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Gediminas “Gedi” Mainelis Ph.D.

Professor Rutgers University, School of Environmental and Biological SciencesEOHSI – Exposure Science and Epidemiology
Work Department of Environmental Sciences 14 College Farm Road New Brunswick NJ 08901 Work Phone: 848-932-5712
Photo of Gediminas “Gedi” Mainelis Ph.D.

Biographical Info

Research Areas

  • Development of aerosol/bioaerosol sampling, control, and generation methods
  • Investigation of aerosol and bioaerosol monitors’ performance
  • Integration of bioaerosol sampling tools with advanced microbiological analysis techniques Aerosol exposure assessment
    Indoor air quality
  • Exposure and health effects of nanoparticles

Research Highlights

  • Investigated the potential release of particles from nanotechnology-based consumer products and showed that their use could result in inhalation exposures to nanoparticles and their agglomerates
  • Developed a novel electrostatics-based collector for biological aerosols where airborne particles could be captured into very small amounts of liquid (5-40 microliters) thus allowing to measure low concentrations of airborne microorganisms.
  • Investigated indoor exposures of young children to airborne contaminants using a novel robotic sampling platform. The research shows that the current exposure assessment methods using stationary samplers may underestimate exposures by a factor of 3.

Scholarly Activities

  • Co-Chair of the “Health-Related Aerosol Working Group” of the American Association for Aerosol Research for 2010-2011.
  • Member, Aerosol Technology Committee, American Industrial Hygiene Association.
  • Member, Stakeholders’ Panel on Agent Detection Assays (SPADA), organized by AOAC International, contracted by the Department of Homeland Security’s Chemical/Biological Research and Development Section (CBRDS)
  • Reviewer for scholarly journals

Recent Publications

  1. Son, Y, Mishin, V, Laskin, JD, Mainelis, G, Wackowski, OA, Delnevo, C, Schwander, S, Khlystov, A, Samburova, V, Meng, Q et al.. Hydroxyl Radicals in E-Cigarette Vapor and E-Vapor Oxidative Potentials under Different Vaping Patterns. Chem. Res. Toxicol. 2019;32 (6):1087-1095. doi: 10.1021/acs.chemrestox.8b00400. PubMed PMID:30977360 PubMed Central PMC6579624
  2. Zhou, J, Mainelis, G, Weisel, CP. Pyrethroid levels in toddlers' breathing zone following a simulated indoor pesticide spray. J Expo Sci Environ Epidemiol. 2019;29 (3):389-396. doi: 10.1038/s41370-018-0065-6. PubMed PMID:30185948
  3. Son, Y, Wackowski, O, Weisel, C, Schwander, S, Mainelis, G, Delnevo, C, Meng, Q. Evaluation of E-Vapor Nicotine and Nicotyrine Concentrations under Various E-Liquid Compositions, Device Settings, and Vaping Topographies. Chem. Res. Toxicol. 2018;31 (9):861-868. doi: 10.1021/acs.chemrestox.8b00063. PubMed PMID:30080399 PubMed Central PMC6350771
  4. Therkorn, J, Calderon, L, Cartledge, B, Thomas, N, Majestic, B, Mainelis, G. Inactivation of Pure Bacterial Biofilms by Impaction of Aerosolized Consumer Products Containing Nanoparticulate Metals. Environ Sci Nano. 2018;5 (2):544-555. doi: 10.1039/C7EN00972K. PubMed PMID:29755737 PubMed Central PMC5944860
  5. Zhen, H, Krumins, V, Fennell, DE, Mainelis, G. Analysis of airborne microbial communities using 16S ribosomal RNA: Potential bias due to air sampling stress. Sci. Total Environ. 2018;621 :939-947. doi: 10.1016/j.scitotenv.2017.10.154. PubMed PMID:29079080 PubMed Central PMC5805565
  6. Han, T, Mainelis, G. Design and Development of an Electrostatic Screen Battery for Emission Control (ESBEC). J Aerosol Sci. 2017;107 :74-83. doi: 10.1016/j.jaerosci.2017.02.008. PubMed PMID:28983124 PubMed Central PMC5624328
  7. Therkorn, J, Thomas, N, Scheinbeim, J, Mainelis, G. Field Performance of a Novel Passive Bioaerosol Sampler using Polarized Ferroelectric Polymer Films. Aerosol Sci Technol. 2017;51 (7):787-800. doi: 10.1080/02786826.2017.1316830. PubMed PMID:30774180 PubMed Central PMC6377157
  8. Wang, Z, Calderón, L, Patton, AP, Sorensen Allacci, M, Senick, J, Wener, R, Andrews, CJ, Mainelis, G. Comparison of real-time instruments and gravimetric method when measuring particulate matter in a residential building. J Air Waste Manag Assoc. 2016;66 (11):1109-1120. doi: 10.1080/10962247.2016.1201022. PubMed PMID:27333205 PubMed Central PMC5153892
  9. Zhang, JJ, Lee, KB, He, L, Seiffert, J, Subramaniam, P, Yang, L, Chen, S, Maguire, P, Mainelis, G, Schwander, S et al.. Effects of a nanoceria fuel additive on the physicochemical properties of diesel exhaust particles. Environ Sci Process Impacts. 2016;18 (10):1333-1342. doi: 10.1039/c6em00337k. PubMed PMID:27711787
  10. Sagona, JA, Shalat, SL, Wang, Z, Ramagopal, M, Black, K, Hernandez, M, Mainelis, G. Comparison of particulate matter exposure estimates in young children from personal sampling equipment and a robotic sampler. J Expo Sci Environ Epidemiol. 2017;27 (3):299-305. doi: 10.1038/jes.2016.24. PubMed PMID:27168394 PubMed Central PMC5201446
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Categories: Faculty, Exposure Science and Epidemiology
Updated 11 months ago.
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