Fluid-based adhesion in insects – principles and challenges
Abstract
Insects use hairy or smooth adhesive pads to stick to almost all known surfaces. Although studied for more than 300 years, the principles of insect adhesion are still not fully understood and explaining them still challenges biologists, physicists and engineers. Today we know that the contact between the insect adhesive organs and the substrate is mediated via nanometre- thin films of adhesive fluid. This fluid helps to increase the pad's contact area on rough surfaces and its special