Thermally mediated droplet formation in microchannels

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Thermally mediated droplet formation in microchannels

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Title: Thermally mediated droplet formation in microchannels
Author: Nguyen, Nam-Trung; Ting, Teck-Hui; Yap, Yit Fatt; Wong, Teck Neng; Chai, John Chee Kiong; Ong, Wee-Liat; Zhou, Junlong; Tan, Say-Hwa; Yobas, Levent
Copyright year: 2007
Abstract: Precise dispensing of microdroplets is an important process for droplet-based microfluidics. The droplet formation by shear force between two immiscible fluids depends on their flow rates, the viscosities, and the interfacial tension. In this letter, the authors report the use of integrated microheater and temperature sensor for controlling the droplet formation process. The technique exploits the dependency on temperature of viscosities and interfacial tension. Using a relatively low heating temperature ranging from 25 to 70 °C, the droplet diameter can be adjusted to over two times of its original value. The relatively low temperature range makes sure that this concept is applicable for droplets containing biological samples
Subject: DRNTU::Engineering::Mechanical engineering
Type: Journal Article
Series/ Journal Title: Applied physics letters
School: School of Mechanical and Aerospace Engineering
Rights: © 2007 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at DOI: [http://link.aip.org/link/doi/10.1063/1.2773948]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Version: Published version

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