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Mechanisms of Membrane-bending

Mechanisms of Membrane-bending

The living membranes are flexible due to their fluid mosaic nature; however, their bending into different shapes is an active process regulated by specific lipids and proteins. The membrane bending can be transient as seen in vesicles or stable for a long time as in microvilli. Cells regulate the size, location, and duration of the membrane curvature.
Membrane bending can happen due to intrinsic changes in lipid composition or extrinsic association with different proteins. The proteins involved...

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Updated: May 7, 2026

Gradient Strain Chip for Stimulating Cellular Behaviors in Cell-laden Hydrogel

Gradient Strain Chip for Stimulating Cellular Behaviors in Cell-laden Hydrogel

Published on: August 8, 2017

从基于CNT的双层水凝中获得NIR介导的变形.

Shijun Long^1,2,3, Chang Liu¹, Han Ren¹

¹Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, China.

|April 27, 2024

概括

此摘要是机器生成的。

研究人员使用碳纳米管 (CNT) 开发了先进的改变形状的水凝,以提高机械强度和近红外光 (NIR) 响应能力. 这些新型材料使复杂的变形成为可能,为复杂的软执行器和机器人铺平了道路.

关键词:

执行器执行器的执行器碳纳米管是如何使用的粒子双网是指一个粒子双网.光热转换的光热转换对温度有反应的水凝.

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Last Updated: May 7, 2026

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科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学
纳米技术纳米技术

背景情况:

改变形状的聚合物对于软机器人和传感器等应用至关重要,要求响应性和机械强度.
现有的材料往往难以平衡多种刺激-反应能力与高机械强度.

研究的目的:

设计和制造一种新的近红外光 (NIR) 响应型变形水凝系统.
为了提高水凝的机械性能和光响应性,用于先进的执行器应用.

主要方法:

嵌入vinylsilane-modified碳纳米管 (CNTs) 进入粒子双网 (P-DN) 水凝通过微粒共聚合.
使用易碎的聚二烯胺-2-甲基-1-硫酸盐 (PNaAMPS) 网络作为固的牺牲债券.
纳入NIR光热转换能力的CNT.

主要成果:

嵌入 CNT 的 P-DN 水凝具有出色的机械强度,破裂强度为 312 kPa,破裂应变率为 357%.
一个不对称的双层水凝在NIR照射下在10分钟内显示出0°-110°曲变形.
实现了复杂的变形运动,展示了材料在软执行器方面的潜力.

结论:

开发的水凝系统为创建强大的光响应软执行器提供了一个有前途的平台.
这项研究为制造由NIR光激活的先进形状变换材料提供了理论和实验基础.