gecko-like dynamic adhesion, directionality and long lifetime A microfabricated wedge-shaped adhesive array displaying
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P<P Published online 18 March 2009 in advance of the print journal. Rapid response http://rsif.royalsocietypublishing.org/letters/submit/royinterface;rsif.2009.0048v1 Respond to this article Subject collections (18 articles) biomimetics Articles on similar topics can be found in the following collections Email alerting service here right-hand corner of the article or click Receive free email alerts when new articles cite this article sign up in the box at the top
منابع مشابه
A microfabricated wedge-shaped adhesive array displaying gecko-like dynamic adhesion, directionality and long lifetime.
Gecko adhesion has become a paradigmatic example of bio-inspired engineering, yet among the many gecko-like synthetic adhesives (GSAs), truly gecko-like performance remains elusive. Many GSAs have previously demonstrated one or two features of the gecko adhesive. We present a new wedge-shaped GSA that exhibits several gecko-like properties simultaneously: directional features; zero force at det...
متن کاملHuman climbing with efficiently scaled gecko-inspired dry adhesives.
Since the discovery of the mechanism of adhesion in geckos, many synthetic dry adhesives have been developed with desirable gecko-like properties such as reusability, directionality, self-cleaning ability, rough surface adhesion and high adhesive stress. However, fully exploiting these adhesives in practical applications at different length scales requires efficient scaling (i.e. with little lo...
متن کاملSimulation of synthetic gecko arrays shearing on rough surfaces.
To better understand the role of surface roughness and tip geometry in the adhesion of gecko synthetic adhesives, a model is developed that attempts to uncover the relationship between surface feature size and the adhesive terminal feature shape. This model is the first to predict the adhesive behaviour of a plurality of hairs acting in shear on simulated rough surfaces using analytically deriv...
متن کاملUsing Setal Micromechanics to Predict Gecko Adhesive Performance
INTRODUCTION The fibrillar adhesive toe pads of geckos enable extraordinary climbing abilities via strong attachment and rapid detachment. Previous research using a single species, Gekko gecko, proposed that the adhesive system could be modeled as an array of cantilever beam-like elements. In this study, we examined the similarities and differences in setal morphology and performance between Ge...
متن کاملFabrication of gecko foot-hair like nano structures and adhesion to random rough surfaces∗
In this work the effect of substrate roughness on the adhesion of gecko foot-hair like nano structures as opposed to solid elastic materials is described and models of both synthetic nano-hairs and hair-substrate interaction are developed. First, by combining linear beam theory and geometric constraints, a nonlinear elastic model for the hair is derived. Then it is shown how for a given random ...
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