Superfund Research Program

Lavrent Khachatryan

Louisiana State University
404 Choppin
Baton Rouge, Louisiana 70803
Phone: 225-578-4417
Email: lkhach1@lsu.edu

Projects

• Louisiana State University: Activation, Sensing, and Prevention of Formation EPFRs in Thermal Treatment of Superfund Wastes (2011-2025)
• Louisiana State University: Materials Core (2011-2025)
• Louisiana State University: The Role of Iron in Formation of Dioxins and Persistent Free Radicals (ARRA Funded) (2009-2011)

Publications

2024

• Khachatryan L, Rezk M, Nde D, Hasan F, Lomnicki S, Boldor D, Cook R, Sprunger PT, Halland R, Cormier SA. 2024. New features of laboratory-generated EPFRs from 1,2-dichlorobenzene (DCB) and 2-monochlorophenol (MCP). ACS Omega doi:10.1021/acsomega.3c08271

2023

• Aryal A, Noel A, Khachatryan L, Cormier SA, Chowdhury PH, Penn A, Dugas TR, Harmon AC. 2023. Environmentally persistent free radicals: Methods for combustion generation, whole-body inhalation and assessing cardiopulmonary consequences. Environ Pollut 334:122183. doi:10.1016/j.envpol.2023.122183 PMID:37442324
• Yamamoto A, Sly PD, Chew KY, Khachatryan L, Begum N, Yeo AJ, Vu LD, Short KR, Cormier SA, Fantino E. 2023. Environmentally persistent free radicals enhance SARS-CoV-2 replication in respiratory epithelium. Exp Biol Med (Maywood) doi:10.1177/15353702221142616 PMID:36628928 PMCID:PMC9836833

2022

• Khachatryan L, Barekati-Goudarzi M, Asatryan R, Ozarowski A, Boldor D, Lomnicki S, Cormier SA. 2022. Metal-free Biomass-Derived Environmentally Persistent Free Radicals (Bio-EPFRs) from lignin pyrolysis. ACS Omega 7(34):30241-30249. doi:10.1021/acsomega.2c03381 PMID:36061701 PMCID:PMC9434622

2021

• Yamamoto A, Yeo AJ, Sly PD, Cormier SA, Lomnicki S, Khachatryan L, Fantino E. 2021. The effect of combustion generated environmentally persistent free radicals on well-differentiated human airway epithelial cells. Am J Respir Crit Care Med 203:

2018

• Vejerano E, Rao G, Khachatryan L, Cormier SA, Lomnicki S. 2018. Environmentally persistent free radicals: insights on a new class of pollutants. Environ Sci Technol 52:2468-2481. doi:10.1021/acs.est.7b04439 PMID:29443514

2016

• Nwosu UG, Khachatryan L, Youm SG, Roy A, dela Cruz AL, Nesterov EE, Dellinger B, Cook RL. 2016. Model system study of environmentally persistent free radicals formation in a semiconducting polymer modified copper clay system at ambient temperature. RSC Adv 6(49):43453-43462. PMID:28670444 PMCID:PMC5489243

2015

• Herring M, Khachatryan L, Dellinger B. 2015. Speciation of iron (III) oxide nanoparticles and other paramagnetic intermediates during high-temperature oxidative pyrolysis of 1-methylnaphthalene. World Acad Sci Eng Technol 9(7):804-812. PMID:26413257 PMCID:PMC4581597

2014

• Gehling W, Khachatryan L, Dellinger B. 2014. Hydroxyl radical generation from environmentally persistent free radicals (EPFRs) in PM25. Environ Sci Technol 48(8):4266-4272. doi:10.1021/es401770y PMID:24004313 PMCID:PMC4308723
• Khachatryan L, McFerrin CA, Hall RW, Dellinger B. 2014. Environmentally persistent free radicals (EPFRs). 3. Free versus bound hydroxyl radicals in EPFR aqueous solutions. Environ Sci Technol 48(16):9220-9226. doi:10.1021/es501158r PMID:25036238 PMCID:PMC4140529
• Kiruri LW, Khachatryan L, Dellinger B, Lomnicki S. 2014. Effect of copper oxide concentration on the formation and persistency of environmentally persistent free radicals (EPFRs) in particulates. Environ Sci Technol 48(4):2212-2217. doi:10.1021/es404013g PMID:24437381 PMCID:PMC3983329

2013

• Herring M, Khachatryan L, Lomnicki S, Dellinger B. 2013. Paramagnetic centers in particulate formed from the oxidative pyrolysis of 1-methylnaphthalene in the presence of Fe(lll)₂0₃ nanoparticles. Combustion and Flame 160(12):2996-3003. doi:10.1016/j.combustflame.2013.06.025 PMID:25673882 PMCID:PMC4321761
• Maskos Z, Khachatryan L, Dellinger B. 2013. Role of the filters in the formation and stabilization of semiquinone radicals collected from cigarette smoke. Energy Fuels 27(9):5506-5512. doi:10.1021/ef4010253 PMID:24265513 PMCID:PMC3831374

2012

• Khachatryan L, McFerrin CA, Dellinger B. 2012. Free vs. bound hydroxyl radicals generated by environmentally persistent free radicals in aqueous solutions. Free Radic Biol Med 53:S149. doi:10.1016/j.freeradbiomed.2012.10.404

2011

• Khachatryan L, Dellinger B. 2011. Environmentally persistent free radicals (EPFRs)-2. Are free hydroxyl radicals generated in aqueous solutions?. Environ Sci Technol 45:9232-9239. doi:10.1021/es201702q PMID:21942783 PMCID:PMC3236504 (Completed with ARRA Funds)
• Khachatryan L, Vejerano E, Lomnicki S, Dellinger B. 2011. Environmentally persistent free radicals (EPFRs). 1. Generation of reactive oxygen species in aqueous solutions. Environ Sci Technol 45:8559-8566. doi:10.1021/es201309c PMID:21823585 PMCID:PMC3230252 (Completed with ARRA Funds)

2010

• Khachatryan L, Burcat A, Dellinger B. 2010. The role of chlorine atoms and hydroxyl radicals in the formation of PCDDs from the oxidative pyrolysis of 2,4,6-trichlorophenol. Int J Chem Kinet 42:90-97. doi:10.1002/kin.20461

2007

• Khachatryan L, Lomnicki S, Dellinger B. 2007. An expanded reaction kinetic model of the CuO surface-mediated formation of PCDD/F from pyrolysis of 2-chlorophenol. Chemosphere 68:1741-1750. doi:10.1016/j.chemosphere.2007.03.042 PMID:17509655 PMCID:PMC4273312