A microfluidic droplet serial dilutor with enhanced mixing

Hoon Suk Rho*, Yoonsun Yang, Leon W.M.M. Terstappen, Pamela Habibovic, Séverine Le Gac

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingAcademicpeer-review

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Abstract

We present the development of an automated microfluidic platform that is capable of creating logarithmic serial dilution by adapting pneumatically actuated microvalves. A valve-assisted droplet manipulator integrated with a peristaltic mixer allowed the accurate formation of droplets with controlled sizes and the dilution of reagent sequentially. Hence, serial dilution with flexible dilution factors was obtained in a series of nanoliter-scale droplets. We validated the mixing efficiency and droplet generating performance of the chip at various operating conditions and demonstrated an example of logarithmic serial dilution with two different dilution factors. The microfluidic droplet serial dilutor could be used as an analytical tool to evaluate various complex chemical and biochemical reactions.
Original languageEnglish
Title of host publication22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018
PublisherChemical and Biological Microsystems Society
Pages1114-1116
Number of pages3
Volume2
ISBN (Electronic)9781510897571
Publication statusPublished - 1 Jan 2018
Event22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences - Kaohsiung, Taiwan
Duration: 11 Nov 201815 Nov 2018
Conference number: 22

Conference

Conference22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences
Abbreviated titleMicroTAS 2018
Country/TerritoryTaiwan
CityKaohsiung
Period11/11/1815/11/18

Keywords

  • Droplets
  • Microfluidics
  • Microvalves
  • Serial dilution

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