Abstract
We demonstrate a novel concept to heat a drop. Temperature rise occurs when high frequency (10-50 kHz) AC actuation voltage (270 Vrms-460 Vrms) is applied on the dielectric coated coplanar electrodes. The temperature rise (up to 40 °C) inside the drop provides calibrated high temperatures for enabling chemical reactions on Lab-on a-Chip devices. Droplet spreading along the electrode gap happens as this actuation regime also coincides with dielectrophoresis. The proposed technique does not require separate microheaters on the chip as electrodes designed for droplet actuation can be used to achieve localized heating.
Original language | English (US) |
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Title of host publication | 21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017 |
Publisher | Chemical and Biological Microsystems Society |
Pages | 1411-1412 |
Number of pages | 2 |
ISBN (Electronic) | 9780692941836 |
State | Published - 2020 |
Event | 21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017 - Savannah, United States Duration: Oct 22 2017 → Oct 26 2017 |
Publication series
Name | 21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017 |
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Conference
Conference | 21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017 |
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Country/Territory | United States |
City | Savannah |
Period | 10/22/17 → 10/26/17 |
Bibliographical note
Funding Information:The authors would like to thank Nonlinear Photonics and High Power Lasers Laboratory, Centre for Nano Science and Engineering for providing us the thermal camera. The authors would also like to thank SERB, Department of Science & Technology for the financial support and National Nanofabrication Centre for the device fabrication.
Publisher Copyright:
© 17CBMS-0001.
Keywords
- Direct heating
- Electrothermal flows
- Joule heating
- Temperature rise