Droplet Splitting in 3D Trifurcating Microchannel

Research output: Contribution to conferencePaper

Abstract

In this paper, we present a modular microfluidic platform for lab-on-chip (LoC) device that enable a single liquid droplet split into 3 daughter droplets which was never being reported elsewhere. Using Poly(dimethylsiloxane) (PDMS) as structural material, a bilayer of 3D microchannel design consisting of constriction formed by trifurcating junction is constructed via rapid prototyping method. The design of the trifurcating 3D microstructure consists of a top layer that has a pair of 1 cm radius curvature microstructure junctions aligned to a bottom layer that contains straight microchannel with a Tjunction upstream. Both top and bottom microchannel layer has a constant microchannel width and height of 250 micrometer and 100 micrometer respectively. The preliminary result of this novel microstructure shows that the droplet size formed at all three junctions have range from 152-214 micrometer feret diameter at continuous phase flowrate range of 4-10 microliter per minute. Besides, the coefficient of variation (CV) of droplets formed is approximately 7% and the droplet size ratio, which is the size of droplet formed to channel width for all three daughter droplets formed, is found to be in the range of 0.61 to 0.85.
Original languageEnglish
Number of pages4
Publication statusPublished - 12 Mar 2018
Event6th Annual International Conference on Chemistry, Chemical Engineering and Chemical Process - Singapore , Singapore
Duration: 12 Mar 201813 Mar 2018

Conference

Conference6th Annual International Conference on Chemistry, Chemical Engineering and Chemical Process
Abbreviated titleCCECP 2018
CountrySingapore
CitySingapore
Period12/03/1813/03/18

Keywords

  • microfluidic
  • droplet splitting
  • curvature junction splitting
  • lab on chip (loc)
  • modular microfluidic

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  • Cite this

    Koh, K. S. (2018). Droplet Splitting in 3D Trifurcating Microchannel. Paper presented at 6th Annual International Conference on Chemistry, Chemical Engineering and Chemical Process, Singapore , Singapore.