Results 71 to 80 of about 6,309 (244)

Intoxicação experimental por Brachiaria decumbens em ovinos confinados Experimental poisoning by Brachiaria decumbens in feedlot sheep

Pesquisa Veterinária Brasileira, 2010
Foi realizado estudo experimental de intoxicação por Brachiaria decumbens em ovinos confinados que receberam apenas esta forrageira como alimento. Os animais foram avaliados em três períodos do ano, com duração de 60 dias cada.
Klaus C. Saturnino, Thiago M. Mariani, Marcos Barbosa-Ferreira, Karine B. Brum, Carlos Eurico dos Santos Fernandes, Ricardo A.A. Lemos   +5 more
doaj   +1 more source

High‐Throughput In Vivo Subcellular Analysis of Gold Nanoparticles for Tumor Mitochondrial Targeting

Advanced Materials, EarlyView.
A DNA barcoding system enables high‐throughput in vivo screening of mitochondrial‐targeting gold nanoparticles. Thirty nanoparticle types with varied shapes, sizes, and ligands are individually barcoded and pooled. The pooled library is administered to tumor‐bearing mice, and barcodes retrieved from tumor mitochondria are amplified and sequenced to ...
Xingyue Huang, Xuehao Tian, Kuei Chen, Yang Wu, ChenCheng Xue, Yingjie Quek, Jessalyn Low, Arun Kumar, Andy Tay   +8 more
wiley   +1 more source

Adverse drug reactions of the skin in geriatric patients when taking medications with a risk of photosensitization

Российский журнал гериатрической медицины
Background. Multiple comorbid conditions in the geriatric population are associated with changes in the classical clinical picture of diseases and the nature of their course, an increase in the number and severity of complications, a deterioration in ...
A. S. Bashkireva, N. P. Baranova, D. Yu. Bogdanova, A. V. Shishko, P. P. Anikeev   +4 more
doaj   +1 more source

Charge Transfer States in Donor–Acceptor Bulk‐Heterojunctions as Triplet–Triplet Annihilation Sensitizer for Solid‐State Photon Upconversion

Advanced Materials Interfaces, EarlyView.
A near‐infrared photosensitizer that facilitates efficient solid‐state photon upconversion by recycling triplets formed within a fullerene‐based donor–acceptor bulk‐heterojunction system is demonstrated. Spectroscopic investigations reveal that the energy of photogenerated charge transfer states of triplet character (3CT) is subsequently transferred to
Maciej Klein, Alexander R. Ireland, Evan G. Moore, Dennis Delic, Ajay K. Pandey   +4 more
wiley   +1 more source

Using Instanton Theory to Study Quantum Effects in Photosensitization

CHIMIA
Electronic excitation is usually accomplished using light (photoexcitation) and is a key step in a vast number of important physical and biological processes.
Meghna A. Manae, Jeremy O. Richardson
doaj   +1 more source

Green‐Light‐Activated Photoreaction via Genetic Hybridization of Far‐Red Fluorescent Protein and Silk

Advanced Science, 2018
Fluorescent proteins often result in phototoxicity and cytotoxicity, in particular because some red fluorescent proteins produce and release reactive oxygen species (ROS).
Jung Woo Leem, Jongwoo Park, Seong‐Wan Kim, Seong‐Ryul Kim, Seung Ho Choi, Kwang‐Ho Choi, Young L. Kim   +6 more
doaj   +1 more source

Light‐Controlled Exposure of Cancer Cells to Reactive Oxygen Species Using Organic Semiconductor Thin Films

Advanced Materials Interfaces, EarlyView.
Spin‐coated films of the conjugated polymer F8T2 (poly (9,9‐dioctylfluorene‐alt‐bithiophene)) generate superoxide at the film‐medium interface, enabling precise delivery of reactive oxygen species (ROS) as visible‐light “ROS patches.” Coated surfaces drive rapid, localised cytotoxicity in MCF7 cancer monolayers under white light, providing a reagent ...
Joe Kaye, Niculina Miron, Benjamin Fortes Mayer, Yukai Shi, Boyuan Chen, Lewis Krzeczkowski, Robert J. E. Westbrook, Saif A. Haque, Ali Salehi‐Reyhani   +8 more
wiley   +1 more source

NIR‐Activated Ag2S Quantum Dots for Efficient Broad‐Spectrum Antibacterial and Biofilm Disruption

Advanced Materials Interfaces, EarlyView.
This study presents a novel non‐antibiotic strategy leveraging NIR‐activated Ag2S QDs for synergistic PTT/PDT. The platform degrades the protective extracellular matrix via localized hyperthermia, facilitating deep penetration and ROS‐induced oxidative damage.
Rui Yao, Peiqing Sun, Yaxin Chen, Zhijie Lei, Li Wang, Jianglin Yu, Ying Liu, Wusimanjiang Hailipitimu, Wei Wei, Jing Zhao, Xusheng Qiu   +10 more
wiley   +1 more source

Fotossensibilização e colangiopatia associada a cristais em caprinos mantidos sob pastagens de Brachiaria decumbens no Mato Grosso do Sul Photosensitization and crystal associated cholangiopathy in goats grazing Brachiaria decumbes In Mato Grosso do Sul State, Brazil

Ciência Rural, 1998
Neste estudo são descritos dois surtos de fotossensibilização hepatógena em caprinos mantidos em pastagem de Brachiaria decumbens, no Mato Grosso do Sul. Os surtos ocorreram nos meses de maio e junho, sendo acometidos 2 caprinos de 4 meses de idade em um
Ricardo Antônio Amaral de Lemos, Luciano Nakazato, Geraldo Ortega Herrero Junior, Arley Coelho da Silveira, Lenir Cardoso Porfírio   +4 more
doaj   +1 more source

Radiotherapy Enhancement by Gold Nanocluster‐functionalized Nanoliposomes Using Polychromatic Orthovoltage X‐ray Irradiation

Advanced Materials Interfaces, EarlyView.
Lipid drug carriers to which ultra‐small gold nanoparticles were added enabled more efficient radiotherapy of cultured pancreatic cancer tumors. These nanoparticles boosted radiation‐induced damage to tumors by generating more reactive molecules, though higher gold levels are needed for strong benefits.
Nazareth Milagros Carigga Gutierrez, Eaazhisai Kandiah, Sofia Leo, Erwan Dupont, Fabrizio Johnson‐Corrales, Marc‐André Hograindleur, Sarvenaz Keshmiri, Hélène Elleaume, Benoit Busser, Romain Haudecoeur, Véronique Jacob, Anthony Vella, Véronique Josserand, Maxime Henry, Jean‐Luc Coll, Amandine Hurbin, Xavier Le Guével, Mans Broekgaarden   +17 more
wiley   +1 more source