Results 61 to 70 of about 58,333 (298)

New Approach to Inactivation of Harmful and Pathogenic Microorganisms by Photosensitization

Food Technology and Biotechnology, 2005
Photosensitization is a treatment involving the administration of a photoactive compound that selectively accumulates in the target cells or microorganisms and is followed by irradiation with visible light.
Živile Lukšiene
doaj  

A POLIANILINA NO CENÁRIO AMBIENTAL: UMA ABORGAGEM SOBRE FOTOCATÁLISE HETEROGÊNEA

Química Nova
Polyaniline is a conducting polymer that has recently been studied regarding its potential in the removal of contaminants by heterogeneous photocatalysis. Since it is a polymer with a high absorption capacity of photons in the visible region, it promotes
Vanessa M. M. Vargas, Carla Dalmolin, Sérgio H. Pezzin, Marcela Mohallem Oliveira, Patricio Peralta-Zamora   +4 more
doaj   +1 more source

Fotossensibilização hepatógena em eqüinos pela ingestão de Brachiaria humidicola (Gramineae) no Estado do Pará Hepatogenous photosensitization in horses caused by Brachiaria humidicola (Gramineae) in the State of Pará

Pesquisa Veterinária Brasileira, 2006
São apresentados os aspectos clínico-patológicos e epidemiológicos de doença, caracterizada por fotossensibili-zação, que ocorre em eqüinos no nordeste do Estado do Pará.
José Diomedes Barbosa, Carlos Magno C. de Oliveira, Carlos Hubinger Tokarnia, Paulo Vargas Peixoto   +3 more
doaj   +1 more source

Effect of Photosensitization on Inactivation of Aspergillus flavus in Maize

Proceedings, 2020
Mycotoxins are naturally occurring toxins produced by certain types of fungi thatcontaminate food and feed, posing serious health risks to human and livestock. Photosensitizationis a light-based technique, which has emerged as a novel and promising green
Rafael Nguenha, Maral Seidi Damyeh, Hung T. Hong, Yasmina Sultanbawa   +3 more
doaj   +1 more source

Modulating the Charge Transfer Channels via Constructing Charge‐Assisted Hydrogen‐Bonded Organic Frameworks for Enhanced Photosynthesis of Hydrogen Peroxide

Advanced Science, EarlyView.
This work reports a strategy of engineering charge‐assisted hydrogen bonds to tailor charge transfer channels in HOFs, significantly improving their performance in photocatalytic H2O2 production. ABSTRACT The production of H2O2 via artificial photosynthesis is often limited by inefficient charge‐carrier separation, causing significant charge ...
Yajun Zhao, Xianzhi Lan, Tiantian Chen, Qijie Mo, Chao Peng, Jianbo Jia, Jiewei Liu, Cheng‐Yong Su   +7 more
wiley   +1 more source

Effect of non-invasive fractional photothermolysis on the efficacy of transdermal photosensitization in the experiment in vivo

Biomedical Photonics
In an in vivo pilot study, the efficiency of noninvasive fractional laser photothermolysis (NFLP) as a transdermal system for application photosensitization of mouse skin before photodynamic therapy (PDT) was studied.
D. I. Chernopyatov, N. P. Bgatova, S. D. Nikonov, V. V. Nimaev   +3 more
doaj   +1 more source

Photodynamic Priming and Minocycline Overcome Chemoresistance by Reprogramming the Pancreatic Tumor Immune Microenvironment In Vivo

Advanced Science, EarlyView.
Dual priming with minocycline and photodynamic priming reprograms the pancreatic tumor microenvironment to overcome chemoresistance. By suppressing DNA repair enzyme Tdp1, inducing photooxidative damage, and enhancing irinotecan delivery via light‐activated nanoencapsulation, this strategy remodels the tumor microenvironment and drives immune ...
Fernanda V. Cabral, Jose Quilez‐Alburquerque, Olivia Mooradian, Shivendran Vytheswarran, Badri Parshad, Girgis Obaid, Huang‐Chiao Huang, Tayyaba Hasan   +7 more
wiley   +1 more source

Using Colistin as a Trojan Horse: Inactivation of Gram-Negative Bacteria with Chlorophyllin

Antibiotics, 2019
Colistin (polymyxin E) is a membrane-destabilizing antibiotic used against Gram-negative bacteria. We have recently reported that the outer membrane prevents the uptake of antibacterial chlorophyllin into Gram-negative cells.
Peter Richter, Marcus Krüger, Binod Prasad, Susanne Gastiger, Mona Bodenschatz, Florian Wieder, Andreas Burkovski, Walter Geißdörfer, Michael Lebert, Sebastian M. Strauch   +9 more
doaj   +1 more source

Tyrosinase Driven‐Intracellular Polymerization of a Porphyrin Derivative Induced Immunogenic Death of Melanoma Cells and Strengthened Photodynamic Therapy

Advanced Science, EarlyView.
This study uses tyrosinase, which is highly expressed in melanoma, to drive porphyrins to polymerize and self‐assemble within tumor cells to form retented microstructures. This process induces immunogenic death and activates immune responses (M1 macrophages, dendritic cells, CD8+T cells), turning “cold” tumors into “hot” tumors.
Mian Tang, Junteng Qiu, Yunfeng Lu, Yahui Song, Xinyu Zhou, Tianshun Duan, Xuanqi Peng, Caixia Yin, Cheng Gao, Ruibing Wang   +9 more
wiley   +1 more source

Gold-Sensitized Silicon/ZnO Core/Shell Nanowire Array for Solar Water Splitting

Frontiers in Chemistry, 2019
Solar water splitting represents one of the most promising strategies in the quest for clean and renewable energy. However, low conversion efficiency, use of sacrificial agents, and external bias for current water splitting system limit its practical ...
Fu-Qiang Zhang, Ya Hu, Rui-Nan Sun, Haoxin Fu, Kui-Qing Peng   +4 more
doaj   +1 more source