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Replication of High-Aspect-Ratio Nanopillar Array for Biomimetic Gecko Foot-Hair Prototype by UV Nano Embossing with Anodic Aluminum Oxide Mold

Title
Replication of High-Aspect-Ratio Nanopillar Array for Biomimetic Gecko Foot-Hair Prototype by UV Nano Embossing with Anodic Aluminum Oxide Mold
Authors
Kim, DSLee, HSLee, JKim, SLee, KHMoon, WKwon, TH김동성
Date Issued
Mar-2007
Publisher
SPRINGER
Abstract
In this paper, we present a simple and cost-effective replication method of high-aspect-ratio polymer nanopillar array as a biomimetic gecko's foot hair prototype. A UV nano embossing process was applied for the replication of polymer nanopillar arrays. Highly ordered straight nanoporous AAO (anodic aluminum oxide) templates were utilized as reusable master molds. Densely arranged high-aspect-ratio nanopillar arrays have been successfully fabricated by means of the UV nano embossing process with the AAO mold. Pull-off force measurements were carried out to characterize the adhesive force of the replicated nanopillar arrays on the polymer substrates based on the force-distance curves obtained from the atomic force microscope (AFM) with a modified AFM cantilever. The force measurement results showed that the larger diameter and the taller height of the nanopillars result in the larger adhesive force.
Keywords
ADHESIVE; FORCE
URI
http://oasis.postech.ac.kr/handle/2014.oak/25015
DOI
10.1007/S00542-006-0220-1
ISSN
0946-7076
Article Type
PROCEEDINGS PAPER
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