Related Experiment Video
Updated: Sep 4, 2025
06:53
Use of Dual Optical Tweezers and Microfluidics for Single-Molecule Studies
Published on: November 18, 2022
2.3K
Opto-Thermophoretic Tweezers and Assembly
Jingang Li1, Linhan Lin1, Yuji Inoue1
1Materials Science and Engineering Program and Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712.
Journal of Micro- and Nano-Manufacturing
|July 14, 2022
Summary
Opto-thermophoretic manipulation uses light-controlled heat gradients to move particles. This low-power technique shows promise for manipulating diverse materials in various fluidic settings.
Area of Science:
- Physics
- Materials Science
- Biotechnology
Background:
- Opto-thermophoretic manipulation leverages light-induced temperature gradients for particle movement.
- Photon-phonon conversion and heat-directed migration enable low-power manipulation in diverse fluids.
Purpose of the Study:
- To summarize principles, concepts, and applications of opto-thermophoretic techniques.
- To highlight versatile manipulation of particles and biological objects using optothermal substrates.
Main Methods:
- Utilizing an optothermal substrate for optical heating.
- Generating light-controlled temperature gradients for thermophoretic migration.
Main Results:
- Demonstrated opto-thermophoretic trapping, tweezing, assembly, and printing.
- Achieved versatile manipulation of colloidal particles and biological objects.
Conclusions:
- Opto-thermophoretic manipulation offers low-power, simple optics, and diverse functionalities.
- Techniques present significant opportunities in materials science, nanomanufacturing, life sciences, colloidal science, and nanomedicine.
