Jiménez Amaya Ana, Hill Eric H
Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.
The Hamburg Center for Ultrafast Imaging (CUI), Luruper Chaussee 149, 22761 Hamburg, Germany.
Langmuir. 2025 Jun 3;41(21):12835-12840. doi: 10.1021/acs.langmuir.5c01023. Epub 2025 May 13.
Thermophoresis, the movement of molecules and colloids under a thermal gradient, has been recently shown to be effective for localized trapping, manipulation, and even printing of colloidal particles at interfaces. However, the lack of a broader understanding of the behavior of various molecules and colloidal species poses a challenge to the ongoing development of thermophoresis as a tool for patterning and assembly. In this Perspective, we discuss the thermophoresis of colloids, highlighting the barriers to understanding and predicting these complex systems, as well as recent approaches for measuring and predicting thermophoretic behavior. Further development of thermophoresis-based patterning techniques is crucial to unlocking their potential to advance the field of optically driven colloidal assembly, and critical for the rapid, on-demand fabrication of sensors and devices.
热泳现象，即分子和胶体在热梯度作用下的移动，最近已被证明在界面处对胶体颗粒进行局部捕获、操控甚至打印方面是有效的。然而，对各种分子和胶体种类行为缺乏更广泛的了解，给热泳作为一种图案化和组装工具的持续发展带来了挑战。在这篇视角文章中，我们讨论了胶体的热泳现象，强调了理解和预测这些复杂系统的障碍，以及测量和预测热泳行为的最新方法。基于热泳的图案化技术的进一步发展对于释放其推动光驱动胶体组装领域发展的潜力至关重要，并且对于传感器和器件的快速按需制造也至关重要。
