Results 101 to 110 of about 509,240 (310)

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

FEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee, Giulia Zanetti, Bram van den Broek, Kees Jalink   +3 more
wiley   +1 more source

Metal-free carbon-nitrogen@carbon-type hybrid electrocatalysts for peroxide-producing oxygen reduction reaction

Carbon Future
Hydrogen peroxide (H2O2) is a widely utilized chemical in environmental cleaning, medical disinfection, and chemical engineering. Compared to the traditional anthraquinone oxidation method, the electrocatalytic oxygen reduction reaction (ORR) has become ...
Bin Wu, Dulce M. Morales, Mingren Liu, Dongjiu Xie, Ping Feng, Yan Lu, Marcel Risch, Martin Oschatz, Tristan Petit   +8 more
doaj   +1 more source

Exploring advanced oxygen reduction reaction electrocatalysts: the potential of metal‐free and non‐pyrolyzed covalent organic frameworks

Oxygen reduction reaction (ORR) electrocatalysis is an area of increasing interest for the in‐situ production of H2O2 or the development of energy‐related devices such as hydrogen fuel cells. Although pyrolyzed catalysts still offer the best performances
Martínez‐Fernández, Marcos, Segura Castedo, José Luis   +1 more
core   +1 more source

Electrocatalytic activity of silver decorated ceria microspheres for the oxygen reduction reaction and their application in aluminium-air batteries

, 2017
Nanosheet-constructing porous CeO2 microspheres with silver nanoparticles anchored on the surface were developed as a highly efficient oxygen reduction reaction (ORR) catalyst.
Shanshan Sun, Heran Huang, Qin Wang, Miao, He, Liu, Zhaoping, Huang, Heran, He Miao, Shihua Li, Sun, Shanshan, Li, Shihua, Yejian Xue, Zhaoping Liu, Xue, Yejian, Wang, Qin   +13 more
core   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

FEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento, Danniel Pereira‐Figueiredo, Gabriella Grossi de Lima Dias, Gabriel Ferreira dos Santos, Mariana Rodrigues Pereira, Rafael Brito, Karin C Calaza   +6 more
wiley   +1 more source

Enhanced oxygen reduction reaction on caffeine-modified platinum single-crystal electrodes

Communications Chemistry
Enhancing the activity of the oxygen reduction reaction (ORR) is crucial for fuel cell development, and hydrophobic species are known to increase the ORR activity.
Nagahiro Hoshi, Masashi Nakamura, Ryuta Kubo, Rui Suzuki   +3 more
doaj   +1 more source

Two-dimensional circular platinum nanodendrites toward efficient oxygen reduction reaction and methanol oxidation reaction

Electrochemistry Communications, 2019
Two-dimensional circular platinum nanodendrites (~13 nm thick, up to 138.8 nm in diameter) were synthesized by chemical reduction of platinum complexes with ascorbic acid in the presence of block copolymer and pre-formed seeds.
Huiyuan Liu, Jiaqi Qin, Siqin Zhao, Zhanming Gao, Qiang Fu, Yujiang Song   +5 more
doaj   +1 more source

High active PtAu/C catalyst with core-shell structure for oxygen reduction reaction

, 2010
Ultra-low Pt catalysts with Pt(shell)-Au(core) nanostructure were prepared by seed mediate method for oxygen reduction reaction (ORR). The as-prepared catalysts were characterized by transmission electron microscopy (TEM) and UV-Vis measurements. The ORR
Zhong, Hexiang, Ma, Yuanwei, Jin, Hong, Geng, Xiaoying, 张华民, Zhang, Huamin, Xu, Ting   +6 more
core   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Porphyrin-based frameworks and derivatives for the oxygen reduction reaction

Materials Today Catalysis
The global energy crisis and environmental pollution issues caused by the continuous consumption of fossil fuels are increasingly becoming severe. Developing clean and sustainable hydrogen (H2) energy and corresponding storage and conversion devices have
Yiwen Cao, Yonghong Mou, Jieling Zhang, Rui Zhang, Zuozhong Liang   +4 more
doaj   +1 more source