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Harnessing localized ridges for high-aspect-ratio hierarchical patterns with dynamic tunability and multifunctionality.


ABSTRACT: A simple method for fabricating high-aspect-ratio, hierarchical, and dynamically tunable surface patterns is invented by harnessing localized-ridge instabilities in gold nanofilms coated on elastomer substrates (a); a theoretical model to calculate the critical parameters (e.g., wavelength and amplitude) for designing the new patterns is developed (b); and novel applications of the patterns as super-hydrophobic coatings (c) and biomimetic cell-culture substrates (d) capable of on-demand tunability are demonstrated.

SUBMITTER: Cao C 

PROVIDER: S-EPMC3985122 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature

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Harnessing localized ridges for high-aspect-ratio hierarchical patterns with dynamic tunability and multifunctionality.

Cao Changyong C   Chan Hon Fai HF   Zang Jianfeng J   Leong Kam W KW   Zhao Xuanhe X  

Advanced materials (Deerfield Beach, Fla.) 20131212 11


A simple method for fabricating high-aspect-ratio, hierarchical, and dynamically tunable surface patterns is invented by harnessing localized-ridge instabilities in gold nanofilms coated on elastomer substrates (a); a theoretical model to calculate the critical parameters (e.g., wavelength and amplitude) for designing the new patterns is developed (b); and novel applications of the patterns as super-hydrophobic coatings (c) and biomimetic cell-culture substrates (d) capable of on-demand tunabili  ...[more]

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