A new platform for manipulation and separation of oil-in-water emulsion droplets using optically induced dielectrophoresis

Shih Hsun Hung, Yen Heng Lin, Gwo Bin Vincent Lee

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

1 Scopus citations

Abstract

A new platform for manipulation and separation of oil-in-water emulsion droplets by using optically induced dielectrophoresis (ODEP) is reported. By utilizing different scanning speeds of a moving light beam, the oil-in-water emulsion droplets can be moved and separated with a high separation resolution. Several new applications such as pre-separation and fine separation of emulsion droplets were presented. Three different sized droplets (40-43 μm, 20-30 μm and 2-8 μm) can be roughly separated first, which demonstrates the capability of the developed method for pre-separation of emulsion droplets. The fine separation of droplets with a radius of 17.5 μm and 20 μm is then performed using a moving light beam with gradual gradient of moving speeds. To avoid the collision and overlapping of the droplets, a new approach with which individual moving track for each droplet can be achieved by using well-defined moving light pattern, is adopted. Accordingly, droplets with five sizes (30, 20, 10, 7.5, and 5 μm) are successfully separated.

Original languageEnglish
Title of host publicationTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
Pages1246-1249
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

  • Emulsion droplets
  • Manipulation
  • Optically-induced dielectrophoresis
  • Separation

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