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Actuation method and apparatus, micropump, and PCR enhancement method

United States Patent

July 28, 2015
View the Complete Patent at the US Patent & Trademark Office
An actuation apparatus includes at least one magnetic shape memory (MSM) element containing a material configured to expand and/or contract in response to exposure to a magnetic field. Among other things, the MSM element may be configured to pump fluid through a micropump by expanding and/or contracting in response to the magnetic field. The magnetic field may rotate about an axis of rotation and exhibit a distribution having a component substantially perpendicular to the axis of rotation. Further, the magnetic field distribution may include at least two components substantially orthogonal to one another lying in one or more planes perpendicular to the axis of rotation. The at least one MSM element may contain nickel, manganese, and gallium. A polymerase chain reaction (PCR) may be enhanced by contacting a PCR reagent and DNA material with the MSM element.
Ullakko; Kari (Savolinna, FL), Mullner; Peter (Boise, ID), Hampikian; Greg (Boise, ID), Smith; Aaron (Meridian, ID)
Boise State University (Boise, ID)
13/ 550,386
July 16, 2012
GOVERNMENT LICENSE RIGHTS This invention was made with government support under grant no. DEFG-02-07ER46396 awarded by the Department of Energy (DOE); and under grant no. IF11-004 awarded by HERC. The government has certain rights in the invention.