Bieske, John P. Maier, “A 3 Πu ← X 3 Σg - electronic spectrum of N3 +”, Journal of Physical Chemistry, vol. 98, pp. 8896-8902, 1994.
Evan J. Bieske, Sergey A. Nizkorodov, Adrian A. Friedmann, John P. Maier, “Metastable decay of N2 + --- Hen (v = 1) (1 < n ≤ 6) clusters”, International Journal of Mass Spectrometry and Ion Processes, vol. 135, pp. 19-30, 1994.
Adrian A. Friedmann, Sergey A. Nizkorodov, Evan J. Bieske, John P. Maier, “Discrete UV absorption by N3 + ---(N2)n clusters”, Chemical Physics Letters, vol. 224, pp. 16-20, 1994.
Dan Lessen, Sergey A. Nizkorodov, Patrick Knupfer, Thomas Ruchti, Evan J. Bieske, John P. Maier, “Rotational distribution of N2 + fragments from 355 nm photolysis of N4 +”, Chemical Physics Letters, vol. 226, pp. 187-192, 1994.
Sergey A. Nizkorodov, Vladimir I. Makarov, Igor V. Khmelinskii, Sergei A. Kotschubei, Konstantin A. Amosov, “LIF detection of NO3 radical after pulsed excitation of NO2 vapor at 436.45 nm”, Chemical Physics Letters, vol. 222, pp. 135-140, 1994.
“Metastable decay of N2”, 1994. Presented at Structure and Reactivity of Molecular Ions, Dourdan, France, January 1994.
Sergey A. Nizkorodov, Vladimir I. Makarov, Igor V. Khmelinskii, Sergei A. Kotschubei, Konstantin A. Amosov, “Time-resolved fluorescence of NO2 in a magnetic field”, Chemical Physics Letters, vol. 215, pp. 662-667, 1993.

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Most Cited Publications

Alexander Laskin, Julia Laskin, Sergey A. Nizkorodov, “Chemistry of atmospheric brown carbon”, Chemical Reviews, vol. 115, pp. 4335-4382, 2015.
Christian George, Markus Ammann, Barbara D'Anna, D. James Donaldson, Sergey A. Nizkorodov, “Heterogeneous photochemistry in the atmosphere”, Chemical Reviews, vol. 115, pp. 4218-4258, 2015.
Katelyn M. Updyke, Tran B. Nguyen, Sergey A. Nizkorodov, “Formation of brown carbon via reactions of ammonia with secondary organic aerosols from biogenic and anthropogenic precursors”, Atmos. Env., vol. 63, pp. 22-31, 2012.
David L. Bones, Dana K. Henricksen, Stephen A. Mang, Michael Gonsior, Adam P. Bateman, Tran B. Nguyen, William J. Cooper, Sergey A. Nizkorodov, “Appearance of strong absorbers and fluorophores in limonene-O3 secondary organic aerosol due to NH4+-mediated chemical aging over long time scales”, Journal of Geophysical Research: Atmospheres, vol. 115, pp. D05203, 2010.
Hyun Ji (Julie) Lee, Paige K. Aiona, Alexander Laskin, Julia Laskin, Sergey A. Nizkorodov, “Effect of solar radiation on the optical properties and molecular composition of laboratory proxies of atmospheric brown carbon”, Environmental Science & Technology, vol. 48, pp. 10217-10226, 2014.
Peng Lin, Paige K. Aiona, Ying Li, Manabu Shiraiwa, Julia Laskin, Sergey A. Nizkorodov, Alexander Laskin, “Molecular characterization of brown carbon in biomass burning aerosol particles”, Environmental Science & Technology, vol. 50, pp. 11815-11824, 2016.
Peng Lin, Nir Bluvshtein, Yinon Rudich, Sergey A. Nizkorodov, Julia Laskin, Alexander Laskin, “Molecular chemistry of atmospheric brown carbon inferred from a nationwide biomass burning event”, Environmental Science & Technology, vol. 51, pp. 11561-11570, 2017.
Tran B. Nguyen, Paula B. Lee, Katelyn M. Updyke, David L. Bones, Julia Laskin, Alexander Laskin, Sergey A. Nizkorodov, “Formation of nitrogen- and sulfur-containing light-absorbing compounds accelerated by evaporation of water from secondary organic aerosols”, Journal of Geophysical Research: Atmospheres, vol. 117, pp. D01207, 2012.
Peng Lin, Lauren T. Fleming, Sergey A. Nizkorodov, Julia Laskin, Alexander Laskin, “Comprehensive molecular characterization of atmospheric brown carbon by high resolution mass spectrometry with electrospray and atmospheric pressure photoionization”, Analytical Chemistry, vol. 90, pp. 12493-12502, 2018.
Tran B. Nguyen, Adam P. Bateman, David L. Bones, Sergey A. Nizkorodov, Julia Laskin, Alexander Laskin, “High-resolution mass spectrometry analysis of secondary organic aerosol generated by ozonolysis of isoprene”, Atmospheric Environment, vol. 44, pp. 1032-1042, 2010.

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Contact Information

Website: http://aerosol.chem.uci.edu/

Email: nizkorod@uci.edu

Phone: (949) 824-1262

Address: Department of Chemistry, 377 Rowland Hall, University of California, Irvine, Irvine, California, 92697-2025

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This profile was last updated on 2/12/2025.

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