Results 11 to 20 of about 6,309 (244)

The photophysics of photosensitization: A brief overview

open access: yesJournal of Photochemistry and Photobiology, 2021
The concept of photosensitization had its origins in the serendipitous discovery in the 19th century that dye molecules could enhance the spectral range of photographic emulsions.
Frank H. Quina   +1 more
doaj   +1 more source

Hydrophobic Rose Bengal Derivatives Exhibit Submicromolar-to-Subnanomolar Activity against Enveloped Viruses

open access: yesBiomolecules, 2022
Rose Bengal (RB) is an anionic xanthene dye with multiple useful biological features, including photosensitization properties. RB was studied extensively as a photosensitizer, mostly for antibacterial and antitumor photodynamic therapy (PDT).
Anna A. Rubekina   +13 more
doaj   +1 more source

Photosensitized direct C–H fluorination and trifluoromethylation in organic synthesis

open access: yesBeilstein Journal of Organic Chemistry, 2020
The importance of fluorinated products in pharmaceutical and medicinal chemistry has necessitated the development of synthetic fluorination methods, of which direct C–H fluorination is among the most powerful.
Shahboz Yakubov, Joshua P. Barham
doaj   +1 more source

Photocatalytic Hydrogen Production by the Sensitization of Sn(IV)-Porphyrin Embedded in a Nafion Matrix Coated on TiO2

open access: yesMolecules, 2022
Efficient utilization of visible light for photocatalytic hydrogen production is one of the most important issues to address. This report describes a facile approach to immobilize visible-light sensitizers on TiO2 surfaces.
Sung-Hyun Kim, Hee-Joon Kim
doaj   +1 more source

Crystal-associated cholangiopathy in sheep grazing Brachiaria decumbens containing the saponin protodioscin Colangiopatia associada a cristais em ovinos alimentados com Brachiaria decumbens que contém a saponina protodioscina

open access: yesPesquisa Veterinária Brasileira, 2007
An outbreak of hepatogenous photosensitization is reported in a flock of 28 sheep grazing Brachiaria decumbens in Mato Grosso do Sul State, Central-Western Brazil. Seven lambs and an adult sheep were affected and 6 of them died.
Karine B. Brum   +4 more
doaj   +1 more source

Polymerization-Enhanced Photophysical Performances of AIEgens for Chemo/Bio-Sensing and Therapy

open access: yesMolecules, 2022
AIE polymers have been extensively researched in the fields of OLEDs, sensing, and cancer treatment since its first report in 2003, which have achieved numerous breakthroughs during the years.
Shanshan Huang   +3 more
doaj   +1 more source

SINGLET OXYGEN DETECTION DURING PHOTOSENSITIZATION [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2013
Singlet oxygen (1O2) is a highly reactive oxygen species involved in numerous chemical and photochemical reactions in different biological systems and in particular, in photodynamic therapy (PDT).
BUHONG LI   +4 more
doaj   +1 more source

Impact of Photosensitization on Physicochemical Properties in Strawberries

open access: yesProceedings, 2020
Strawberries, depending on the cultivar and environmental conditions, can be a rich source of nutrients like folates and vitamin C as well as bioactive phytochemicals, mainly polyphenols. But at room temperature, this fruit is highly perishable and has a
Shammy Sarwar   +4 more
doaj   +1 more source

Oxidative-Stress-Induced Cellular Toxicity and Glycoxidation of Biomolecules by Cosmetic Products under Sunlight Exposure

open access: yesAntioxidants, 2021
Cosmetics, commonly known as ‘makeup’ are products that can enhance the appearance of the human body. Cosmetic products include hair dyes, shampoos, skincare, sunscreens, kajal, and other makeup products.
Syed Faiz Mujtaba   +5 more
doaj   +1 more source

An integrated photocatalytic/enzymatic system for the reduction of CO2 to methanol in bioglycerol–water

open access: yesBeilstein Journal of Organic Chemistry, 2014
A hybrid enzymatic/photocatalytic approach for the conversion of CO2 into methanol is described. For the approach discussed here, the production of one mol of CH3OH from CO2 requires three enzymes and the consumption of three mol of NADH. Regeneration of
Michele Aresta   +5 more
doaj   +1 more source

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