相关实验视频
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08:34
Visualization of High Speed Liquid Jet Impaction on a Moving Surface
Published on: April 17, 2015
液体在光响应表面上的光驱动运动
1Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
Science (New York, N.Y.)
|June 2, 2000
概括
研究人员展示了光驱动的液体运动在表面. 修改后的单层的不对称光辐射产生了表面自由能量梯度,可控制地指导滴滴运动,具有微观系统的潜力.
科学领域:
- 表面科学是一门学科.
- 材料化学 材料化学
- 流体动力学 流体动力学
背景情况:
- 控制表面上的宏观液体运动对于各种应用至关重要.
- 光异构化单层在暴露于光线时提供可调整的表面特性.
研究的目的:
- 通过光辐射研究在固体表面对宏观液体运动的操纵.
- 探索可光异构化单层在控制流体动力学方面的潜力.
主要方法:
- 一个液滴被放置在一个覆盖着含有亚博烯单位的酸[4]酸衍生物的基板上.
- 应用了不对称的光辐射来诱导光异构化并创建表面自由能量梯度.
- 在不同的光强度梯度下,分析了滴水运动的方向和速度.
主要成果:
- 不对称的光辐射诱导了表面自由能量的梯度,导致液滴的方向运动.
- 通过调整光强度梯度,成功调整了滴滴运动的方向和速度.
- 在表面修改的玻璃管中观察到光驱动的流体运动,这表明了微观应用的潜力.
结论:
- 光异构化单层可以可逆地控制表面上的宏观液体运动.
- 开发的方法提供了可调节的控制流体的方向和速度使用光.
- 这种技术对微量化化学过程系统的应用非常有前途.
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