Results 121 to 130 of about 110,310 (316)

Base-specific spin-labeling of RNA for structure determination

, 2007
To facilitate the measurement of intramolecular distances in solvated RNA systems, a combination of spin-labeling, electron paramagnetic resonance (EPR), and molecular dynamics (MD) simulation is presented. The fairly rigid spin label 2,2,5,5-tetramethyl-
Olav Schiemann, Mu, Yuguang, Prisner, Thomas F., Stock, G., Engels, J.W., Prisner, TF., Thomas F. Prisner, Engels, Joachim W. (Prof. Dr.), Stock, Gerhard, Piton, N., Schiemann, Olav, Gerhard Stock, Nelly Piton, Piton, Nelly, Mu, Y., Yuguang Mu, Joachim W. Engels   +16 more
core   +1 more source

Reinforcing Oxygen Activation of Spinel Oxide via Mn─O Covalency Engineering for VOCs Oxidation

Advanced Science, EarlyView.
A MnCo spinel catalyst with weakened Mn─O covalency was synthesized via a hard‐template method. The reduced Mn─O covalency facilitates localized electron redistribution, promoting the activation of both molecular oxygen and lattice oxygen, and thereby enabling the efficient and complete oxidation of VOCs (ethyl acetate, toluene, and propane).
Gan Li, Ruochen Zhou, Qianqian Chen, Guobo Li, Xiang Tu, Fengbo Yu, Wenming Liu, Jian Ji, Honggen Peng   +8 more
wiley   +1 more source

Atomic Interlayer Mo–N4 Sites Enable Rapid Charge Transfer and Efficient CO2 Photoreduction

Advanced Science, EarlyView.
This work achieved efficient CO2 activation and ultrafast interlayer electron transport in a 2D COF by constructing atomic‐level Mo‐N4‐induced interlayer electron bridges (IEB), thereby kinetically and thermodynamically co‐driving the photocatalytic coupling of CO2 reduction with 4‐methoxybenzyl alcohol oxidation.
Lijuan Sun, Haiwei Su, Zhen Chen, William Orbell, Guijie Liang, Weikang Wang, Lele Wang, Juan Yang, Qinqin Liu, Junhua Li   +9 more
wiley   +1 more source

Electron paramagnetic resonance: A powerful tool of medical biochemistry in discovering mechanisms of disease and treatment prospects [PDF]

Journal of Medical Biochemistry, 2010
In pathophysiological conditions related to oxidative stress, the application of selected antioxidants could have beneficial effects on human health. Electron paramagnetic resonance (EPR) spectroscopy is a technique that provides unique insight into the ...
Spasojević Ivan
doaj  

Shaped Pulses in EPR

, 2016
In this article, we describe the implementation and advantages of shaped pulses in EPR spectroscopy. Phase/amplitude-modulated pulses on a nanosecond timescale allow improved excitation bandwidth and profile, and compensation of spatial field variations. The application of shaped pulses in magnetic resonance is briefly reviewed in the introduction, the
Spindler, P, Schoeps, P, Bowen, Alice; id_orcid 0000-0002-6413-2841, Endeward, B, Prisner, Thomas   +4 more
openaire   +3 more sources

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

Combining the Spin-Trap Methodology with EPR Spectroscopy to Investigate the Antioxidant Activity of Beer

openQuesto esperimento di laboratorio utilizza un'esplorazione della stabilità allo stoccaggio della birra per introdurre aspetti fondamentali della spettroscopia a risonanza paramagnetica elettronica (EPR).
SOVILLA, ANDREA
core  

Chain-Length-Dependent Termination of Sodium Methacrylate Polymerization in Aqueous Solution Studied by SP-PLP-EPR

, 2017
Via the single pulse–pulsed laser polymerization–electron paramagnetic resonance (SP-PLP-EPR) technique, the chain-length-dependent termination of 5 and 10 wt % sodium methacrylate (NaMAA) in aqueous solution was measured from 5 to 60 °C.
Patrick Drawe (3723094), Hendrik Kattner (1500970), Michael Buback (1500967)   +2 more
core   +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

EPR-Detected Folding Kinetics of Externally Located Cysteine-Directed Spin-Labeled Mutants of Iso-1-cytochrome c^†

, 2016
We report the application of our newly developed dielectric resonator-based flow and stopped-flow kinetic EPR systematically to probe protein folding in yeast iso-1-cytochrome c at cysteine-directed spin-labeled locations.
Yuhua Sun (2946297), Charles P. Scholes (2029978), Kim DeWeerd (2946303), Jacquelyn S. Fetrow (277393), Vladimir Grigoryants (2946300)   +4 more
core   +1 more source