Results 61 to 70 of about 159,516 (298)

Parallel fluorescence and phosphorescence monitoring of singlet oxygen photosensitization in rats [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2015
The time- and spectral-resolved set-up for measurements of weak infrared luminescence of photosensitizers (PSs) and singlet oxygen using optical lightguides was used on skin of laboratory animals in vivo.
Roman Dědic   +5 more
doaj   +1 more source

Penggunaan Larutan Ekstrak Etanol Dari Temulawak Sebagai Fotosensitizer Di Dalam Pemutihan (Pengelantangan) Pulp Dengan Penyinaran Lampu [PDF]

open access: yes, 2013
Etanol extract from temulawak can used as fotosensitizer in pulp bleaching with lamp irradiating, which is in this pulp bleaching obtained singlet oxygen.
Perdana, A. (Arif)
core  

Reducing Open‐Circuit Voltage Losses in Wide‐Bandgap FAPbBr3 Perovskite Solar Cells for Continuous Unassisted Light‐Driven Water Splitting

open access: yesAdvanced Functional Materials, EarlyView.
The combination of formamidinium thiocyanate and 1,3‐propane diammonium iodide for bulk and top‐surface passivation, and a ternary fullerene blend to improve energy band alignment, suppresses energy losses in wide‐bandgap FAPbBr3 perovskite solar cells.
Laura Bellini   +9 more
wiley   +1 more source

Extraction, Identification and Photo-Physical Characterization of Persimmon (Diospyros kaki L.) Carotenoids

open access: yesFoods, 2017
Carotenoid pigments were extracted and purified from persimmon fruits using accelerated solvent extraction (ASE). Eleven pigments were isolated and five of them were clearly identified as all-trans-violaxanthine, all-trans-lutein, all-trans-zeaxanthin ...
Khalil Zaghdoudi   +6 more
doaj   +1 more source

Supramolecular Control of Singlet Oxygen Generation

open access: yesMolecules, 2021
Singlet oxygen (1O2) is the excited state electronic isomer and a reactive form of molecular oxygen, which is most efficiently produced through the photosensitized excitation of ambient triplet oxygen.
Akshay Kashyap   +3 more
doaj   +1 more source

New Halogenated Phenylbacteriochlorins and Their Efficiency in Singlet-Oxygen Sensitization [PDF]

open access: yes, 2002
Halogenated phenylbacteriochlorins are synthesized with high yields in a two-step procedure. They have strong absorbances in the red and are very stable to air and light at room temperature.
Arnaut, Luís G.   +4 more
core   +1 more source

Transition From Lattice Oxygen to Radical‐Mediated Oxidation in Ammonium‐Intercalated Birnessite Catalysts for Selective Valorization of Biomass to Produce Formic Acid

open access: yesAdvanced Functional Materials, EarlyView.
The catalytic valorization of biomass represents an essential approach for achieving sustainable chemical production, with formic acid (FA) being recognized as a valuable platform chemical for hydrogen storage and environmentally friendly synthetic applications.
Yiqi Geng   +6 more
wiley   +1 more source

Subcellular Singlet Oxygen and Cell Death: Location Matters

open access: yesFrontiers in Chemistry, 2020
We developed a tool for targeted generation of singlet oxygen using light activation of a genetically encoded fluorogen-activating protein complexed with a unique dye molecule that becomes a potent photosensitizer upon interaction with the protein.
Pingping Liang   +9 more
doaj   +1 more source

Enrolling reactive oxygen species in photon-to-chemical energy conversion: fundamentals, technological advances, and applications

open access: yesAdvances in Physics: X, 2021
In theory, oxygen (O2) is an ideal chemical reagent because of its high relative abundance and negligible environmental toxicity. In practice however, by the nature of its ground state electronic configuration, many chemical reactions involving O2 are ...
Irving D. Rettig, Theresa M. McCormick
doaj   +1 more source

Reduction of three-band model for copper oxides to single-band generalized t~-~J model

open access: yes, 1993
A three-band model for copper oxides in the region of parameters where the second hole on the copper has energy close to the first hole on the oxygen is considered. The exact solution for one hole on a ferromagnetic background of the ordered copper spins
A. L. Chernyshev   +27 more
core   +1 more source

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