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뇌과학이미징연구단
뇌과학 이미징 연구단
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Highly durable and unidirectionally stooped polymeric nanohairs for gecko-like dry adhesive

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Title
Highly durable and unidirectionally stooped polymeric nanohairs for gecko-like dry adhesive
Author(s)
Hyeon Seong Im; Ki Yoon Kwon; Jong Uk Kim; Kwang Su Kim; Hoon Yi; Pil J Yoo; Changhyun Pang; Hoon Eui Jeong; Tae-il Kim
Publication Date
2015-10
Journal
NANOTECHNOLOGY, v.26, no.41, pp.415301 - 415306
Publisher
IOP PUBLISHING LTD
Abstract
Gecko-like dry adhesive using high aspect ratio polymeric nanohairs has insuperable limitations, although it has huge potential in many applications. Repeated harsh contacts on a target substrate lead to physical collapse of nanohairs and significant degradation of the adhesion property, because the polymeric nanohairs are quite fragile due to poor mechanical robustness. Herein, we demonstrate a highly robust gecko-like dry adhesive with unidirectionally stooped polymeric nanohairs (diameter 100 nm) with a high aspect ratio (similar to 9) using an ultrathin metal coating. 100 cycles of repeated adhesion tests with 1 N preloading force did not significantly degrade adhesion or cause collapse of nanohairs. We believe that this approach allows gecko-like dry adhesive to be utilized in many related applications and diverse industry interests
URI
https://pr.ibs.re.kr/handle/8788114/2313
ISSN
0957-4484
Appears in Collections:
Center for Neuroscience Imaging Research (뇌과학 이미징 연구단) > Journal Papers (저널논문)
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