Elastic modulus of tree frog adhesive toe pads

• Published in: Journal of Comparative Physiology Vol. 197; no. 10; pp. 969 - 978
• Main Authors: Barnes, W. Jon. P, Goodwyn, Pablo J. Perez, Nokhbatolfoghahai, Mohsen, Gorb, Stanislav N
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 01.10.2011; Springer Nature B.V
• Subjects: adhesion; Adhesiveness; adults; Age Factors; Animal Physiology; Animals; Anura - physiology; Biomechanical Phenomena; Biomedical and Life Sciences; Elastic Modulus; Epidermis - physiology; Forelimb; frogs; Hindlimb; Interferometry; keratinization; Life Sciences; Litoria; modulus of elasticity; Neurosciences; Original Paper; Pressure; rubber; silicone; Toes - physiology; Transducers, Pressure; Zoology; Tree frog; Effective elastic modulus; Adhesion; Micro-indentation

Previous work using an atomic force microscope in nanoindenter mode indicated that the outer, 10- to 15-μm thick, keratinised layer of tree frog toe pads has a modulus of elasticity equivalent to silicone rubber (5–15 MPa) (Scholz et al. 2009), but gave no information on the physical properties of d...