共查询到20条相似文献,搜索用时 15 毫秒
1.
Caterina Tomba Tatiana Petithory Riccardo Pedron Aissam Airoudj Ilaria Di Meglio Aurlien Roux Valeriy Luchnikov 《Small (Weinheim an der Bergstrasse, Germany)》2019,15(21)
Endothelial and epithelial cells usually grow on a curved environment, at the surface of organs, which many techniques have tried to reproduce. Here a simple method is proposed to control curvature of the substrate. Prestrained thin elastomer films are treated by infrared laser irradiation in order to rigidify the surface of the film. Wrinkled morphologies are produced upon stress relaxation for irradiation doses above a critical value. Wrinkle wavelength and depth are controlled by the prestrain, the laser power, and the speed at which the laser scans the film surface. Stretching of elastomer substrates with a “sand clock”‐width profile enables the generation of a stress gradient, which results in patterns of wrinkles with a depth gradient. Thus, different combinations of topography changes on the same substrate can be generated. The wavelength and the depth of the wrinkles, which have the characteristic values within a range of several tens of µm, can be dynamically regulated by the substrate reversible stretching. It is shown that these anisotropic features are efficient substrates to control polarization of cell shapes and orientation of their migration. With this approach a flexible tool is provided for a wide range of applications in cell biophysics studies. 相似文献
2.
3.
4.
5.
6.
7.
8.
9.
10.
Asymmetrical Micro‐Supercapacitors: Laser‐Assisted Large‐Scale Fabrication of All‐Solid‐State Asymmetrical Micro‐Supercapacitor Array (Small 37/2018) 下载免费PDF全文
Jian Gao Changxiang Shao Shengxian Shao Feng Wan Chang Gao Yang Zhao Lan Jiang Liangti Qu 《Small (Weinheim an der Bergstrasse, Germany)》2018,14(37)
11.
12.
13.
14.
15.
16.
17.
Cell‐Membrane Engineering: Engineering Cell Surface Function with DNA Origami (Adv. Mater. 46/2017) 下载免费PDF全文
Ehsan Akbari Molly Y. Mollica Christopher R. Lucas Sarah M. Bushman Randy A. Patton Melika Shahhosseini Jonathan W. Song Carlos E. Castro 《Advanced materials (Deerfield Beach, Fla.)》2017,29(46)
18.
19.