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Nanomesh fluidic filter using self-assembly of colloidal nanospheres and surface tension

Authors :
Youngho Seo
Source :
Applied Physics Letters. 90:123514
Publication Year :
2007
Publisher :
AIP Publishing, 2007.

Abstract

A simple and inexpensive method of fabricating a nanofluidic filter was developed by using self-assembly of colloidal nanospheres and surface tension. Colloid plug formed by surface tension in the microchannel was evaporated, then the nanospheres in a colloid were orderly stacked by capillary force. The porosity and mean pore size of the nanomesh membrane were 45.4% and 158nm, respectively. In the nanoindentation test with a spherical tip of 10μm radius, the nanomesh membranes withstood the maximum mechanical loading of 26.8±2.47mN, and the heat-treated membranes withstood 66.65±4.15mN.

Details

ISSN :
10773118 and 00036951
Volume :
90
Database :
OpenAIRE
Journal :
Applied Physics Letters
Accession number :
edsair.doi...........08e4ecaabdb9d7ae87121702387c1ec8
Full Text :
https://doi.org/10.1063/1.2715040