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Exposure Research

Human Exposure & Atmospheric Sciences Staff

Ivan R. Piletic

Title: Postdoctoral Physical Scientist

EPA Division: Human Exposure and Atmospheric Sciences Division

EPA Branch: Process Modeling Research Branch

Narrative:
Ivan’s current research involves the study of organic aerosols with novel experimental and computational approaches. In the laboratory, chromatography and mass spectrometry are supplemented with fluorescence microscopy and nuclear magnetic resonance (NMR) spectroscopy to provide a comprehensive view of the physical and chemical characteristics of aerosol particles. Computational efforts using quantum chemistry algorithms aid structural identification by calculating specific spectral signatures. The full power of computational chemistry is currently being applied to determine reaction kinetics, branching ratios and yields of important atmospheric reactions. Particular focus is being placed on elucidating important particle phase reactions which drive particulate matter growth and stability.

Education/Training:

  • Ph.D., Chemistry, Stanford University, Stanford, CA, 2006
  • B.S., Chemistry and Mathematics, McMaster University, Hamilton, ON, Canada, 2000

Professional Experience:

  • Postdoctoral Physical Scientist, USEPA, Research Triangle Park, NC 2010-present
  • Postdoctoral Chemist, Duke University, Durham, NC 2006-2010

Professional Societies and Affiliations:

  • American Chemical Society
  • American Association for Aerosol Research

Select Presentations:

  • Piletic, I.R., Edney, E.O., Bartolotti, L.J. Computational Study Probing the Potential Energy Surfaces of Acid Catalyzed Particle Phase Reactions. AAAR Conference, Minneapolis Mn., October 2012.
  • Piletic, I.R., Krug, J., Offenberg J.H., Jaoui M., Turlington J.M., Olson D.A., Lewandowski M., Docherty K.S., Kleindienst T.E. Spatial and Seasonal Variations in the Composition of Organic Aerosols Collected During the Cleveland Multiple Air Pollutant Study (CMAPS). AAAR Conference, Orlando Fl., October 2011.

Select Publications:

  • Matthews T.E., Piletic I.R., Selim M.A., Simpson M.J., Warren W.S. 2011. Pump-Probe Imaging Differentiates Melanoma from Melanocytic Nevi. Sci. Transl. Med., 3, 71ra15 (DOI: 10.1126/scitranslmed.3001604).
  • Piletic I.R., Matthews T.E., Warren W.S. 2010. Probing Near-Infrared Photorelaxation Pathways in Eumelanins and Pheomelanins. J. Phys. Chem. A, 114, 11483-11491 (DOI: 10.1021/jp103608d)
  • Piletic I.R., Fischer M.C., Samineni P., Yurtsever G., Warren W.S. 2008. Rapid Pulse Shaping with Homodyne Detection for Measuring Nonlinear Optical Signals. Opt. Lett., 33, 1482-1484 (DOI: 10.1364/OL.33.001482)
  • Piletic I.R., Moilanen D.E., Spry D.B., Levinger N.E., Fayer M.D. 2006. Testing the Core/Shell Model of Nanoconfined Water in Reverse Micelles using Linear and Nonlinear IR Spectroscopy. J. Phys. Chem. A, 110, 4985-4999 (DOI: 10.1021/jp061065c)

Published & Presented Research (1999-Present)

Contact Info:
Ivan Piletic
Human Exposure & Atmospheric Sciences Division
National Exposure Research Laboratory
US EPA Office of Research and Development
109 TW Alexander Drive
Research Triangle Park, NC 27709
Telephone: 919-541-5031
Email: piletic.ivan@epa.gov

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