Title

Liquid Crystal Pump

Abstract

We report a dielectrically actuated liquid crystal (LC) pump. A small volume of LC forms a pillar-like droplet in a cylindrical hole which partially touches the bottom substrate with embedded interdigitated electrodes. By applying a voltage, the LC droplet can be largely stretched along the electrode direction by the generated dielectric force, which in turn exerts a pressure to displace a small volume of fluid on the opposite side of the chamber. Once the voltage is removed, the LC droplet returns to its initial state. The LC droplet with such a reciprocating movement behaves like a pump. In this work, the actuation mechanism of the LC pump is presented and the performance evaluated experimentally. Our LC pump has the following advantages: simple structure, easy fabrication, compact size, high precision, low power consumption, and relatively fast response time. It is promising for applications in lens actuators, biotechnology, drug delivery, and other lab-on-a-chip devices. © The Royal Society of Chemistry.

Publication Date

1-7-2013

Publication Title

Lab on a Chip

Volume

13

Issue

1

Number of Pages

100-105

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1039/c2lc40953d

Socpus ID

84870207342 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84870207342

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