Results 91 to 100 of about 94,544 (242)

Remote Magnetomechanical Neuromodulation Uncovers Therapeutic Mechanisms for Alleviating Parkinsonian Symptoms in Freely Moving Mice

Advanced Science, EarlyView.
Magnetomechanical neuromodulation using magnetic nanodiscs enables remote activation of neurons. In a hemiparkinsonian mouse model, alternating magnetic fields actuate the nanodiscs to generate torque that opens mechanosensitive ion channels within the subthalamic nucleus, thereby modulating basal ganglia motor circuitry.
Anouk Wolters, Lorenzo Signorelli, Christian Herff, Sophia Gimple, Renzo Riemens, Gunter Kenis, Kim Rijkers, Hamed Shabani, Jyh‐Jang Sun, Yasin Temel, Hans Clusmann, Danijela Gregurec, Sarah‐Anna Hescham   +12 more
wiley   +1 more source

The Fundamental Assumptions and Equations of Lubrication Theory

, 2009
The fundamental assumption in Lubrication Theory. Derivation of thin film flow equations from Navier-Stokes equations. Importance of fluid inertia effects in thin film flows.
San Andres, Luis
core  

In Situ Stress‐Dispersing Hydrogel Millispheres via Load Redistribution to Restore Nucleus Pulposus Metabolic Homeostasis

Advanced Science, EarlyView.
Local stress concentration disrupts metabolic homeostasis and induces inflammation in the nucleus pulposus (NP), thereby accelerating intervertebral disc degeneration (IDD). A biomimetic HA/ChS hydrogel millimeter sphere (ChS@HM) is developed to enable synergistic stress dispersion and sustained hydration lubrication.
Ang Li, Hui Yuan, Honglei Xiao, Xiaodong Liu, Wenguo Cui   +4 more
wiley   +1 more source

Programmable Topological Magnetic Textures in Above‐Room‐Temperature 2D Ferromagnet Fe3GaTe2

Advanced Science, EarlyView.
This work demonstrates the programmable generation and deterministic modulation of magnetic skyrmion bags with high‐order topological numbers in the above‐room‐temperature 2D ferromagnet Fe3GaTe2 (FGaT) via current‐pulse control. Furthermore, highly efficient electrical manipulation and current‐driven parallel motion of these high‐order topological ...
Hanqing Shi, Yilian Xi, Jingwei Zhang, Jiaqi Liu, Zhizhen Ren, Shilei Zhang, Weichang Hao, Haifeng Feng, Yi Du   +8 more
wiley   +1 more source

Near-zero-wear with super-hard WB4 and a self-repairing tribo-chemical layer

Communications Materials
Achieving near-zero-wear remains a major challenge in mechanical engineering and material science. Current ultra-low wear materials are typically developed based on the self-consumption strategy.
Guixin Hou, Shengyu Zhu, Hui Tan, Wenyuan Chen, Jiao Chen, Qichun Sun, Juanjuan Chen, Jun Cheng, Peixuan Li, William Yi Wang, Jun Yang, Weimin Liu   +11 more
doaj   +1 more source

Dynamic covalent chemistries of thermosetting polymer for recyclability and intelligent lubrication

Friction
Recently, the focus of materials research has shifted toward intelligent materials and structures with customizable properties and stimulus-responsive functions.
Qihua Wang, Nan Zhang, Xinrui Zhang, Liming Tao, Yaoming Zhang, Zenghui Yang, Tingmei Wang   +6 more
doaj   +1 more source

Exploring the friction and wear behaviors of Ag-Mo hybrid modified thermosetting polyimide composites at high temperature

Friction, 2019
Polyimide composites have been extensively used as motion components under extreme conditions for their thermal stability and special self-lubricating performance.
Chunjian Duan, Ren He, Song Li, Mingchao Shao, Rui Yang, Liming Tao, Chao Wang, Ping Yuan, Tingmei Wang, Qihua Wang   +9 more
doaj   +1 more source

Tribological properties and lubrication mechanisms of a Ag-Mo composite

, 2016
A composite material containing silver and molybdenum metals was fabricated by powder metallurgy method with a Ag/Mo molar ratio of 2:1 and the sintering temperature is 700 degrees C.
Zhang, Tiantian, Zhang, Weigang, Huang, Chuanbing, Lan, Hao, Du, Lingzhong   +4 more
core   +1 more source

Root‐Inspired Microneedle Patch With Interlocked Rigid‐Soft Architecture for High Tissue‐Adaptiveness

Advanced Science, EarlyView.
A root‐inspired microneedle array patch uses lattice‐based mechanical interlocking to unite rigid microneedles with a flexible substrate. The interlocked rigid–soft architecture improves interfacial bonding, supports stable adhesion on curved and wet tissues under dynamic motion, and provides a versatile platform for robust biointerfacing and future ...
Jongchan Lee, Yeongjun Song, Yonghyun Cho, Hyo In Kim, Dong‐Hyun Youn, Jinbong Park, Seungbeom Choi, Dohyun Kwon, Brian Jun Lee, Sangyul Baik   +9 more
wiley   +1 more source

Rapid photo‐responsive dynamic disulfide strategy for accessing self‐healing, reconfigurable shape of high‐strength shape memory polyurethane

Responsive Materials
Enabling soft shape memory polyurethane (SMPU) with self‐healing is an effective strategy to extend its service life; however, the tradeoff between high mechanical strength and rapid self‐healing to meet the practical applications remains a challenge ...
Qingxiang Zhang, Jing Yang, Kai Zhou, Nan Zhang, Xianqiang Pei, Xinrui Zhang, Shoubing Chen, Heming Luo, Tingmei Wang, Qihua Wang, Yaoming Zhang   +10 more
doaj   +1 more source