With the aim toward realizing polymerase chain reaction (PCR) of deoxyribonucleic acid (DNA) in plug-based capillary platforms, this paper reports the theoretical and experimental results of thermocapillary actuation for temperature cycling with an arbitrary ramping function. Two concepts were investigated: (a) actuation and spatial temperature cycling with three heaters and (b) actuation and temporal cycling with two heaters. The paper first describes the analytical models of both concepts. The model considers both the transient and coupling effect between heat transfer in the capillary wall and the surface tension driven movement of the plug. In the experiments, both temperature field and plug motion were measured and evaluated. The temperature field were captured by an infrared thermo tracer camera. The position of the plugs was automatically captured and evaluated with a CCD camera. Finally, analytical and experimental results are compared and discussed.
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ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer
June 6–9, 2008
Tainan, Taiwan
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4292-4
PROCEEDINGS PAPER
Thermocapillary Actuation and Cycling of Liquid Plugs Available to Purchase
Zhenjun Jiao,
Zhenjun Jiao
Nanyang Technological University, Singapore
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Nam-Trung Nguyen,
Nam-Trung Nguyen
Nanyang Technological University, Singapore
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Xiaoyang Huang
Xiaoyang Huang
Nanyang Technological University, Singapore
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Zhenjun Jiao
Nanyang Technological University, Singapore
Nam-Trung Nguyen
Nanyang Technological University, Singapore
Xiaoyang Huang
Nanyang Technological University, Singapore
Paper No:
MNHT2008-52146, pp. 1069-1075; 7 pages
Published Online:
June 22, 2009
Citation
Jiao, Z, Nguyen, N, & Huang, X. "Thermocapillary Actuation and Cycling of Liquid Plugs." Proceedings of the ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer. ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer, Parts A and B. Tainan, Taiwan. June 6–9, 2008. pp. 1069-1075. ASME. https://doi.org/10.1115/MNHT2008-52146
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