Results 121 to 130 of about 12,577,788 (269)

A new nanoindentation approach for determining both indentation size effect and continuous apparent activation volume during loading of nanocrystalline Ni and Ni-20 wt% Fe alloy

Journal of Materials Research and Technology
A new nanoindentation approach is developed in this study to determine both indentation size effect (ISE) and continuous apparent activation volume (V) during loading of nanocrystalline nickel (NC Ni) and nanocrystalline nickel-20 wt% iron alloy (NC Ni ...
Weiming Sun, Yue Jiang, Zhihui Zhang, Zhonghao Jiang, Cuie Wen, Luquan Ren   +5 more
doaj   +1 more source

Elastomeric 3D‐Printed Microenvironments Enable Nanonewton Force Measurements in Healthy and Diseased Human Pluripotent Stem Cell‐Derived Neuroepithelial Cells

Advanced Materials, EarlyView.
We present elastomeric three‐dimensional (3D) microstructures fabricated via two‐photon polymerization (2PP) and post‐processed through wet etching, for quantifying nanonewton (nN)‐scale forces applied by healthy and diseased neural cells. The mechanically characterized free‐standing beam architectures enable measurement of traction forces of ...
Pieter F. J. van Altena, Lucia Castillo Ransanz, Ruben H. Guis, Giulia Bergamaschi, Nanne J. Paauw, Urs Staufer, Vivi M. Heine, Angelo Accardo   +7 more
wiley   +1 more source

Extraction of the dynamic plastic behavior of AlON single crystals by nanoimpact

Journal of Advanced Ceramics
Investigating the dynamic mechanical behavior of single-crystal aluminum oxynitride (AlON) is fascinating and crucial for understanding material performance in relevant applications.
Haomin Wang, Mao Deng, Zhangyi Huang, Kailei Lu, Jiebin Shen, Hongjiang Qian, Zhiyong Huang, Jianqi Qi, Qingyuan Wang   +8 more
doaj   +1 more source

S‐Nitrosothiols as Thiol‐Protecting Groups for Controlled Thiol‐Maleimide Crosslinking of Homogeneous Soft Hydrogels

Advanced Materials, EarlyView.
Rapid thiol‐maleimide addition frequently outpaces mixing, resulting in heterogeneous hydrogels. S‐nitrosothiols act as thiol‐protecting groups, allowing uniform mixing with maleimide‐functionalized polymers before gelation. Sodium thiosulfate or sodium ascorbate then regenerates thiols on demand, triggering controlled thiol‐maleimide crosslinking ...
Julian A. Serna, Michelle J. Iwohn, Maximilian Seifermann, Stefan Heißler, Maike Schliephake, Franziska Dopp, Claudia Muhle‐Goll, Pavel A. Levkin   +7 more
wiley   +1 more source

ISE of Precious Metals: Au, Ag, Pd, and Pt

Metals
Precious metals play an important role in various fields, from industry to jewelry and finance. In the industrial field, it is often necessary to know their mechanical properties. Micro-hardness measurement is a suitable test.
Lenka Girmanová, Jozef Petrík, Marek Šolc, Peter Blaško, Alena Pribulová, Peter Futáš   +5 more
doaj   +1 more source

Nuclear Pore Mechanotransduction in Oncology: A Structural Axis of Vulnerability for Targeted Intervention

Advanced Materials, EarlyView.
Cancer‐associated NPC remodeling creates a high‐flux, low‐stringency nuclear state that supports malignant adaptation but increases mechanical fragility. Targeting the FG‐barrier or NPC scaffold may drive mechanostat failure, envelope rupture, DNA damage, and loss of nuclear integrity.
Sílvio Terra Stefanello, Caren Rigon Mizdal, Aline Franzen da Silva, Yun Qian, Wei‐En Yuan, Victor Shahin   +5 more
wiley   +1 more source

Conformal Thermoreversible Gelatin‐Based Gel for High‐Fidelity Electrophysiological Recording and Acute Peripheral Nerve Interfacing

Advanced Materials, EarlyView.
A thermoreversible gelatin‐based gel forms a soft, conformal bioelectronic interface on complex biological surfaces. The flowable precursor penetrates hair‐dense regions, solidifies in situ, and maintains low impedance through adaptive contact and hydration retention.
Ruinan Hao, Yong Yuan, Jie Gao, Tong Wang, Jinzhi Du, Feng Tian, Xiaoli Li, Ruirui Qiao, Liqun Zhang, Jiajia Xue   +9 more
wiley   +1 more source

Size effect of nickel-based single crystal superalloy revealed by nanoindentation with low strain rates

Journal of Materials Research and Technology
Size effect of the nickel-based single crystal superalloy DD6 is investigated in this study by performing nanoindentation experiments and finite element (FE) simulations by emphasizing the strain rate effect.
Xu Long, Ziyi Shen, Jiao Li, Ruipeng Dong, Ming Liu, Yutai Su, Chuantong Chen   +6 more
doaj   +1 more source

Bioengineered Interfaces for Peripheral Nerve Sensory Restoration

Advanced Materials, EarlyView.
Half of amputees abandon their prosthetics for lack of feeling. This review charts the full path from peripheral nerve injury to restored sensation, through surgical, regenerative, noninvasive, and implanted approaches, and shows how injury type and interface material properties determine which strategy can deliver naturalistic feedback, and why ...
Sydney Swedick, Salim El Hadwe, Kesi Liang, George G. Malliaras, Damiano G. Barone   +4 more
wiley   +1 more source

Size and geometrical effects of single- and poly-crystal metals in micro-indentation test

, 2001
Micro-indentation tests at scales on the order of sub-micron have shown that measured hardness increases strongly with decreasing indent depth or indent size, which is frequently referred to as the size effect, In this paper, the micro-indentation ...
Zhao M, Wei YG(魏悦广), Wang X, Wei, Y (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.   +3 more
core   +2 more sources