SOLVENT SHIFTING APPROACH FOR DROPLET GENERATION IN A MICROFLUIDIC DEVICE

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HAJIAN RAMIN; DAGA ASHISH; HARDT STEFFEN

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Journal: JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR) Year:2016 | Volume:48 | Issue:3 Page(s): 323-329

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Information Journal Paper

Title

SOLVENT SHIFTING APPROACH FOR DROPLET GENERATION IN A MICROFLUIDIC DEVICE

Author(s)

HAJIAN RAMIN | DAGA ASHISH | HARDT STEFFEN | Issue Writer Certificate

Keywords

DROPLET GENERATIONQ2

MICROFLUIDICSQ2

SOLVENT SHIFTINGQ2

OUZO EFFECTQ2

MARANGONI CONVECTIONQ2

Abstract

A novel approach for microfluidic DROPLET GENERATION via “solvent shifting” is presented in this paper based on an experimental investigation. In a 3D co-flow configuration with a jet of ethanol/oil mixture surrounded by water flow, the lateral diffusion leads to supersaturation followed by a phase separation and consequently formation of oil nanodroplets. Due to the solutal Marangoni effect the nanodroplets migrate inward and they get collected at the channel centerline. For high concentrations of the oil the density of the nanodroplets is so high that they can merge and produce microdroplets. If the mixture contains 10% oil, the average diameter of the produced microdroplets is within the range 10-30 mm for various jet flow rates. The size of microdroplets increases with the flow rate of the jet. Overall, for the first time we show that it is practical to generate microdroplets of different sizes by SOLVENT SHIFTING approach in a microfluidic setup.

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APA: Copy

HAJIAN, RAMIN, DAGA, ASHISH, & HARDT, STEFFEN. (2016). SOLVENT SHIFTING APPROACH FOR DROPLET GENERATION IN A MICROFLUIDIC DEVICE. JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR), 48(3), 323-329. SID. https://sid.ir/paper/165887/en

Vancouver: Copy

HAJIAN RAMIN, DAGA ASHISH, HARDT STEFFEN. SOLVENT SHIFTING APPROACH FOR DROPLET GENERATION IN A MICROFLUIDIC DEVICE. JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR)[Internet]. 2016;48(3):323-329. Available from: https://sid.ir/paper/165887/en

IEEE: Copy

RAMIN HAJIAN, ASHISH DAGA, and STEFFEN HARDT, “SOLVENT SHIFTING APPROACH FOR DROPLET GENERATION IN A MICROFLUIDIC DEVICE,” JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR), vol. 48, no. 3, pp. 323–329, 2016, [Online]. Available: https://sid.ir/paper/165887/en

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