Adhesive microstructure and method of forming same
AssigneeThe Regents of the University of California
InventorsRobert J. Full, Ronald S. Fearing, Thomas W. Kenny, Kellar Autumn
Life of this patent
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Abstract
A method of forming an adhesive force includes removing a seta from a living specimen, attaching the seta to a substrate, and applying the seta to a surface so as to establish an adhesive force between the substrate and the surface. The seta is applied to the surface with a force perpendicular to the surface. The seta is then pulled with a force parallel to the surface so as to preload the adhesive force of the seta.
Claims29
A fabricated microstructure comprising:
- a shaft, the shaft having a diameter of between 0.01 and 0.1 times the length of the shaft;
- and
- a protrusion at an end of the shaft, the protrusion capable of providing a substantially normal adhesive force at a surface of between about 20 and 8,000 nano-Newtons by intermolecular forces.
A fabricated microstructure comprising:
- a shaft;
- and
- a plurality of protrusions disposed at the end of the shaft each protrusion capable of providing an adhesive force at a surface of between about 1.00 and 200 nano-Newtons.
A fabricated microstructure comprising:
- a shaft;
- and
- a plurality of protrusions disposed at the of the shaft, each protrusion capable of providing a shear force at a surface of between about 5.00 and 2,000 nano-Newtons.
A fabricated microstructure comprising:
- a shaft;
- and
- a plurality of protrusions disposed at the end of the shaft, each protrusion capable of providing a substantially normal adhesive force at a surface of between about 20 and 8,000 nano-Newtons.
A fabricated microstructure comprising:
- a shaft, the shaft having a diameter of between 0.01 and 0.1 times the length of the shaft;
- and
- a protrusion at an end of the shaft, the protrusion capable of providing a substantially parallel adhesive force at a surface of between about 5.00 and 2,000 nano-Newtons.
Dependencies are inferred from the claim text.