On the mechanism of adhesion in biological systems

I study adhesion relevant to biological systems, e.g., flies, crickets and lizards, where the adhesive microstructures consist of arrays of thin fibers. The effective elastic modulus of the fiber arrays can be very small which is of fundamental importance for adhesion on smooth and rough substrates. I study how the adhesion depend on the substrate roughness amplitude and apply the theoretical results to lizards.

[1]  K. Kendall,et al.  Surface energy and the contact of elastic solids , 1971, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

[2]  M. Salmeron.  Generation of defects in model lubricant monolayers and their contribution to energy dissipation in friction , 2001 .

[3]  G. Briggs,et al.  The effect of surface topography on the adhesion of elastic solids , 1977 .

[4]  David Tabor,et al.  The effect of surface roughness on the adhesion of elastic solids , 1975, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

[5]  B. Persson,et al.  Adhesion between elastic bodies with randomly rough surfaces. , 2002, Physical review letters.

[6]  Wilhelm Barthlott,et al.  Characterization and Distribution of Water-repellent, Self-cleaning Plant Surfaces , 1997 .

[7]  J. Israelachvili.  Intermolecular and surface forces , 1985 .

[8]  J. Williams,et al.  Applications of linear fracture mechanics , 1978 .

[9]  S. Timoshenko,et al.  Theory of elasticity , 1975 .

[10]  B. Persson.  Model Study of Brittle Fracture of Polymers , 1998 .

[11]  Robert N. Fisher,et al.  A comparative analysis of clinging ability among pad‐bearing lizards , 1996 .

[12]  B. Persson.  Fracture of polymers , 1999 .

[13]  Hisae Yoshizawa,et al.  Fundamental mechanisms of interfacial friction. 1. Relation between adhesion and friction , 1993 .

[14]  R. Howe,et al.  Dynamic contact of the human fingerpad against a flat surface. , 1999, Journal of biomechanical engineering.

[15]  B. Persson,et al.  Adhesion between an elastic body and a randomly rough hard surface , 2002, The European physical journal. E, Soft matter.

[16]  S. Gorb,et al.  Roughness-dependent friction force of the tarsal claw system in the beetle Pachnoda marginata (Coleoptera, Scarabaeidae). , 2002, The Journal of experimental biology.

[17]  B. Persson,et al.  Sliding Friction: Physical Principles and Applications , 1997 .

[18]  R. Full,et al.  Adhesive force of a single gecko foot-hair , 2000, Nature.

[19]  H. R. Hepburn,et al.  The insect integument. , 1976 .