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The thesis systematically investigates the factors which influence many animals´ robust adhesion abilities and micro-reversible adhesion mechanisms, including the geometric principles of their adhesion, relative humidity, surface roughness and pre-tension. Studies exploring biological adhesion mechanisms are not only of great significance for the design of advanced adhesive materials and adhesion systems for micro-climbing robots, but also very helpful for resolving the problem of adhesion failure in MEMS/NEMS.

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Introduction.- Extension of the Two-dimensional JKR Theory to the Case With a Large Contact Width.- Peeling Behavior of a Bio-inspired Nano-film with Finite Length on a rigid Substrate.- Effect of Pre-tension on the Peeling Behavior of a Bio-inspired Nano-film and a Hierarchical Adhesive Structure.- Effects of Surface Roughness and Film Thickness on the Adhesion of a Bio-inspired Nano-film.- Effects of the Relative Humidity and Water Droplet on Adhesion of a Bio-inspired Nano-film.- Effect of Geometry on the Adhesive Behavior of Bio-inspired Fibrils.- Conclusion and Future Work.

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