Results 121 to 130 of about 28,300 (310)

Atomic Step-Terrace Ordering Enables Unprecedentedly Low Pop-in Stress Scatter in GaN (0001). [PDF]

Small
Step–terrace GaN surfaces with monoatomic topography were realized using catalyst‐referred etching. On these surfaces, pop‐ins occurred at ideal strength with a record‐low stress scatter of 2.3%, providing compelling evidence that atomic‐scale surface ordering plays a critical role in triggering incipient plasticity. Atomic‐scale surface irregularities,
Oguri H, Li Y, Osaka AI, Hara R, Kinoshita R, Toh D, Hattori AN, Tochigi E, Nakamura A.   +8 more
europepmc   +2 more sources

Molecular Engineering Mediated Interfacial Assembly as an Artificial Extracellular Matrix Remolds Bacteria With Enhanced Abiotic Resilience

Advanced Science, EarlyView.
A biomimetic artificial extracellular matrix is assembled directly on Pseudomonas fluorescens by co‐assembling amyloid‐like lysozyme and alginate at the cell surface. This conformal nanocoating acts as both a hydration buffer and a physiological priming layer, markedly enhancing desiccation tolerance, seed adhesion, storage stability, and biocontrol ...
Yuanyuan Wang, Zili Jia, Yang Li, Qitao Wang, Shuai Hou, Lei Liu   +5 more
wiley   +1 more source

Study of the Mechanical Properties of a Nanostructured Surface Layer on 316L Stainless Steel

Advances in Materials Science and Engineering, 2016
A nanostructured surface layer (NSSL) was generated on a 316L stainless steel plate through surface nanocrystallization (SNC). The grains of the surface layer were refined to nanoscale after SNC treatment.
F. C. Lang, Y. M. Xing, J. Zhu, Y. R. Zhao   +3 more
doaj   +1 more source

Experimental Simulation of Reduction of Erosion Damage in Dies Used in Aluminium Casting [PDF]

, 2013
A review of damage mechanisms in dies used for aluminium casting revealed that erosion due to the molten/semi-solid aluminium droplets entering the die was a major cause of wear.
Mohammed, Ali
core  

Deformation Behavior During Nanoindentation in Ce-Based Bulk Metallic Glasses

, 2006
The deformation behavior and the effect of the loading rate on the plastic deformation in Ce-based bulk metallic glasses (BMGs) were investigated through nanoindentation tests.
邢冬梅, 王育人, 张凌晨, 李维火, 魏炳忱, Wei, BC (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100080, Peoples R China.   +5 more
core   +1 more source

Mechanical Activation of Piezo1 Drives Osteoarthritis Through Kdm5c‐Mediated Epigenetic Silencing

Advanced Science, EarlyView.
Excessive mechanical stress activates Piezo1, triggering Ca2+‐dependent cytoskeletal forces that deform the nucleus and reduce H3K4me3. Kdm5c demethylates H3K4me3 at Col2a1 and Runx3 promoters. Kdm5c knockout rescues degradation. Repurposed telmisartan directly inhibits Kdm5c, blocking this axis and showing disease‐modifying efficacy in mouse OA models
Tianyou Kan, Xuran Li, Han Wang, Lin Sun, Yao Wang, Jiangdong Wu, Junqi Cui, Yiqi Yang, Kai Yuan, Linyang Chu, Liao Wang, Hanjun Li, Mengning Yan, Zhifeng Yu   +13 more
wiley   +1 more source

Vapor‐Phase Grain‐Boundary Anchoring Enables Molecular Toughening and Record Bending Endurance in Pilot‐Scale Roll‐to‐Roll‐Printed Flexible Perovskite Modules

Angewandte Chemie, EarlyView.
A vapor‐phase molecular toughening strategy is developed for pilot‐scale roll‐to‐roll (R2R) ‐compatible fabrication of flexible perovskite solar modules. Thiol vapor selectively regulates crystallization and anchors at grain boundaries, reducing defects while enhancing mechanical resilience.
Lirong Dong, Viktor Rehm, Shudi Qiu, Zexian Han, Naveen Harindu Hemasiri, Michael Wurmshuber, Michael Wagner, Cindy‐Ly Tavera‐Méndez, Dorothea Wisser, Chaohui Li, Robin Basu, Leopold Lahn, Olga Kasian, Sarmad Feroze, Wolfgang Heiss, Andreas Distler, Hans‐Joachim Egelhaaf, Fu Yang, Christoph J. Brabec   +18 more
wiley   +2 more sources

Stiffness‐Activated Stellate Cells Drive Pancreatic Cancer Liver Colonization via GMFG‐TNS4 Signaling

Advanced Science, EarlyView.
Fibrotic liver stiffness activates hepatic stellate cells through Piezo1‐dependent calcium influx and ER stress, promoting EV‐associated GMFG release. Delivered GMFG engages TNS4 in pancreatic cancer cells, triggering FAK/AKT signaling, adhesion, and fatty acid synthesis.
Biwen Zhu, Jian Wan, Xue Zhang, Jiashuai Yan, Xi Chen, Xiaoqi Guan, Qianqian Ren, Tao Yang, Di Wu, Qingsong Guo, Yibing Guo, Yuhua Lu   +11 more
wiley   +1 more source

Mechanically Regulated Nanozymes for Remote Metabolic Reprogramming and Precise Cancer Therapy

Angewandte Chemie, EarlyView.
Inspired by mechanoenzymes, a ferrocene‐based mechanically regulated nanozyme converts acoustic shear force into enhanced peroxidase‐like activity by decreasing electron density and alleviating steric hindrance at the Fe active sites, thereby rewiring redox homeostasis. Leveraging this remote regulatory mechanism, a multienzyme‐regulated nanoreactor is
Fangman Chen, Xiaochun Xie, Hanyao Huang, Ka Hong Wong, Jiying Liu, Hui Fang, Shaowen Wang, Jianfang Cao, Yu Tao, Mingqiang Li, Chao Yang, Wen Sun, Dan Shao, Yunlu Dai   +13 more
wiley   +2 more sources

Study on the Effects of Cryogenic Treatment on WC-Co Cemented Carbide at Different Scales Using an Indentation Technique

Metals
Cemented carbide (WC-Co) combines high hardness, wear resistance, and toughness, making it ideal for tooling applications. This study investigated cryogenic treatment’s effects on the mechanical properties of samples from various suppliers prepared at ...
Suparoj Premjarunan, Karuna Tuchinda, Kaweewat Worasaen   +2 more
doaj   +1 more source