Results 351 to 360 of about 1,900,673 (403)

The debatable role of singlet oxygen in persulfate-based advanced oxidation processes.

Water Research, 2023
Liangjie Wang, Ke Xiao, Huazhang Zhao
semanticscholar   +1 more source

Ene‐Reactions with Singlet Oxygen

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Oliver Krebs, Waldemar Adam, Tamer El-Idreesy, Axel Griesbeck   +3 more
openaire   +1 more source

Tuning the Structure and Electronic Properties of B-N Fused Dipyridylanthracene and Implications on the Self-Sensitized Reactivity with Singlet Oxygen.

Journal of the American Chemical Society, 2019
We demonstrate that the modification of anthracene with B ← N Lewis pairs at their periphery serves as a highly effective tool to modify the electronic structure with important ramifications on the generation and reactivity toward singlet oxygen.
Kanglei Liu, R. Lalancette, F. Jäkle
semanticscholar   +1 more source

Singlet Oxygen-Induced DNA Damage

Radiation Research, 2006
Singlet oxygen, hydrogen peroxide, hydroxyl radical and hydrogen peroxide are the reactive oxygen species (ROS) considered most responsible for producing oxidative stress in cells and organisms. Singlet oxygen interacts preferentially with guanine to produce 8-oxo-7,8-dihydroguanine and spiroiminodihydantoin. DNA damage due to the latter lesion has not
Han-Chun, DeFedericis, Helen B, Patrzyc, Michael J, Rajecki, Edwin E, Budzinski, Herbert, Iijima, Jean B, Dawidzik, Marianne S, Evans, Kellee F, Greene, Harold C, Box   +8 more
openaire   +2 more sources

Singlet oxygen and biological systems

Chemico-Biological Interactions, 1971
Abstract Singlet oxygen is receiving increasing attention as a reactive species in many chemical and biological systems. It can be generated easily by microwave discharge, chemically or by photosensitized irradiation and also is found to be a common reactive atmospheric pollutant generated by solar radiation.
I R, Politzer, G W, Griffin, J L, Laseter   +2 more
openaire   +2 more sources

Intramolecular Transfer of Singlet Oxygen

Journal of the American Chemical Society, 2015
The intramolecular transfer of energy (FRET) and electrons (Dexter) are of great interest for the scientific community and are well-understood. In contrast, the intramolecular transfer of singlet oxygen ((1)O2), a reactive and short-lived oxygen species, has until now been unknown. This process would be very interesting because (1)O2 plays an important
Klaper, Matthias, Linker, Torsten
openaire   +2 more sources

Singlet-oxygen Generation from A2E¶

Photochemistry and Photobiology, 2003
Singlet-oxygen generation was measured in solutions containing equilibrium mixtures of the retinal lipofuscins, 2-[2, 6-dimethyl-8-(2,6,6-trimethyl-1-cyclohexen-1-yl)- 1E,3E,5E,7Eoctatetraenyl]-1-(2-hydroxyethyl)-4-[4-methyl-6(2,6,6-trimethyl-1-cyclohexen-1-yl)-1E,3E,5E-hexatrienyl]-pyridinium (A2E) and double bond isomer of A2E (iso-A2E), using steady-
Jeffrey R, Kanofsky, Paul D, Sima, Christoph, Richter   +2 more
openaire   +2 more sources

Cytogenetic effects of singlet oxygen

Journal of Photochemistry and Photobiology B: Biology, 1992
Singlet oxygen was generated in the gas phase at atmospheric pressure by the method of heterogeneous photosensitization. In vitro exposure of human lung WI-38 fibroblasts to gas-phase singlet oxygen resulted in sister chromatid exchange.
W C, Eisenberg, K, Taylor, R R, Guerrero
openaire   +2 more sources

Energy‐Free, Singlet Oxygen‐Based Chemodynamic Therapy for Selective Tumor Treatment without Dark Toxicity

Advanced Healthcare Materials, 2019
Traditional singlet oxygen‐based antitumor therapies have been burdened with the necessity of external energy (e.g., light and ultrasound) and harmful dark toxicity.
Yanrui Chen, Jian Deng, Fang Liu, Peipei Dai, Yang An, Z. Wang, Yanjun Zhao   +6 more
semanticscholar   +1 more source

Singlet Oxygen Stress in Microorganisms

2011
Singlet oxygen is the primary agent of photooxidative stress in microorganisms. In photosynthetic microorganisms, sensitized generation by pigments of the photosystems is the main source of singlet oxygen and, in nonphotosynthetic microorganisms, cellular cofactors such as flavins, rhodopsins, quinones, and porphyrins serve as photosensitizer.
J, Glaeser, A M, Nuss, B A, Berghoff, Gabriele, Klug   +3 more
openaire   +2 more sources