Latest News
March 26, 2026
Congratulations Steven on receipt of the DOE SCGSR 2026 fellowship to conduct research at a DOE national laboratory. Onwards and Upwards!
March 23, 2026
Kudos to Hannah on award of Frederick N. Andrews Environmental Grant. We are proud of you!
March 19, 2026
Congratulations to Steven on receiving the Excellence in Collaborative/Industrial Research (ECIR) Award from the Analytical Chemistry Division at Purdue Chemistry.
January 22, 2026
Our research has been featured on the cover of Environmental Science: Atmospheres, underscoring the impact and visibility of this work.
December 21, 2025
Congratulations Dr. Calderon-Arrieta on your commencement. We wish you the very best.
@alaskinlab
Welcome!
We are a multi-disciplinary experimental group with research interests in the areas of Analytical and Physical Chemistry of airborne particles and environmental interfaces, driven by the overarching goals of understanding their impact on the atmospheric chemistry, the air pollution and the Earth’s climate. Our research efforts include three inter-related areas: Development and applications of new analytical methods for chemical characterization of aerosols; Chemical imaging and molecular-level studies of field collected particles; Laboratory studies of multi-phase chemistry of particles and interfaces.
Contact Us:
Department of Chemistry
Purdue University
560 Oval Drive
West Lafayette, IN 47907-2084
Phone: (765) 494-5243
Email: alaskin@purdue.edu
Twitter: @alaskinlab
Recent Publications
268) E. Halpern, D. Dotson, Q. Xie, P. Christ, K. MacFeely, L. Heirty, S. Nizkorodov, A. Laskin. Estimation of Gas-Particle Partitioning in Complex Plastic and Biomass Burning Mixtures. Aerosol Science & Technology, (2026), published online. https://doi.org/10.1080/02786826.2025.2609955
266) F.A. Rivera-Adorno, T.E. Olayemi, J.I. Ese, S.A.L. Sharpe, M. Fraund, R. C. Moffet, Ajith T.C., E. Windwer, Z. Fang, Y. Rudich, P. Valencia-Acuña, B. O’Callahan, P. El-Khoury, A. Laskin. Multi-modal Spectro-microscopy Investigation of Composition and Source Apportionment of Sub-micron Soot Particles. Aerosol Science and Technology, (2026). https://doi.org/10.1080/02786826.2025.2519101
265) D. Calderon-Arrieta, J. Knull, S. Sarker, J.K. Wang, L. Evans, J. Ese, S.M. Koloski, A. M. Smith, N. Hajian, K. Hill, and A. Laskin. Comparative Analysis of Atmospheric Brown Carbon Species in Dung and Wood Pyrolysis Products. Environmental Science: Atmospheres, 6, 61-75, (2026). https://doi.org/10.1039/D5EA00105F
264) S. Sharpe, Y. Li, S. Benjemina, F. Rivera-Adorno, T. Olayemi, J. Ese, X. Shen, M. Fraund, R. Moffet, N.N. Lata, Z. Chen, S. China, M. Marcus, J. Dykema, F. Keutsch, D. Cziczo, and A. Laskin. Chemical Imaging of Individual Atmospheric Particles Present in the Summer Stratosphere. Environmental Science: Atmospheres, 6, 47-60, (2026). https://doi.org/10.1039/D5EA00127G (COVER ARTICLE)