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Characterization of a protein-based adhesive elastomer secreted by the Australian frog Notaden bennetti

Graham, Lloyd; Glattauer, Veronica; Huson, Mickey; Maxwell, Jane; Knott, Robert; White, John; Vaughan, Paul; Peng, Yong; Tyler, Michael; Werkmeister, Jerome A; Ramshaw, John

Description

When provoked, Notaden bennetti frogs secrete an exudate which rapidly forms a tacky elastic solid ("frog glue"). This protein-based material acts as a promiscuous pressure-sensitive adhesive that functions even in wet conditions. We conducted macroscopic tests in air to assess the tensile strength of moist glue (up to 78 ± 8 kPa) and the shear strength of dry glue (1.7 ± 0.3 MPa). We also performed nanomechanical measurements in water to determine the adhesion (1.9-7.2 nN or greater),...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
URI: http://hdl.handle.net/1885/84133
Source: Biomacromolecules
DOI: 10.1021/bm050335e

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