Results 101 to 110 of about 16,570 (284)

A Soft Matrix Microenvironment Promotes Laterally Spreading Tumors via Oxidative Phosphorylation‐Dependent Cell Adhesion

Advanced Science, EarlyView.
Laterally spreading tumors (LSTs) are precancerous colorectal lesions characterized by a flat morphology. This study reveals a mechanochemical pathway through which a soft matrix microenvironment diminishes spatial constraints in intestinal adenomas. This process promotes deficiencies in tight junction proteins, mediated by the mechanoreceptor ADORA2B ...
Jiamin Zhong, Jingyi Lu, Haopeng Li, Jun Zhong, Xiaobei Luo, Yiyi Hu, Xianfei Wang, Pengfei Wang, Yanning Zhang, Zhenjiang Wang, Qiuhua Lai, Zhenyu Chen, Wenting Mi, Wang Tin San‐to, Weize Li, Shuping Tan, Qihong Cheng, Ruijia Li, Yida Nie, Side Liu, Bing Huang, Zelong Han   +21 more
wiley   +1 more source

Navigating Nitration Chemistry: A Practical Guide to Reagents, Mechanisms, and Selectivity

Angewandte Chemie, EarlyView.
This review highlights key contributions of modern nitration chemistry, emphasizing sustainable mechanistic platforms and comparing the performance of both organic and inorganic reagents across aromatic, ipso‐, olefin, alkyne, and heteroatom nitration. It provides the community with a clearer, unified perspective on current advances and facilitates the
Harry Lecomte, Anthony J. Fernandes, Dmitry Katayev   +2 more
wiley   +2 more sources

Mechanochemical Activation in Heterogeneous Catalysis [PDF]

, 2018
In recent years the field of mechanochemical activation of solids for the enhancement of heterogeneously catalyzed reactions has grown substantially. Mechanochemical activation has shown to change the overall reactivity of solids, allowing catalytic reactions to run through new pathways at nearly ambient conditions.
openaire   +1 more source

Highly Robust Sn‐Based MAX Anodes Constructed via Ti6C Octahedral Outer Immobilization and A‐Layer Fe Inner Anchoring for Long‐Life Lithium‐Ion Batteries

Advanced Science, EarlyView.
How can Sn‐based anodes achieve high capacity and long‐life cycling? This work unlocks the potential anode structure by confining Sn in the A layer of MAX phase with Ti6C octahedra as outer immobilization and Fe as inner anchors. The introduction of Fe dramatically strengthens the Ti–Sn bond to enhance structural integrity, modulate interfacial ...
Yu‐ang Lei, Yuchen Guo, Linkai He, Yi Tang, Junhui Zou, Yangyang Xie, Xiaodie Xuan, Zhao Bi, Yu Wang, Ting Liu, Yunqing Kang, Taotao Ai, Yusuke Yamauchi, Chenhui Yang   +13 more
wiley   +1 more source

Hydrogen Generation by Means of Hydrolysis Using Activated Al-In-Bi-Sn Composites for Electrochemical Energy Applications

International Journal of Electrochemical Science, 2017
Effective activation compounds are developed to produce hydrogen via hydrolysis of ball-milled Al- In-Bi-Sn composites in tap water at room temperature. Al-In-Bi-Sn composites are successfully activated by 3 h of milling.
S.P. du Preez, D.G. Bessarabov
doaj   +1 more source

Efficient Electrocatalytic Conversion of CO2 to Pure Formic Acid Solutions via Strain‐Engineered Bismuth Nanosheets

Advanced Science, EarlyView.
Tensile‐strained bismuth nanosheets (TS‐BiNs) achieve a formate Faradaic efficiency of 92% at −1000 mA cm−2 and enable stable production of pure formic acid (HCOOH) in a solid‐state electrolyte reactor. Theoretical calculations reveal that the introduced strain lowers the energy barrier for *OCHO intermediate formation, fundamentally enhancing the ...
Shiqi Li, Yuefeng Zhang, Panzhe Qiao, Cuo Wu, Xinya Tian, Yufeng Xu, Yun Zhang, Peng Wang, Tingting Li, Muhammad Afaq, Xinlin Luo, Tang Wang, Chunxiao Liu, Zi‐You Yu, Chuan Xia, Min‐Rui Gao, Zhen‐Yu Wu   +16 more
wiley   +1 more source

Mechanically Activated Luminescence in Polyurethanes Incorporating Calixarene Mechanophores

Angewandte Chemie, EarlyView.
The conformational flexibility of a calix[4]arene is exploited to obtain a reversible mechanoluminophore featuring a pyrene excimer couple at the upper rim. Stretching a linear polyurethane incorporating such mechanophore results in luminescence color change from yellow–green to blue, consistent with a force‐induced conformational motion of the ...
Lucia Visieri, Alessandro Casnati, Laura Baldini, José Augusto Berrocal   +3 more
wiley   +2 more sources

Preparation and Characteriazation of Bismuth Niobium Oxide Ion Conductors [PDF]

, 2009
Materials in Bi2O3-Nb2O5 binary system have been successfully synthesized by conventional solid-state method and also mechanochemical method. Solid solution series, BixNbOδ was obtained at 2.5 ≤ x ≤ 6 for both conventional solid-state method and ...
Ng, Sin Nee
core  

Simultaneous Wastewater‐to‐Hydrogen Upgrading via Mechanically Driven Piezocatalysis Over Ag‐ZnO Nanorods

Advanced Science, EarlyView.
A piezocatalytic strategy enables simultaneous wastewater purification and hydrogen generation by harnessing mechanical energy. Complementary piezo‐induced charges are selectively directed toward oxidation and reduction pathways, achieving efficient pollutant degradation and continuous H2 evolution.
Yiqing Wei, Jianghai Huang, Yejunchi Zhang, Yang Wang, Dongmei Li, Chaogang Ban, Peng Yu, Jiangping Ma, Zhenxiang Cheng   +8 more
wiley   +1 more source

CsPbBr3–Nanodiamonds Hybrid Wafers for Mechanically Robust, High‐Performance X‐Ray Detection

Advanced Electronic Materials, EarlyView.
NDs‐engineered CsPbBr3 hybrid wafers, fabricated via scalable solid‐state grinding and cold pressing, utilize trace NDs to regulate mechanochemical conversion, promote heterogeneous nucleation, bridge grain boundaries, and passivate interfacial defects. The optimized wafer exhibits dense microstructures, improved charge transport, reduced dark current,
Yanan Gong, Zhuangjie Xu, Weidong Zhu, Xiaoxuan Zhang, Zihao Wang, Zeyang Ren, Yanshuang Ba, He Xi, Zhimin Li, Chunfu Zhang, Jincheng Zhang, Yue Hao   +11 more
wiley   +1 more source