Li Jingang, Lin Linhan, Inoue Yuji, Zheng Yuebing
Materials Science and Engineering Program and Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712.
Materials Science and Engineering Program and Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712 e-mail:
J Micro Nanomanuf. 2018 Dec;6(4):0408011-4080110. doi: 10.1115/1.4041615. Epub 2018 Oct 18.
Opto-thermophoretic manipulation is an emerging field, which exploits the thermophoretic migration of particles and colloidal species under a light-controlled temperature gradient field. The entropically favorable photon-phonon conversion and widely applicable heat-directed migration make it promising for low-power manipulation of variable particles in different fluidic environments. By exploiting an optothermal substrate, versatile opto-thermophoretic manipulation of colloidal particles and biological objects can be achieved via optical heating. In this paper, we summarize the working principles, concepts, and applications of the recently developed opto-thermophoretic techniques. Opto-thermophoretic trapping, tweezing, assembly, and printing of colloidal particles and biological objects are discussed thoroughly. With their low-power operation, simple optics, and diverse functionalities, opto-thermophoretic manipulation techniques will offer great opportunities in materials science, nanomanufacturing, life sciences, colloidal science, and nanomedicine.
光热泳操控是一个新兴领域，它利用在光控温度梯度场下颗粒和胶体物质的热泳迁移。熵有利的光子 - 声子转换以及广泛适用的热导向迁移使其在不同流体环境中对可变颗粒进行低功率操控方面具有前景。通过利用光热基板，可通过光学加热实现对胶体颗粒和生物物体的多功能光热泳操控。在本文中，我们总结了最近开发的光热泳技术的工作原理、概念和应用。对胶体颗粒和生物物体的光热泳捕获、镊子操作、组装和打印进行了深入讨论。凭借其低功率运行、简单光学系统和多样功能，光热泳操控技术将在材料科学、纳米制造、生命科学、胶体科学和纳米医学中提供巨大机遇。
