AGUSTIN J. COLUSSI


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	:: ::	Email: ajcoluss@caltech.edu Phone: 626 395 4402
Physical Chemistry Chemical Kinetics Interfacial Chemistry Organic Aerosol Photochemistry		Education Ph. D (Physical Chemistry) University of Buenos Aires (1972) B. Sc (Chemistry) University of Buenos Aires (1968) Postdoctoral University of Southern California (1976-1977) Stanford Research Institute (1975-1976) National Research Council of Canada (1972-1974) Currently Senior Research Associate Environmental Science and Engineering, California Institute of Technology Formerly Professor of Physical Chemistry University of Buenos Aires (1996-1998) University of Mar del Plata (1978-1991) Principal Investigator National Research Council of Argentina (1980-2000) Visiting Professor Department of Chemistry, University of Oregon (1988) Senior Research Associate Jet Propulsion Laboratory (1989-90) Publications (since 2003) - Anions catalyze the conversion of NO₂ to HONO on fog and cloud droplets (with A. Yabushita, S. Enami, Y. Sakamoto, M. Kawasaki, and M. R. Hoffmann) submitted - Ozone disables glutathiones as redox probe on biosurfaces (with S. Enami, and M. R. Hoffmann), submitted - HONO emissions from snow surfaces (with H. Beine, A. Amoroso, G. Esposito, M. Montagnoli and M. R. Hoffmann) Environmental Research Letters, in press - Anion fractionation and reactivity at air/water:methanol interfaces. Implications for the origin of Hofmeister effects (with Jie Cheng and M. R. Hoffmann) *Journal of Physical Chemistry B, 112 (2008) 7157.* - Acidity enhances formation of a persistent ozonide at aqueous ascorbate/ozone gas interfaces (with S. Enami, and M. R. Hoffmann), *Proceedings of the National Academy of Sciences U.S.A.* 105 (2008) 7365. - Ozonolysis of uric acid at the air/water interface (with S. Enami, and M. R. Hoffmann) *Journal of Physical Chemistry B, 112 (2008) 4153.* -Mass spectrometry of interfacial layers during fast aqueous aerosol/ozone gas reactions of atmospheric interest (with S. Enami, J. Cheng, C. D. Vecitis, and M. R. Hoffmann) *Chemical Physics Letters, 455* (2008) 316. -Electrospray Mass Spectrometric Detection of Products and Short-Lived Intermediates in Aqueous Aerosol Microdroplets Exposed to a Reactive Gas (with S. Enami, J. Cheng, C. D. Vecitis, and M. R. Hoffmann) *Journal of Physical Chemistry A, 111 (2007) 13032.* -Global Inorganic Source of Atmospheric Bromine (with S. Enami, J. Cheng, C. D. Vecitis, and M. R. Hoffmann) *Journal of Physical Chemistry A, 111 (2007) 8749.* - Photolysis of Pyruvic Acid in Ice. Possible Relevance to CO and CO₂ Ice Core Record Anomalies (with M. I. Guzman, and M. R. Hoffmann) *Journal of Geophysical Research* 112 (2007) D10123, doi:10.1029/2006JD007886. -Experimental Anion Affinities for the Air/Water Interface (with J. Cheng, C. D. Vecitis, and M. R. Hoffmann) *Journal of Physical Chemistry B,* 110 (2006) 25598. - Sonochemical Decomposition of Phenol: Evidence for a Synergistic Effect of Ozone and Ultrasound for the Elimination of Total Organic Carbon from Water (with T. M Lesko and M. R. Hoffmann) Environmental Science and Technology, 40 (2006) 6818. -Cooperative Hydration of Pyruvic Acid in Ice (M. I. Guzman, L. Hildebrandt and M. R. Hoffmann) *Journal of the American Chemical Society,* 128 (2006) 10621. -Acidity of Frozen Electrolyte Solutions (with C. Robinson, C. S. Boxe, and M. R. Hoffmann) *Journal of Physical Chemistry B,* 110 (2006) 7613. - Photoinduced Oligomerization of Aqueous Pyruvic Acid (with M. I. Guzman, and M. R. Hoffmann) *Journal of Physical Chemistry A* 110 (2006) 3619. - Kinetics of NO and NO₂Evolution from Illuminated Frozen Nitrate Solutions (with C. S. Boxe, M. R. Hoffmann, I. Perez, J. G. Murphy, and R. C. Cohen) *Journal of Physical Chemistry A* 110 (2006) 3578. - Photogeneration of Distant Radical Pairs in Frozen Pyruvic Acid Glasses (with M. I. Guzman, and M. R. Hoffmann) *Journal of Physical Chemistry A* 110 (2006) 931. - Photochemical Production and Release of Gaseous NO₂ from Nitrate-doped Water Ice (with C. S. Boxe, M. R. Hoffmann, J. G. Murphy, P. J. Wooldridge, T. H. Bertram and R. C. Cohen) *Journal of Physical Chemistry A, 109* (2005) 8520. - Oxygen Isotopic Fractionation in the Photochemistry of Nitrate in Water and Ice (with J. McCabe, C. S. Boxe, M. R. Hoffmann and M. Thiemens) Journal of Geophysical Research, 110 (2005) D15310. - Oxidative Power of Nitrogen-Doped TiO₂ Photocatalysts under Visible Illumination (with M. Mrowetz, W. Balcerski, and M. R. Hoffmann) Journal of Physical Chemistry B, 108 (2004) 17269. - Electronic Spectra of Carbonyl Sulfide Sulfur Isotopologues (with F.-Y. Leung and M. R. Hoffmann) Environmental Chemistry, 1 (2004) 44. - Hydrogen Isotope Effects and Mechanism of Aqueous Ozone and Peroxone Decompositions (with T. M. Lesko, and M. R. Hoffmann) Journal of the American Chemical Society, 126 (2004) 4432. - Multiscale Ice Fluidity in NO_x Photodesorption from Frozen Nitrate Solutions (with C. S. Boxe, M. R. Hoffmann, D. Tan, J. Mastromarino, S. T. Sandholm, and D. D. Davis) Journal of Physical Chemistry A, 107 (2003) 11409. *- Soluble Sunscreens Fully Protect E.coli from Disinfection by Electrohydraulic Discharges. (with W.-K Ching, and M. R. Hoffmann) Environmental Science and Technology,* 37 (2003) 4901.** - Timescales and pH-dependences of the redox processes determining the photocatalytic efficiency of TiO₂ nanoparticles from periodic illumination experiments in the stochastic regime (with C. J. G. Cornu, and M. R. Hoffmann) Journal of Physical Chemistry B, 107 (2003) 3156. - In situ photolysis of deep ice core contaminants by Çerenkov radiation of cosmic origin (with M. R. Hoffmann) Geophysical Research Letters, *30 (4) (2003) 1195. (Science Editor's Choice*, 21 March 2003**)
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Agustín J. Colussi