单个人类角质细胞的湿度依赖粘弹性在纳米级接触使用AFM强光谱用于触觉设计考虑
Perawat Boonpuek1, Thanathip Boonmatoon1,2, Prasert Aengchuan1
1School of Manufacturing Engineering, Institute of Engineering, Suranaree University of Technology, 111 University Avenue, Suranaree Subdistrict, Muang, Nakhon Ratchasima 30000, Thailand.
Langmuir : the ACS journal of surfaces and colloids
|December 22, 2025
概括
湿度显著影响指尖皮肤.
科学领域:
- 生物力学和纳米三角学
- 生物材料科学 生物材料科学
- 人与计算机的交互
背景情况:
- 人的指尖皮肤是触觉触摸屏的主要接口.
- 皮肤的粘弹性特性对于触摸相互作用至关重要,但在纳米尺度上还没有完全表征.
- 角质细胞是皮肤外层的关键细胞,具有尚未探索的粘性弹性特性,与触摸相关.
研究的目的:
- 量化角细胞的线性粘弹性特性.
- 在模拟触摸条件下研究湿度对角质细胞粘弹性的影响.
主要方法:
- 原子力显微镜 (AFM) 使用停留时间技术进行力图绘制.
- 模拟的单触式交互与5nN的恒定负载.
- 在五个不同的湿度水平进行测试.
主要成果:
- 湿度显著影响角质细胞粘弹性行为.
- 增加湿度将压力放松和特征性放松时间减少约两倍.
- 角细胞在3秒内表现出快速的压力放松,特别是在较高的湿度下.
结论:
- 角质细胞粘弹性对环境湿度高度敏感.
- 湿度水平可以显著缓和触觉设备中的皮肤表面接触的机械强度.
- 这些发现对于设计先进的触觉反系统和了解皮肤生物力学至关重要.
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