In situ realization of asymmetric ratchet structures within microchannels by directionally guided light transmission and their directional flow behavior

Won-Gyu Bae; Sang Moon Kim; Se-Jin Choi; Sang Geun Oh; Hyunsik Yoon; Kookheon Char; Kahp Y Suh

doi:10.1002/adma.201305001

In situ realization of asymmetric ratchet structures within microchannels by directionally guided light transmission and their directional flow behavior

Adv Mater. 2014 May;26(17):2665-70, 2614. doi: 10.1002/adma.201305001. Epub 2014 Mar 14.

Authors

Won-Gyu Bae¹, Sang Moon Kim, Se-Jin Choi, Sang Geun Oh, Hyunsik Yoon, Kookheon Char, Kahp Y Suh

Affiliation

¹ School of Mechanical & Aerospace Engineering, Seoul National University, Seoul, 151-742, Republic of Korea; Interdisciplinary Program of Bioengineering, Seoul National University, Seoul, 151-742, Republic of Korea.

PMID: 24634358
DOI: 10.1002/adma.201305001

Abstract

An asymmetric ratchet structure within microchannels is demonstrated by directionally guided light transmission for controlled liquid flow. A direct and facile method is presented to realize programmed asymmetric structures, which control the fluid direction and speed.

Keywords: asymmetric structures; directional transmission; integration; lucius prism array; microchannel.

Publication types

Research Support, Non-U.S. Gov't