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Thermosensation

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Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...

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Related Experiment Video

Updated: Nov 12, 2025

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

Opto-Thermophoretic Manipulation.

Shaofeng Liu¹, Linhan Lin¹, Hong-Bo Sun^1,2

¹State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Haidian, Beijing 100084, China.

|March 18, 2021

Summary

This summary is machine-generated.

Opto-thermophoretic manipulation uses light-generated heat to move tiny objects efficiently. This technique offers a low-power alternative to traditional optical tweezers for applications in materials and life sciences.

Keywords:

colloidal matter disease diagnosis molecular analysis molecule manipulation optical assembly optical manipulation optical trapping opto-thermophoretic manipulation thermophoresis

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Last Updated: Nov 12, 2025

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Area of Science:

Optics
Thermodynamics
Materials Science
Life Science

Background:

Optical manipulation of micro-objects is crucial for exploring the microworld.
Traditional optical tweezers require high power and complex optics.
Opto-thermophoretic techniques offer efficient manipulation with low optical power.

Purpose of the Study:

To review the mechanisms and applications of opto-thermophoretic manipulation.
To highlight advancements in opto-thermophoretic technology.
To discuss the potential of these techniques in colloidal and life sciences.

Main Methods:

Exploration of opto-thermomechanical coupling.
Rational design of light-generated temperature gradients.
Investigation of target object responses to temperature gradients.

Main Results:

Opto-thermophoresis enables efficient manipulation of diverse targets, including colloids, cells, and biomolecules.
Development of various opto-thermophoretic techniques with broad applicability.
Demonstration of low optical power requirements compared to traditional methods.

Conclusions:

Opto-thermophoretic manipulation is a promising low-power alternative for micro-object handling.
These techniques have significant potential in colloidal science and life science applications.
Further research is needed to address existing challenges and unlock future development.