Ontology highlight
ABSTRACT:
SUBMITTER: Samuel EL
PROVIDER: S-EPMC4345556 | biostudies-literature | 2015 Feb
REPOSITORIES: biostudies-literature
Proceedings of the National Academy of Sciences of the United States of America 20150209 8
Many diseases are associated with oxidative stress, which occurs when the production of reactive oxygen species (ROS) overwhelms the scavenging ability of an organism. Here, we evaluated the carbon nanoparticle antioxidant properties of poly(ethylene glycolated) hydrophilic carbon clusters (PEG-HCCs) by electron paramagnetic resonance (EPR) spectroscopy, oxygen electrode, and spectrophotometric assays. These carbon nanoparticles have 1 equivalent of stable radical and showed superoxide (O2 (•-)) ...[more]