Digital liquid-liquid microextraction

Y. W. Hsu, Chiun-Hsun Chen, S. K. Fan*

*Corresponding author for this work

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

Abstract

In this paper, we demonstrated the method to control the concentration after liquid-liquid extraction by generating an encapsulated droplet with precisely controlled water to oil volume ratio by merging individually created aqueous and organic droplets through EWOD (electrowetting-on-dielectric) actuation. In addition, the core and shell droplets were separated after the extraction process by applying EWOD and DEP (dielectrophoresis) forces to manipulating aqueous and organic droplets, respectively. Herein, the minimum concentration in the aqueous droplet was 0.001 mM and the minimum organic droplet volume was 2.5 nl.

Original languageEnglish
Title of host publication2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
Pages1248-1251
Number of pages4
DOIs
StatePublished - 1 Sep 2011
Event2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11 - Beijing, China
Duration: 5 Jun 20119 Jun 2011

Publication series

Name2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11

Conference

Conference2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
CountryChina
CityBeijing
Period5/06/119/06/11

Keywords

  • dielectrophoresis
  • droplet encapsulation and extraction
  • electrowetting-on-dielectric

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