Highly flexible, transparent and patternable parylene-C superhydrophobic films with high and low adhesion

This paper reports the first parylene-C based superhydrophobic films with high or low adhesion for potential droplet-based microfluidics. By creating hierarchical dual-scale micro/nanostructures and applying various plasma treatments, both biomimetic designs of lotus leaf effect with high contact an...

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Main Authors: Bo Lu, Lin, J C-H, Zhao Liu, Yi-Kuen Lee, Yu-Chong Tai
Format: Conference Proceeding
Language:English
Subjects:
Adhesives
Nanostructures
Plasmas
Rough surfaces
Surface roughness
Surface treatment
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creator Bo Lu
Lin, J C-H
Zhao Liu
Yi-Kuen Lee
Yu-Chong Tai
description This paper reports the first parylene-C based superhydrophobic films with high or low adhesion for potential droplet-based microfluidics. By creating hierarchical dual-scale micro/nanostructures and applying various plasma treatments, both biomimetic designs of lotus leaf effect with high contact angle and low adhesion, and petal effect with high contact angle but high adhesion, are demonstrated. Due to parylene's properties, these superhydrophobic films are highly flexible and transparent. Moreover, selective patterning of hydrophilic and superhydrophobic areas on a single film is also achieved. The combination of flexibility, transparency, selective patterning and simple fabrication makes our superhydrophobic films compare favorably to other designs.
doi_str_mv 10.1109/MEMSYS.2011.5734632
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subjects Adhesives
Nanostructures
Plasmas
Rough surfaces
Surface roughness
Surface treatment
title Highly flexible, transparent and patternable parylene-C superhydrophobic films with high and low adhesion
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