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Microdevices based on surface tension and wettability that function as sensors, actuators, and other devices

  • US 6,152,181 A
  • Filed: 01/08/1998
  • Issued: 11/28/2000
  • Est. Priority Date: 11/16/1992
  • Status: Expired due to Fees
First Claim
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1. A process of selectively responding to at least one external stimulus by a microdevice that is capable of operation in any orientation and is unaffected by many orders-of-magnitude over-actuation, said process comprising the steps of:

  • exposing the microdevice to said at least one external stimulus;

    acting upon at least one droplet of non-wetting fluid in said microdevice by said at least one external stimulus, said at least one droplet being positioned in a cavity of said microdevice;

    providing a reaction by said at lest one droplet to said external stimulus; and

    observing said reaction and/or providing a response to said reaction.

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