Results 131 to 140 of about 2,767,492 (285)

cis‐Carboxylate Enhancement of Mn(III)‐OH Hydrogen Atom Abstraction through PCET Thermodynamics

Advanced Science, EarlyView.
ABSTRACT Manganese(III)‐hydroxo intermediates are proposed as key hydrogen atom abstraction (HAA) species in manganese‐dependent enzymes, yet how first‐sphere carboxylate ligands control their proton‐coupled electron transfer (PCET) thermodynamics remains poorly understood.
Yuri Lee, Yujin Sim, Sehun An, Kyung‐Bin Cho, Jaeheung Cho   +4 more
wiley   +1 more source

Unlocking Zenith Electronic State of Ni Sites in Ligand‐Engineered COFs for Efficient •O2−‐Driven Uranium Photoreduction

Advanced Science, EarlyView.
We develop a ligand engineering strategy to construct Ni‐diketimine‐linked COFs with precisely tuned Ni electronic states. By varying the coordinated diketone units, we achieve an optimal electronic configuration that enhances O2 adsorption and lowers the energy barrier for •O2− generation.
Guihong Wu, Fengtao Yu, Lin Wen, Sai‐Jin Xiao, Fangru Song, Jian‐Ding Qiu   +5 more
wiley   +1 more source

Large Electrostrain and High Optical Transmittance via Oxygen Octahedron Rotation Disordering in KNN Ceramics

Advanced Science, EarlyView.
Chemical disorder engineering reconfigures BO6 oxygen‐octahedron rotations in lead‐free K0.5Na0.5NbO3 ceramics from local ordering into a random distribution, dissolving the longstanding trade‐off between optical transparency and electromechanical strain.
Xia Luo, Jian Wang, Yu Tan, Jiyang Xie, Thamil Selvi Velayutham, Wanbiao Hu   +5 more
wiley   +1 more source

Study of the Physical Characteristics of Carbonate Samples from Archaeological Artifacts for EPR Dating

Поволжская археология
Investigation of the physical characteristics of mineral artifacts was undertaken with purpose of development of dating by the electron paramagnetic resonance (EPR) method in a new direction, by means of analysis of spectra of the carbonate probes from ...
Seredavina Tatyana A., Merts Ilya V., Danko Igor’ V. , Nurtazin Yernat R.   +3 more
doaj   +1 more source

Linkage Engineering Boosts Battery Performance of Two‐Electron Phenothiazine‐Based Polyamide Cathodes

Advanced Science, EarlyView.
Three phenothiazine‐based polyamides featuring gradually strengthened electron‐withdrawing linkers are developed as high‐voltage cathodes for lithium‐organic batteries. The linker motif serves not only as a structural bridge to suppress solubility, but also as a functional design element that governs optoelectronic properties and electron/ion transport
Shujuan Cao, Chunping Ren, Jing Qin, Xiujuan Wang, Xiaoming He   +4 more
wiley   +1 more source

An efficient EPR spin-labeling method enables insights into conformational changes in DNA

Biophysical Reports
Electron paramagnetic resonance (EPR) is a powerful tool for elucidating both static and dynamic conformational alterations in macromolecules. However, to effectively utilize EPR for such investigations, the presence of paramagnetic centers, known as ...
Melanie Hirsch, Lukas Hofmann, Idan Yakobov, Shirin Kahremany, Hila Sameach, Yulia Shenberger, Lada Gevorkyan-Airapetov, Sharon Ruthstein   +7 more
doaj   +1 more source

Electron paramagnetic resonance study of the paramagnetic centers in gamma-irradiated 2-nitrobenzoic acid single crystal

2-nitrobenzoic acid (C7H5NO4) (2NBA) single crystals were made paramagnetic using 60Co-gamma rays. An attempt was made to detect the resonance form formed in 2-nitrobenzoic acid single crystal with Electron Paramagnetic Resonance (EPR) Spectroscopy.
Caliskan, Betul, Caliskan, Ali Cengiz, Tutus, Yasemin   +2 more
core   +1 more source

Atomically Dispersed Fe‐Modified SnS for Sn‐Centered Peroxymonosulfate Activation Toward Acetaminophen Degradation

Advanced Science, EarlyView.
Atomically dispersed Fe regulates the local electronic environment and surface properties of SnS, while PMS preferentially coordinates to Sn through Sn–O interaction. Fe incorporation further enhances the Sn–OPMS interfacial interaction, facilitating Sn‐centered PMS activation and the generation of SO4•−/•OH for APAP degradation, thereby clarifying the
Shuhui Liu, Yantao Wang, Ya Liu, Jingkai Lin, Shaobin Wang, Wenjie Tian   +5 more
wiley   +1 more source

Evolution of ferromagnetic cluster in perovskite La0.88Sr0.12MnO3 nanocrystalline detected by EPR spectrum

Scientific Reports
Electron paramagnetic resonance (EPR) studies were performed on La0.88Sr0.12MnO3 (LSMO) nanocrystalline together with the measurement of its magnetization.
Shaozhen Li, Lisha Xu, Chao Fu, Mengqiu zheng, Wei Tong, Jiyu Fan   +5 more
doaj   +1 more source

Yoda1‐Functionalized Nanozymes Coordinate Piezo1 Activation and Mitochondrial Protection to Reprogram the Diabetic Osteoimmune Micromilieu and Promote Vascularized Bone Repair

Advanced Science, EarlyView.
Diabetic bone defects remain a critical clinical challenge. A 3D‐printed BCPG‐MF@Y scaffold, embedding Yoda1‐functionalized manganese dioxide‐ferritin nanozymes, scavenges mtROS, suppresses the cGAS–STING pathway, and reverses cellular senescence, while Yoda1 activates Piezo1 to direct BMSCs fate to synergistically reprogram the osteoimmune ...
Qing‐Song Deng, Ang Wang, Ren Zhang, Xu‐Ran Li, Po‐Lin Liu, Shu‐Hang He, Zi‐Yin Han, Zhi‐Han Shen, Zhan‐Ying Wei, Chang‐Ru Zhang, Fei Wang, Helen Dawes, Jian Lu, Tong‐He Zhu, Jin‐Zhong Zhao, Shang‐Chun Guo, Shi‐Cong Tao   +16 more
wiley   +1 more source