使用可见光可逆调整基于的溶液的粘度
Simona Bianco1, Laura Wimberger2, Yael Ben-Tal3
1School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK.
Chemistry (Weinheim an der Bergstrasse, Germany)
|February 26, 2024
概括
研究人员开发了光控制的凝系统. 辐射可逆地改变凝器组件,使响应性材料能够对流体流量进行非侵入性,按需控制.
科学领域:
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
- 摄影化学的使用.
背景情况:
- 响应刺激的材料提供了对物理性质的动态控制.
- 用外部触发器控制材料组装对于先进的应用至关重要.
- 光酸可以在暴露于光线时调解化学变化.
研究的目的:
- 设计一种光感应系统,用于控制低分子量凝器的组装.
- 用光来证明粘度的可逆变化.
- 建立一种非侵入性,按需控制材料流的方法.
主要方法:
- 作为一个光敏感元件,它使用了一种梅洛胺光酸.
- 研究了光照射对低分子量凝溶液的影响.
- 监测凝器系统的组装和质特性 (粘度) 的变化.
主要成果:
- 通过使用光在凝溶液组合中成功诱导过渡变化.
- 在辐射后在系统中实现可逆粘度变化.
- 证明了非侵入性地控制材料的流动性能的能力.
结论:
- 光可以有效地触发和逆转特定的低分子量凝器的组装.
- 这种光化学控制的系统允许按需操纵材料粘度和流量.
- 开发的方法为创建具有可调节性质的先进刺激响应材料提供了一条途径.
相关概念视频
UV–Vis Spectrometers
The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell. Samples for...
Imaging Biological Samples with Optical Microscopy
Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...


