| abstract |
A set comprising: a. a micro structured and nano structured surface, and b. an elastic surface having a hardness of 20 Shore A or higher and 60 Shore A or less, carrying micropores and nanopores the micro structured and nano structured surface, varying the size of the micropores from 0.1 to 5 micrometers, varying the size of 1 to 100 nm nanopores, determined by scanning electron micrograph as described herein, the micro structured and nano structured surface having an average roughness in amplitude (Ra) ranging from 0.2 μm to 3.0 μm and an irregular profile spacing of medium profile (RSm) varying from 20 nm to 2,000 nm, and forming the micro structured and nano structured surface and the elastic surface after contact with each other a dry adhesive bond through a blockage Reversible mechanical elastic surface in micropores and nanopores. |