期刊
CHEM
卷 8, 期 8, 页码 2290-2300出版社
CELL PRESS
DOI: 10.1016/j.chempr.2022.06.017
关键词
-
资金
- European Research Council (ERC Consolidator Grant) [Morpheus 772564]
- Dutch Research Council [NWO ECHO 712.017.003]
- Volkswagen Foundation [93424]
This study demonstrates the control of autonomous motion of oil droplets in water using photoactive micelles and highlights the interplay between molecular photochemistry and microscopic motility, providing new insights for the rational design of motile systems.
Microscopic motility is a property that emerges from systems of interacting molecules. Unraveling the mechanisms underlying such motion requires coupling the chemistry of molecules with physical processes that operate at larger length scales. Here, we show that photoactive micelles composed of molecular switches gate the autonomous motion of oil droplets in water. These micelles switch from large trans-micelles to smaller cis-micelles in response to light, and only the trans-micelles are effective fuel for the motion. Ultimately, it is this light that controls the movement of the droplets via the photochemistry of the molecules composing the micelles used as fuel. Notably, the droplets evolve positive photokinetic movement, and in patchy light environments, they preferentially move toward peripheral areas as a result of the difference in illumination conditions at the periphery. Our findings demonstrate that engineering the interplay between molecular photo-chemistry and microscopic motility allows designing motile systems rationally.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据