Marcelo Guzman
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Associate Professor

Analytical
Appalachian Center
Biological
Chemistry
Latin American, Caribbean, and Latino Studies
Organic
Physical

marcelo.guzman@uky.edu

121 Chemistry-Physics Building

859-323-2892

Guzman Lab Website

Google Scholar

ResearchGate

Editorial Work: "Atmospheric Measurements with UAS"

Research Interests:

Environmental Photochemistry
Interfacial oxidations
Environmental monitoring
Prebiotic chemistry
Photocatalytic CO2 reduction
Environmental Chemistry

Education

Ph.D. California Institute of Technology 2002-2006
Postdoctoral Fellow - Harvard University 2007-2010

Biography

Marcelo I. Guzman is an Associate Professor of Chemistry in the University of Kentucky, where he teaches analytical and environmental chemistry courses. In 2013, he received a NSF CAREER award. He earned his Ph.D. at the California Institute of Technology (Caltech, 2007) working on ice chemistry with Michael R. Hoffmann. In 2002, he was an Andrew W. Mellon Fellow at the Metropolitan Museum of Art (New York) working on Paper and Photograph Conservation in the Sherman Fairchild Center. For his postdoctoral experience he joined the Origins of Life Initiative at Harvard University as an Origins Fellow working with Scot T. Martin.

Research

The Guzman group studies processes occurring in environmental interfaces and is interested in research problems of interdisciplinary scope. We are currently investigating photooxidative reactions of organic molecules of environmental relevance to understand the processing of pollutants "on the surface of" and "in" atmospheric aerosols, clouds, and fogs. Some of our recent accomplishments include to have provided comprehensive photochemical and heterogeneous oxidation reaction mechanisms for the processing of dissolved organic matter molecular probes "in" and "on the surface of" aqueous aerosol mimics. The laboratory applies soft ionization methods such as online electrospray ionization mass spectrometry (OESI-MS), multiple chromatographic separations, one and two dimensional nuclear magnetic resonance, and various spectroscopies to contrast the fast oxidation of biomass burning and combustion emissions at the air-water interface versus the air-solid interface. One of our latest environmental chemistry developments is the creation of integrated unmanned aerial systems for environmental monitoring of trace gases. We are also interested on the potential use of photocatalysis for fuel production and to jumpstart a prebiotic chemical cycle related to the origin of life. Because past work has focused on the study of reactions in ice matrices, the laboratory is also experienced in ice chemistry. Learn more about our work at the group website: http://www.guzmanlab.com/research

Recent news:

Check out our last press release at UKNOW, A&S, Phys.org, Eurekalert.org, Newswise.com, Sciencenewsline.com, enn.com, Sciencedaily.com, or R&D.

Positions Available:

We are searching for inspired and self-motivated graduate students interested in joining the lab. Please forward an application letter, a list of three references and CV to Professor Marcelo I. Guzman (marcelo dot guzman at uky dot edu; Department of Chemistry, University of Kentucky, Lexington, KY 40506-0055). If you are currently a graduate student at UK or an undergraduate interested in registering for CHE 395, feel free to send me an email to schedule a meeting so we can talk about the exciting projects in the lab.

Graduate Training

Physical and Environmental Organic Chemistry

Selected Publications:

Cross Photoreaction of Glyoxylic and Pyruvic Acids in Model Aqueous Aerosol. S.-S. Xia, A.J. Eugene, and M.I. Guzman. Journal of Physical Chemistry A (2018), 122, 6457-6466, DOI: 10.1021/acs.jpca.8b05724. PDF
Enhanced Acidity of Acetic and Pyruvic Acids on the Surface of Water. A.J. Eugene, E.A. Pillar, A.J. Colussi, and M.I. Guzman. Langmuir (2018), 34, 9307-9313, DOI: 10.1021/acs.langmuir.8b01606. PDF
Reply to "Comment on 'Reactivity of Ketyl and Acetyl Radicals from Direct Solar Actinic Photolysis of Aqueous Pyruvic Acid.'" A.J. Eugene and M.I. Guzman. Journal of Physical Chemistry A (2017), 121, 8741-8744, DOI: 10.1021/acs.jpca.7b08273. PDF
Unmanned Aerial Systems for Monitoring Trace Tropospheric Gases. T.J. Schuyler and M.I. Guzman, Atmosphere (2017), 8 (10), 206, DOI:10.3390/atmos8100206. PDF
Cu₂O/TiO₂ heterostructures for CO₂ reduction through a direct Z-scheme: Protecting Cu₂O from photocorrosion. M.E. Aguirre, R. Zhou, A.J. Eugene, M.I. Guzman, and M.A. Grela. Applied Catalysis B: Environmental (2017), 217, 485-493, DOI: 10.1016/j.apcatb.2017.05.058. PDF
Oxidation of Substituted Catechols at the Air-Water Interface: Production of Carboxylic Acids, Quinones, and Polyphenols. E.A. Pillar and M.I. Guzman. Environmental Science and Technology (2017), 51, 4951-4959, DOI: 10.1021/acs.est.7b00232. PDF
Reactivity of Ketyl and Acetyl Radicals from Direct Solar Actinic Photolysis of Aqueous Pyruvic Acid. A.J. Eugene and M.I. Guzman. Journal of Physical Chemistry A (2017), 121, 2924-2935, DOI: 10.1021/acs.jpca.6b11916. PDF
Catalyzed Synthesis of Zinc Clays by Prebiotic Central Metabolites. R. Zhou, K. Basu, H. Hartman, C.J. Matocha, S.K. Sears, H. Vali, and M.I. Guzman. Scientific Reports (2017), 7, 533. DOI: 10.1038/s41598-017-00558-1. PDF
Nitrate Radicals and Biogenic Volatile Organic Compounds: Oxidation, Mechanisms and Organic Aerosol. N.L. Ng, S.S. Brown, A.T. Archibald, E. Atlas, R.C. Cohen, J.N. Crowley, D.A. Day, N.M. Donahue, J.L. Fry, H. Fuchs, R.J. Griffin, M.I. Guzman, H. Herrmann, A. Hodzic, Y. Iinuma, J.L. Jimenez, A. Kiendler-Scharr, B.H. Lee, D.J. Luecken, J. Mao, R. McLaren, A. Mutzel, H.D. Osthoff, B. Ouyang, B. Picquet-Varrault, U. Platt, H.O.T. Pye, Y. Rudich, R.H. Schwantes, M. Shiraiwa, J. Stutz, J.A. Thornton, A. Tilgner, B.J. Williams, R.A. Zaveri. Atmospheric Chemistry and Physics (2017), DOI: 10.5194/acp-17-2103-2017. PDF
Aqueous Photochemistry of Glyoxylic Acid. A.J. Eugene, S.-S. Xia, and M.I. Guzman. Journal of Physical Chemistry A (2016), 120, 3817-3826, DOI: 10.1021/acs.jpca.6b00225. PDF
Photocatalytic Reduction of Fumarate to Succinate on ZnS Mineral Surfaces. R. Zhou and M.I. Guzman. Journal of Physical Chemistry C (2016), 120, 7349-7357, DOI: 10.1021/acs.jpcc.5b12380, 2016. PDF
Heterogeneous Oxidation of Catechol. E.A. Pillar, R. Zhou, and M.I. Guzman. Journal of Physical Chemistry A (2015), 119, 10349-10359, DOI: 10.1021/acs.jpca.5b07914. PDF
Secondary Organic Aerosol (SOA) Formation from β-pinene + NO₃ System: Effects of Humidity and Peroxy Radical Fate. C.M. Boyd, J. Sanchez, L. Xu, A.J. Eugene, T. Nah, W.-Y. Tuet, M.I. Guzman, and N.L. Ng. Atmospheric Chemistry and Physics (2015), 15, 7497–7522, DOI: 10.5194/acp-15-7497-2015. PDF
Catechol oxidation by ozone and hydroxyl radicals at the air-water interface. E.A. Pillar, R.C. Camm, and M.I. Guzman. Environmental Science & Technology (2014), 48, 14352-14360, DOI: 10.1021/es504094x. PDF
CO₂ Reduction under Periodic Illumination of ZnS. R.-X. Zhou and M.I. Guzman. Journal of Physical Chemistry C (2014), 118, 11649-11656, DOI: 10.1021/jp4126039. PDF
A review of air-ice chemical and physical interactions (AICI): liquids, quasi-liquids, and solids in snow. T. Bartels-Rausch, H.-W. Jacobi, T.F. Kahan, J.L. Thomas, E.S. Thomson, J.P.D. Abbatt, M. Ammann, J.R. Blackford, H. Bluhm, C. Boxe, F. Domine, M.M. Frey, I. Gladich, M.I. Guzman, D. Heger, Th. Huthwelker, P. Klan, W.F. Kuhs, M.H. Kuo, S. Maus, S.G. Moussa, V.F. McNeill, J.T. Newberg, J.B.C. Pettersson, M. Roeselova, J.R. Sodeau. Atmospheric Chemistry and Physics (2014), 14, 1587-1633, DOI: 10.5194/acp-14-1587-2014. PDF or PDF
Negative production of acetoin in the photochemistry of aqueous pyruvic acid. A.J. Eugene, S.-S. Xia, and M.I. Guzman. Proceedings of the National Academy of Science of the United States of America (2013), 110, E4274-E4275, DOI: 10.1073/pnas.1313991110. PDF
Conversion of iodide to hypoiodous acid and iodine in aqueous microdroplets exposed to ozone. E.A. Pillar, M.I. Guzman, and J.M. Rodriguez. Environmental Science & Technology (2013), 47, 10971-10979, DOI: 10.1021/es401700h. PDF
Organics in Environmental Ices: Sources, Chemistry, and Impacts. V.F. McNeill, A.M. Grannas, J.P.D. Abbatt, M. Ammann, P. Ariya, T. Bartels-Rausch, F. Domine, D.J. Donaldson, M.I. Guzman, D. Heger, T.F. Kahan, P. Klan, S. Masclin, C. Toubin, D. Voisin. Atmospheric Chemistry and Physics (2012), 12, 9653-9678, DOI: 10.5194/acp-12-9653-2012. PDF
Chemisorption on Semiconductors: the Role of Quantum Corrections on the Space Charge Regions in Multiple Dimensions. F. Ciucci, C. de Falco, M.I. Guzman, S. Lee, and T. Honda. Applied Physics Letters (2012), 100, 183106, DOI: 10.1063/1.4709483. PDF
Concentration Effects and Ion Properties Controlling the Fractionation of Halides during Aerosol Formation. M.I. Guzman, R.R. Athalye, and J.M. Rodriguez. Journal of Physical Chemistry A (2012), 116, 5428-5435, DOI: 10.1021/jp3011316. PDF
Abiotic Photosynthesis: From Prebiotic Chemistry to Metabolism. M.I. Guzman in Origins of Life: The Primal Selforganization. R. Egel et al. (eds.), Springer Verlag, Berlin-Heidelberg (2011), pp 85-105, DOI: 10.1007/978-3-642-21625-1_4, ISBN 978-3-642-21624-4.
Second-generation products contribute substantially to the particle-phase organic material produced by β-caryophyllene ozonolysis. Y.J. Li, Q. Chen, M.I. Guzman, C.K. Chan, and S.T. Martin. Atmospheric Chemistry and Physics (2011), 11, 121-132, DOI: 10.5194/acp-11-121-2011. PDF
From Prebiotic Chemistry to Metabolic Cycles. M.I. Guzman in Astrobiology: From the Big Bang to Civilizations. G.A. Lemarchand and G.Tancredi (ed.), (2010), pp. 223-247. ISBN 978-92-9089-163-5. Montevideo, UNESCO. PDF
Photo-Production of Lactate from Glyoxylate: How Minerals Can Facilitate Energy Storage in a Prebiotic World. M.I. Guzman and S.T. Martin. Chemical Communications (2010), 46, 2265-2267, DOI:10.1039/b924179e. PDF
Thermochromism of Model Organic Aerosol Matter. A.G. Rincon, M.I. Guzman, M.R. Hoffmann, and A.J. Colussi. Journal of Physical Chemistry Letters (2010), 1, 368-373, DOI: 10.1021/jz900186e. PDF
Optical absorptivity versus molecular composition of model organic aerosol matter. A.G. Rincon, M.I. Guzman, M.R. Hoffmann, and A.J. Colussi. Journal of Physical Chemistry A (2009), 113, 10512-10520, DOI: 10.1021/jp904644n. PDF
Prebiotic Metabolism: Production by Mineral Photoelectrochemistry of α-Ketocarboxylic Acids in the Reductive Tricarboxylic Acid Cycle. M.I. Guzman and S.T. Martin. Astrobiology (2009), 9, 833-842, DOI:10.1089/ast.2009.0356. PDF
Synthesis of Pyrimidines and Triazines in Ice: Implications for the Prebiotic Chemistry of Nucleobases. C. Menor-Salván, M. Ruiz-Bermejo, M.I. Guzman, S. Osuna-Esteban, S. Veintemillas-Verdaguer. Chemistry-A European Journal (2009), 15, 4411-4418, DOI: 10.1002/chem.200802656. PDF
Oxaloacetate-to-Malate Conversion by Mineral Photoelectrochemistry: Implications for the Viability of the Reductive Tricarboxylic Acid Cycle in Prebiotic Chemistry. M.I. Guzman and S.T. Martin. International Journal of Astrobiology (2008), 7, 271-278, DOI: 10.1017/S1473550408004291. PDF
An overview of snow photochemistry: evidence, mechanisms and impacts. A.M. Grannas, A.E. Jones, J. Dibb, M. Ammann, C. Anastasio, H. Beine, M. Bergin, J. Bottenheim, C.S. Boxe, G. Carver, J.H. Crawford, F. Domine, M.M. Frey, M.I. Guzman, D. Heard, D. Helmig, M.R. Hoffmann, R.E. Honrath, L.G. Huey, M. Hutterli, H.W. Jacobi, P. Klan, B. Lefer, J. McConnell, J. Plane, R. Sander, J. Savarino, P.B. Shepson, W.R. Simpson, J. Sodeau, R. von Glasgow, R. Weller, E.W. Wolff, T. Zhu. Atmospheric Chemistry and Physics (2007), 7, 4329-4373, DOI: 10.5194/acp-7-4329-2007. PDF
Photolysis of Pyruvic Acid in Ice: Possible Relevance to CO and CO₂ Ice Core Record Anomalies. Guzman M.I., M.R. Hoffmann, and A.J. Colussi. Journal of Geophysical Research (2007), 112, D10123, DOI: 10.1029/2006JD007886. PDF
Cooperative Hydration of Pyruvic Acid in Ice. M.I. Guzman, L. Hildebrandt, A.J. Colussi, and M.R. Hoffmann. Journal of the American Chemical Society (2006), 128, 10621-10624, DOI: 10.1021/ja062039v. PDF
Acidity of Frozen Electrolyte Solutions. C. Robinson, C.S. Boxe, M.I. Guzman, A.J. Colussi, and M.R. Hoffmann. Journal of Physical Chemistry B (2006), 110; 7613-7616, DOI: 10.1021/jp061169n. PDF
Photoinduced Oligomerization of Aqueous Pyruvic Acid. M.I. Guzman, A.J. Colussi, and M.R. Hoffmann. Journal of Physical Chemistry A (2006), 110, 3619-3626, DOI: 10.1021/jp056097z. PDF
Photogeneration of Distant Radical Pairs in Aqueous Pyruvic Acid Glasses. M.I. Guzman, A.J. Colussi, and M.R. Hoffmann. Journal of Physical Chemistry A (2006), 110; 931-935, DOI: 10.1021/jp053449t. PDF
Characterization of the effect of white lead on some properties of proteinaceous binding media. SA Centeno, M.I. Guzman, A. Yamazaki-Kleps and C.O. Della Védova. Journal of the American Institute for Conservation (2004), 43, 139-150, DOI: 10.2307/4129649. PDF
Synthesis , stereochemistry and absolute configuration of deodarols and deodarones. M.B. Villecco, L.R. Hernandez, M.I. Guzman, C.A.N. Catalán, M.A. Bucio and P. Joseph-Nathan. Tetrahedron: Asymmetry (2001), 12 (21), 2947-2953, DOI: 10.1016/S0957-4166(01)00521-3. PDF