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http://nanopatentsandinnovations.blogspot.com/2010/04/nanotechnology-enables-first-synthetic.html

Wednesday, April 14, 2010

Nanotechnology Enables First Synthetic Reversible Gecko Glue, Magnetism Turns Dry Micro-Nano Adhesive On and Off

The first synthetic reversible adhesive has been created by University of California scientists. The adhesive mechanism is a hierarchical system comprised of a micro-scale compliant surface containing nano-structures that allow it to mimic the adhesive qualities of a gecko’s foot.

The compliant surface is moved by applying a magnetic field either to engage the nano-structures with an adhering surface or to remove the nano-structures from the adhering surface, thus creating an on/off reversible adhesive mechanism say University of California, Santa Barbara Department of Mechanical Engineering Chair Professor Kimberly L. Turner and  co-inventor Michael T Northen in U.S. Patent 7,695,811,