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Volume 156, 2012
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Fabrication and characterization of multi-level hierarchical surfaces

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Abstract

A nanostructured surface may exhibit low adhesion or high adhesion depending upon fibrillar density, and it presents the possibility of realizing eco-friendly surface structures with desirable adhesion by mimicking the mechanics of fibrillar adhesive surfaces of biological systems. The current research uses a patterning technique to fabricate smart adhesion surfaces: one-, two- and three-level hierarchical synthetic adhesive structure surfaces with various fibrillar densities and diameters. The contact angles and contact angle hysteresis were measured to characterize the wettability. A conventional and a glass ball attached to an atomic force microscope (AFM) tip were used to obtain the adhesive forces via force–distance curves and to study the buckling behavior of a single fiber on the hierarchical structures.

  • This article is part of the themed collection: Tribology
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Publication details

The article was received on 23 Nov 2011, accepted on 12 Dec 2011 and first published on 11 Apr 2012


Article type: Paper
DOI: 10.1039/C2FD00115B
Citation: Faraday Discuss., 2012,156, 235-241
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    Fabrication and characterization of multi-level hierarchical surfaces

    B. Bhushan and H. Lee, Faraday Discuss., 2012, 156, 235
    DOI: 10.1039/C2FD00115B

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