BROWSE

Related Researcher

Author

Jeong, Hoon Eui
Multiscale Biomimetics & Manufacturing Lab
Research Interests
  • Biomimetics

ITEM VIEW & DOWNLOAD

Precise tip shape transformation of nanopillars for enhanced dry adhesion strength

Cited 12 times inthomson ciCited 9 times inthomson ci
Title
Precise tip shape transformation of nanopillars for enhanced dry adhesion strength
Author
Jeong, Hoon EuiSuh, Kahp-Yang
Keywords
Adhesion characteristic; Adhesion measurement; Head structure; Nanopillars; Polyurethane acrylates; Tip geometry; Tip shape; Two-step process; UV curable
Issue Date
201205
Publisher
ROYAL SOC CHEMISTRY
Citation
SOFT MATTER, v.8, no.19, pp.5375 - 5380
Abstract
We present a simple, yet robust, technique for controlling the tip geometry of nanopillars by utilizing a two-step process of partial photopolymerization of UV-curable polyurethane acrylate (PUA) resin and subsequent tip shape modification. With this technique, head structures of nanopillars were precisely transformed from hemispherical to protruding, mushroom-like tips without any loss in structural integrity of the nanopillars. Nanoscopic and macroscopic adhesion measurements for angled nanopillars with modified tips demonstrated that mushroom-like structures fabricated by our approach could greatly enhance adhesion strengths as compared to unmodified, round head structures. Also, directional adhesion characteristics of angled nanopillars were maintained regardless of tip shapes.
URI
Go to Link
DOI
http://dx.doi.org/10.1039/c2sm07440k
ISSN
1744-683X
Appears in Collections:
MNE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU