ACTUATOR 2014 Manuscript A3.2

Author: Hubert Borgmann
Pages: 2
Language: English
Publication date: 08/04/2015
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Manuscript A3.2 published in Conference Proceedings ACTUATOR 2014
Micropump Utilizing Localized Magnetic-Field-Induced Deformation of MSM Elements to Deliver Sub-Microliter Volumes of Drugs to the Rat Brain

S. Barker1, E. Rhoads1, P. Lindquist1, M. Vreugdenhill2, P. Müllner1
1Boise State University; Boise, USA,
2University of Birmingham, Birmingham, United Kingdom

Magnetic shape-memory alloys exhibit strong magneto-structural coupling enabling large magnetic-fieldinduced deformation. Local control of twinning via variable inhomogeneous magnetic fields initiates local reversible deformation. We applied this concept to build a valve-less micropump consisting of a Ni-Mn-Ga single crystal, a casing, and a rod magnet. The micropump successfully pumped fluid in opposite directions when the magnet was turned clockwise and counter clockwise. Here, we modify this micropump for application in rat a head stage, which would simultaneously monitor electroencephalograph data and deliver 0.5-5.0 μl of a drug solution at 100-500 nl/min directly to the rat’s brain.
El vendedor asume toda la responsabilidad de esta entrada.
Hubert Borgmann, MESSE BREMEN,
Project Manager ACTUATOR, International Conference and Exhibition on New Actuators and Drive Systems, Bremen, Germany, and Editor of the ACTUATOR Conference Proceedings (
Project Manager ITHEC, International Conference and Exhibition on Thermoplastic Composites, Bremen, Germany, and Editor of the ITHEC Conference Proceedings (

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