Format

Send to

Choose Destination
Proc Natl Acad Sci U S A. 2014 Mar 4;111(9):3304-9. doi: 10.1073/pnas.1319878111. Epub 2014 Feb 18.

Liquid metal enabled pump.

Author information

1
School of Electrical and Computer Engineering, School of Media and Communication, and School of Applied Sciences , Royal Melbourne Institute of Technology University, Melbourne, VIC 3001, Australia.

Abstract

Small-scale pumps will be the heartbeat of many future micro/nanoscale platforms. However, the integration of small-scale pumps is presently hampered by limited flow rate with respect to the input power, and their rather complicated fabrication processes. These issues arise as many conventional pumping effects require intricate moving elements. Here, we demonstrate a system that we call the liquid metal enabled pump, for driving a range of liquids without mechanical moving parts, upon the application of modest electric field. This pump incorporates a droplet of liquid metal, which induces liquid flow at high flow rates, yet with exceptionally low power consumption by electrowetting/deelectrowetting at the metal surface. We present theory explaining this pumping mechanism and show that the operation is fundamentally different from other existing pumps. The presented liquid metal enabled pump is both efficient and simple, and thus has the potential to fundamentally advance the field of microfluidics.

PMID:
24550485
PMCID:
PMC3948272
DOI:
10.1073/pnas.1319878111
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for HighWire Icon for PubMed Central
Loading ...
Support Center