Nano Science and Technology Institute
Nanotech 2004 Vol. 1
Nanotech 2004 Vol. 1
Technical Proceedings of the 2004 NSTI Nanotechnology Conference and Trade Show, Volume 1
Chapter 7: Micro Fluidics and Nanoscale Transport

Droplet Movement Induced by Nano Assembled Molecules And Micro Textures

Authors:F-G Tseng and S.C. Chien
Affilation:National Tsing Hua University, ESS Dept., TW
Pages:304 - 307
Keywords:SAMs, droplet manipulation, hydrophobicity gradient
Abstract:This paper introduces a droplet movement method on top of a surface prepared by gradient nano-scale self-assembled molecules on micro sized textures. Experimental results demonstrate the contact angles on hydrophobic surfaces without/with micro posts increase from 110o to 143o while on the hydrophilic surfaces decrease from 56.7o to 12.4o As a result, the droplet moving speed is increased around twice on the gradient SAM surface with micro structures than that with only SAM gradient.
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