Results 31 to 40 of about 162,281 (356)

The Antitumor Effect of Singlet Oxygen [PDF]

open access: yesAnticancer Research, 2016
Tumor cells are protected against intercellular apoptosis-inducing signaling through expression of membrane-associated catalase and superoxide dismutase. Exogenous singlet oxygen derived from activated photosensitizers or from cold atmospheric plasma causes local inactivation of protective catalase which is followed by the generation of secondary ...
openaire   +4 more sources

Singlet Oxygen in Antimicrobial Photodynamic Therapy: Photosensitizer-Dependent Production and Decay in E. coli

open access: yesMolecules, 2013
Several families of photosensitizers are currently being scrutinized for antimicrobial photodynamic therapy applications. Differences in physical and photochemical properties can lead to different localization patterns as well as differences in singlet ...
Arménio C. Serra   +6 more
doaj   +1 more source

Direct measurement of singlet oxygen produced by four chlorin-ringed chlorophyll species in acetone solution [PDF]

open access: yes, 2010
We developed an optical system to detect singlet oxygen produced by chlorin-ringed chlorophyll (Chl) species, i.e., Chl a, Chl b, Chl d, and di-vinyl-Chl a, with a high sensitivity and examined the relationship between molecular structures and reaction ...
Mimuro, Mamoru   +2 more
core   +2 more sources

On self-protecting singlets in cuprate superconductors [PDF]

open access: yes, 2003
The basal area (Cu-Cu grid) of the cuprate superconductors not only tends to shrink on hole doping, as expected from single electron quantum chemistry, but exhibits also an electronically incompressible "hump'' around optimum doping n_opt = 0.16.
Röhler, J.
core   +2 more sources

NanoSOSG: A Nanostructured Fluorescent Probe for the Detection of Intracellular Singlet Oxygen [PDF]

open access: yes, 2017
A biocompatible fluorescent nanoprobe for singlet oxygen (1O2) detection in biological systems was designed, synthesized, and characterized, that circumvents many of the limitations of the molecular probe Singlet Oxygen Sensor Green® (SOSG).
Agut, Montserrat   +9 more
core   +4 more sources

Amplified singlet oxygen generation in metallated-porphyrin doped conjugated polymer nanoparticles [PDF]

open access: yes, 2018
We report on the mechanism and efficiencies of singlet oxygen O2(1Δg) generation of nanoparticles (NP) of the conjugated polymer (CP) poly(9,9-dioctylfluorene-alt-benzothiadiazole) (F8BT) doped with platinum octaethylporphyrin (PtOEP) suspended in water.
Chesta, Carlos Alberto   +7 more
core   +2 more sources

Suppressing Effect of 2-Nitrobenzaldehyde on Singlet Oxygen Generation, Fatty Acid Photooxidation, and Dye-Sensitizer Degradation

open access: yesAntioxidants, 2018
2-Nitrobenzaldehyde was found to efficiently block singlet oxygen generation in a series of different test samples upon exposure to UV and visible light under aerobic conditions.
Mahdi Hajimohammadi   +3 more
doaj   +1 more source

Bactericidal action of photogenerated singlet oxygen from photosensitizers used in plaque disclosing agents. [PDF]

open access: yesPLoS ONE, 2012
BACKGROUND: Photodynamic therapy (PDT) has been suggested as an efficient clinical approach for the treatment of dental plaque in the field of dental care.
Kirika Ishiyama   +6 more
doaj   +1 more source

Oxidation of Monolayers of Partly Converted Dimethoxy-Substituted Poly(p-phenylenevinylene) Precursor Polymers at the Air-Water Interface [PDF]

open access: yes, 2000
We observed that the poly(p-phenylenevinylene) units in Langmuir monolayers of partly converted dimethoxy-substituted poly(p-phenylenevinylene) precursor polymers oxidize at the air-water interface.
Hagting, A   +2 more
core   +3 more sources

Studies on Production and Chemical Property of Singlet Oxygen and Superoxide Radical by Dyestuffs

open access: yesE-Journal of Chemistry, 2009
There are several low lying singlet oxygen (1O2) and superoxide radical (O-2) which are important in photochemical oxidation. In our present analysis we are studying chemical property of singlet oxygen (1O2) and super oxide radical (O-2) and some ...
Vikesh Kumar   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy