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Updated: Nov 27, 2025

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Thermal Measurement Techniques in Analytical Microfluidic Devices
Published on: June 3, 2015
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Thermophoretic Micron-Scale Devices: Practical Approach and Review.
Namkyu Lee1, Simone Wiegand1,2
1Institute of Biological Information Processing (IBI-4: Biomacromolecular Systems and Processes) & JARA-SOFT, Forschungszentrum Jülich GmbH, D-52428 Jülich, Germany.
Entropy (Basel, Switzerland)
|December 8, 2020
Summary
Micron-scale devices use thermal gradients for molecule manipulation and thermophoretic property measurement. This review covers state-of-the-art devices for biological and chemical applications.
Area of Science:
- Physics
- Chemistry
- Biotechnology
Background:
- Growing interest in micron-scale devices for manipulating molecules and colloids using thermal gradients.
- Existing devices include on-chip implements, micro-thermogravitational columns, and thermophoretic cells.
- Miniaturized devices offer reduced sample volume and enable direct particle observation.
Purpose of the Study:
- To review the state-of-the-art in thermophoretic micron-scale devices.
- To provide researchers with an orientation for developing new devices.
- To highlight applications in biological, chemical, analytical, and medical fields.
Main Methods:
- Focus on generating temperature gradients in micron-scale devices.
- Discussion of precise temperature measurement techniques at small length scales.
- Analysis of existing micron-scale thermophoretic devices.
Main Results:
- Overview of various realized micron-scale thermophoretic devices.
- Identification of technical challenges, particularly in precise temperature measurement.
- Summary of current advancements and device capabilities.
Conclusions:
- Micron-scale thermophoretic devices are advancing rapidly.
- Precise temperature measurement remains a key challenge.
- These devices hold significant potential for diverse scientific and medical applications.

