EWOD based microfluidic system with coplanar electrodes for parallel DNA ligation of ultramicro volume

H. C. Lin, Y. J. Liu, D. J. Yao, H. Y. Chang

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

Abstract

This paper reports the completion of a parallel ultramicro-volume DNA ligation processes using a coplanar electrode type of electrowetting-on- dielectric (EWOD) microfluidic system. The droplets, containing DNA, a ligation enzyme and a multi-salt reaction buffer, served to complete the ligation using a developed EWOD system. In order to reduce the effect from environment, so the concept of core-shell droplet was used in this study. Droplets of ultramicro volume (0.3μL) were successfully generated from reservoirs between one plate with coplanar electrodes and another plate with a hydrophobic surface free of electrodes. In one successful cloning, the total usage of reagents in an ultramicro-volume EWOD chip was 2.1μL; no volume was wasted, in comparison with 85% waste with the standard protocol (15μL). The results also show that the four parallel DNA ligation processes were accomplished without damage to the chip surface and without biomaterial annulment.

Original languageEnglish
Title of host publicationTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
Pages92-95
Number of pages4
DOIs
StatePublished - 2009
Externally publishedYes
EventTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems - Denver, CO, United States
Duration: 21 06 200925 06 2009

Publication series

NameTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems

Conference

ConferenceTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
Country/TerritoryUnited States
CityDenver, CO
Period21/06/0925/06/09

Keywords

  • Coplanar
  • DNA ligation
  • EWOD
  • Ultramicro volume

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