Title
Liquid crystal pump
Abbreviated Journal Title
Lab Chip
Keywords
FOCAL LENGTH; LENS; VOLTAGE; LIGHT; DISPLAYS; DROPLET; Biochemical Research Methods; Chemistry, Multidisciplinary; Nanoscience; & Nanotechnology
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.
Journal Title
Lab on a Chip
Volume
13
Issue/Number
1
Publication Date
1-1-2013
Document Type
Article
DOI Link
Language
English
First Page
100
Last Page
105
WOS Identifier
ISSN
1473-0197
Recommended Citation
"Liquid crystal pump" (2013). Faculty Bibliography 2010s. 4595.
https://stars.library.ucf.edu/facultybib2010/4595
Comments
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