Oxidative stress (OS) represents a threat to the chemical integrity of biomolecules including
lipids, proteins, and DNA. The associated molecular damage frequently results in serious …

Oxidative stress, which is frequently induced by an overproduction of free radicals (FR),
poses a high risk to human health. Thus, finding efficient strategies for scavenging FR is a …

Oxidative stress is frequently caused by an excess of free radicals and has been associated
with a wide variety of health disorders. Therefore, finding strategies for scavenging free …

It is well established that exposure of DNA to high-energy radiation results in a variety of
physical and chemical changes in DNA including strand breakage, mutation, and DNA …

Covering state-of-the-art advances, novel applications, and future perspectives, this volume
presents new directions on the basic studies of charged particle and photon interactions with …

This work reports ESR studies that identify the favored site of deprotonation of the guanine
cation radical (G•+) in an aqueous medium at 77 K. Using ESR and UV− visible …

The chemical repair of radical-damaged DNA by glutathione in aqueous solution has been
studied using density functional theory. Two main mechanisms were investigated: the single …

Cation radicals of guanine (G•+), 9-methylguanine (MG•+), and guanosine (rG•+) were
generated by dissociative oxidation of gas-phase copper complexes and characterized by …

This work presents evidence that photo-excitation of guanine radical cations results in high
yields of deoxyribose sugar radicals in DNA, guanine deoxyribonucleosides and …

Ionizing radiation produces DNA-cation radical (hole) and DNA-anion radical formation by
random direct ionization of DNA and its microenvironments (eg, layer of hydration) as well …