Microfabricated adhesive mimicking gecko foot-hair View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2003-07

AUTHORS

A K Geim, S V Dubonos, I V Grigorieva, K S Novoselov, A A Zhukov, S Yu Shapoval

ABSTRACT

The amazing climbing ability of geckos has attracted the interest of philosophers and scientists alike for centuries. However, only in the past few years has progress been made in understanding the mechanism behind this ability, which relies on submicrometre keratin hairs covering the soles of geckos. Each hair produces a miniscule force approximately 10(-7) N (due to van der Waals and/or capillary interactions) but millions of hairs acting together create a formidable adhesion of approximately 10 N x cm(-2): sufficient to keep geckos firmly on their feet, even when upside down on a glass ceiling. It is very tempting to create a new type of adhesive by mimicking the gecko mechanism. Here we report on a prototype of such 'gecko tape' made by microfabrication of dense arrays of flexible plastic pillars, the geometry of which is optimized to ensure their collective adhesion. Our approach shows a way to manufacture self-cleaning, re-attachable dry adhesives, although problems related to their durability and mass production are yet to be resolved. More... »

PAGES

461-463

References to SciGraph publications

Journal

TITLE

Nature Materials

ISSUE

7

VOLUME

2

Author Affiliations

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  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1038/nmat917

    DOI

    http://dx.doi.org/10.1038/nmat917

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1026665324

    PUBMED

    https://www.ncbi.nlm.nih.gov/pubmed/12776092


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