Results 51 to 60 of about 11,710 (216)

Natural Products Inspired Scaffold Diversification Leads to Unnatural Molecular Warhead and Covalent Strategy to Modulating Protein Function through Electrophilic Bromine Transfer

Advanced Science, EarlyView.
We report a new thiolate‐reactive α,α‐gem‐dibromo lactam warhead that activates transcription factor Nrf2 and demonstrates anti‐inflammatory activities, which have implications in cancer, neurodegeneration, and cardiovascular diseases. RNA‐seq illuminated detailed transcriptional profiles, and chemical reactions with cysteine‐containing compounds ...
Beau R. Brummel, Sofia Kokkaliari, Qiwen Gao, Jinjing Chen, Larissa Costa de Almeida, Srinivasarao Tenneti, Derek A. Leas, Eli Levit, Lewis S. Alexander, Khalil A. Abboud, Pingrong Wei, Michael D. Cameron, James R. Rocca, Ranjala Ratnayake, Donna D. Zhang, Hendrik Luesch, Robert W. Huigens III   +16 more
wiley   +1 more source

Controlling Exsolution Dynamics in High‐Entropy Oxides for Highly Active and Selective Acetylene Semi‐Hydrogenation

Angewandte Chemie, EarlyView.
Li+‐induced lattice distortion, valence variation, and local charge redistribution in a rock salt‐structured high‐entropy oxide enable controlled metal exsolution, altering the Cu–Ni–Co exsolution sequence and delivering a surface Cu0‐enriched catalyst with exceptional activity and ethylene selectivity for acetylene semi‐hydrogenation.
Hailing Yu, Caiqi Wang, Kevin M. Siniard, Qingju Wang, Yuanpeng Zhang, J. Anibal Boscoboinik, Xiao Tong, Eliseo Perez Gomez, Shuai Yuan, Arun S. Asundi, Oliver Mueller, Murillo Longo Martins, Yongqiang Cheng, Michael Richard Koehler, De‐en Jiang, Zili Wu, Zhenzhen Yang, Sheng Dai   +17 more
wiley   +2 more sources

Formation of a Sterically Crowded 1,6,6αλ-Triselenapentalene and 4-Selenopyran-4-selones Fused with Two Bornane Skeletons Through the Reaction of -Camphor -Toluenesulfonylhydrazone With a Base and Elemental Selenium

Natural Product Communications, 2020
Reaction of d -camphor p -toluenesulfonylhydrazone with t -butoxide and elemental selenium in dimethylformamide at an elevated temperature afforded a stable compound having a unique 1,6,6αλ 4 -triselenapentalene ring and 4 H -selenopyran-4-selones along ...
Kazuaki Shimada, Shigenobu Aoyagi, Yuji Takikawa   +2 more
doaj   +1 more source

Overcoming the Trade‐Off Between Magnetic Coupling and Electrical Insulation in Soft Magnetic Materials via Nanochain Engineering

Advanced Science, EarlyView.
This study employs a nanochain engineering approach combined with an in situ oxidation strategy to fabricate self‐insulating iron‐based magnetic nanochains, addressing the challenge of balancing magnetic coupling and electrical insulation in soft magnetic materials.
Dingrong Zuo, Lichen Liu, Haibo Ke, Rongsheng Bai, Huaping Ding, Jing Zhou, Zhenxiang Cheng, Peng Yu, Weihua Wang   +8 more
wiley   +1 more source

The Borohydride Oxidation Reaction on La–Ni‐Based Hydrogen‐Storage Alloys [PDF]

ChemPhysChem, 2014
AbstractThis work provides insights into the processes involved in the borohydride oxidation reaction (BOR) in alkaline media on metal hydride alloys formed by LaNi4.7Sn0.2Cu0.1 and LaNi4.78Al0.22 with and without deposited Pt, Pd, and Au. The results confirm the occurrence of hydrolysis of the borohydride ions when the materials are exposed to BH4 ...
Paschoalino, Waldemir J., Thompson, Stephen J., Russell, Andrea E., Ticianelli, Edson A.   +3 more
openaire   +3 more sources

Au–NiZn/Ti Electrocatalyst for Efficient Sodium Borohydride Oxidation

Crystals
Direct borohydride fuel cells (DBFCs) are emerging as a promising source of clean energy; however, their performance depends heavily on efficient anode catalysts for the oxidation reaction of sodium borohydride (BOR).
Tripura Ganti, Aldona Balčiūnaitė, Huma Amber, Giedrius Stalnionis, Jūratė Vaičiūnienė, Loreta Tamašauskaitė-Tamašiūnaitė, Eugenijus Norkus   +6 more
doaj   +1 more source

Enhancing the CO tolerance of Pt/C as PEM fuel cell anode catalyst by modifying the catalyst synthesis method [PDF]

Hydrogen, Fuel Cell & Energy Storage, 2019
The most important challenge in Proton Exchange Membrane (PEM) fuel cells is poisoning of the anode catalyst in the presence of impurities, especially carbon monoxide (CO) in the hydrogen feed.
Shaker Kheradmandinia, Nahid Khandan, Mohammad Hasan Eikani   +2 more
doaj   +1 more source

Electrochemically Induced Interphase by Complex Hydride Anions in Argyrodite Solid Electrolytes for Stable Lithium Metal All‐Solid‐State Batteries

Advanced Science, EarlyView.
Complex hydride anion substitution in argyrodite electrolytes has attracted attention for improving interfacial stability, yet the influence of these anions at Li metal interfaces remains unclear. This work shows that electrochemically formed BH4−‐derived interphases enable stable high‐current full‐cell cycling.
Sangho Lee, Hyunseo Park, Ye‐Eun Park, Taehyun Kim, Taegyoung Lee, Taeseung Kim, SeoungJae Kang, Yerim Chae, Seunghee Joo, Jinkwang Hwang, Kyungsu Kim, Kazuhiko Matsumoto, Woosuk Cho, Sangryun Kim   +13 more
wiley   +1 more source

Use of PtAu/C electrocatalysts toward formate oxidation: electrochemical and fuel cell considerations

Materials for Renewable and Sustainable Energy, 2016
This study reports the use of PtAu/C electrocatalysts with different atomic ratios (90:10, 70:30 and 50:50) supported on Vulcan XC 72 carbon and prepared by the sodium borohydride method toward formate electro-oxidation in alkaline media.
Sirlane G. da Silva, Júlio César M. Silva, Guilherme S. Buzzo, Almir O. Neto, Mônica H. M. T. Assumpção   +4 more
doaj   +1 more source

Material‐Encoded Synchronization of Immunogenic Cell Death With Adenosine A2A Receptor Blockade Reprograms the Tumor Microenvironment

Advanced Science, EarlyView.
A bismuth–copper diselenide–based nanoplatform (BSCS@PHY) coordinates immunogenic cell death with local A2A receptor blockade in 4T1 tumors. Thermally triggered shell melting exposes catalytic surfaces for glutathione depletion and chemodynamic ROS generation, while co‐delivering an A2AR antagonist and yeast‐wall adjuvant to enhance dendritic‐cell ...
Xiangting Yi, Hanlou Yang, Junting Huang, Pengfei Wu, Shiying Zhou, Zunde Liao, Min Han, Zishan Chen, Xiaoyu Huang, Nan Ma, Jie Zhou, Mingqiang Li, Yiling Zhong   +12 more
wiley   +1 more source