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Scaling effects of wet adhesion in biological attachment systems

Paper ID Volume ID Publish Year Pages File Format Full-Text
2647 121 2006 8 PDF Available
Title
Scaling effects of wet adhesion in biological attachment systems
Abstract

Insects have evolved fibrillar attachment devices based on wet adhesion to attach themselves to a variety of surfaces. This paper investigates the scaling effects of wet adhesion mediated by a liquid bridge between a fiber and a solid surface. The influences of liquid volume and contact angles are discussed via a scaling law indicating that the adhesive strength can be enhanced by contact size reduction. Due to the maximum negative pressure in the liquid bridge, there exists a critical length scale at which the system achieves the theoretical tensile strength of the liquid. We conclude that size reduction down to a critical scale results in optimization of the adhesive strength.

Keywords
Wet adhesion; Adhesive strength; Adhesion energy; Scaling; Design
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Scaling effects of wet adhesion in biological attachment systems
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 2, Issue 1, January 2006, Pages 51–58
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us