Proceedings of the 2nd IEEE Conference on Nanotechnology
DOI: 10.1109/nano.2002.1032153 View full text |Buy / Rent full text
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Abstract: Abstract-This paper proposes two different nanomolding methods to fabricate synthetic gecko foot-hair nanostructures. The first method uses Atomic Force Microscope (AFM) probe indented flat wax surface and the second one uses a nano-pore membrane as a template. These templates are molded with silicone rubber, polyamide and polyester type of polymers under vacuum and the template is peeled off or etched away. Results show that these synthetic nano-hair prototypes have adhesion close to the predicted values for … Show more

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“…While the method of using nanoporous alumina membrane as the template allows fabrication in large-scale, the artificial structures tend to bunch collectively due to the closepacked arrangement and high aspect-ratio of nanostructures. [14] Moreover, the process of dissolving aluminum and aluminum oxide with a wet etchant solution [15] is not so advisable in this application because the surface tension could easily result in the aggregation of the nanostructures.…”
Section: Introductionmentioning
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“…While the method of using nanoporous alumina membrane as the template allows fabrication in large-scale, the artificial structures tend to bunch collectively due to the closepacked arrangement and high aspect-ratio of nanostructures. [14] Moreover, the process of dissolving aluminum and aluminum oxide with a wet etchant solution [15] is not so advisable in this application because the surface tension could easily result in the aggregation of the nanostructures.…”
Section: Introductionmentioning
“…Although the adhesive mechanisms may differ, the similarities in their morphology have led researchers to create models in search of universal relationships between structure and function across all fibrillar adhesive organisms (1). Such relationships, if found, would do much to guide our understanding of how fibrillar adhesives function, to determine how they benefit or limit the organisms using them and to offer clear design principles for the engineers attempting fabrication of such adhesives (2)(3)(4)(5)(6)(7)(8)(9)(10).…”
mentioning
“…On the other hand, although current synthetic gecko setae possess some adhesive abilities, there are some difficult problems still to be tackled [24][25][26], such as how to easily switch to detachment from attachment, how to overcome the bending of hairs after they have been in contact with the opposite surface, and how to reduce environmental contamination, which will affect the application of synthetic hairs in an industrial situation. Why can more closely spaced, finer and more complicatedly branched gecko setae produce great adhesion without these deficiencies?…”
Section: Discussionmentioning