Barry Dellinger
Louisiana State University
118 Papers
732 Citations
Barry Dellinger is an academic researcher from Louisiana State University. The author has contributed to research in topics: Radical & Chemistry. The author has an hindex of 41, co-authored 118 publications. Previous affiliations of Barry Dellinger include Texas A&M University.
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Papers
Role of free radicals in the toxicity of airborne fine particulate matter.
Barry Dellinger,William A. Pryor,Rafael Cueto,Giuseppe L. Squadrito,Vijay Hegde,Walter A. Deutsch +5 more
TL;DR: Using electron paramagnetic resonance (EPR), samples of PM2.5 were examined and large quantities of radicals with characteristics similar to semiquinone radicals were found, implicating superoxide radical, hydrogen peroxide, and the hydroxyl radical in the reactions inducing DNA damage.
536
Quinoid redox cycling as a mechanism for sustained free radical generation by inhaled airborne particulate matter
TL;DR: It is hypothesized that semiquinone radicals in PM(2.5) undergo redox cycling, thereby reducing oxygen and generating reactive oxygen species while consuming tissue-reducing equivalents, such as NAD(P)H and ascorbate, which cause oxidative stress at sites of deposition and produce deleterious effects observed in the lung.
503
Formation and stabilization of persistent free radicals
Barry Dellinger,Slawomir M. Lomnicki,Lavrent Khachatryan,Zofia Maskos,Randall W. Hall,Julien Adounkpe,Cheri A. McFerrin,Hieu Truong +7 more
- 01 Jan 2007
TL;DR: It is demonstrated that stable and relatively unreactive "environmentally persistent free radicals (PFRs)" can be readily formed in the post-flame and cool-zone regions of combustion systems and other thermal processes.
Environmentally Persistent Free Radicals (EPFRs). 1. Generation of Reactive Oxygen Species in Aqueous Solutions
TL;DR: The large number of hydroxyl radicals formed per EPFR and monotonic increase of the DMPO-OH spin adduct concentration with incubation time suggest a catalytic cycle of ROS formation.
Copper oxide-based model of persistent free radical formation on combustion-derived particulate matter.
TL;DR: This work proposes a catalytic biochemical cycle for both the particle-associated semiquinone and phenoxyl PFRs that result in the formation of hydroxyl radical and other reactive oxygen species (ROS).
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