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A BioMEMS review: MEMS technology for physiologically integrated devices
GRAYSON, A.C.R.
SHAWGO, R.S.
JOHNSON, A.M.
FLYNN, N.T.
YAWEN LI
CIMA, M.J.
LANGER, R.
Sch. of Chem. & Biomolecular Eng., Cornell Univ., Ithaca, NY, USA;
This paper appears in: Proceedings of the IEEE
Publication Date: Jan 2004
Volume: 92,
Issue: 1
On page(s): 6- 21
ISSN: 0018-9219
INSPEC Accession Number: 7830425
Digital Object Identifier: 10.1109/JPROC.2003.820534
Posted online: 2004-11-08 17:41:14.0
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MEMS devices are manufactured using similar microfabrication techniques as those used to create integrated circuits. They often, however, have moving components that allow physical or analytical functions to be performed by the device. Although MEMS can be aseptically fabricated and hermetically sealed, biocompatibility of the component materials is a key issue for MEMS used in vivo. Interest in MEMS for biological applications (BioMEMS) is growing rapidly, with opportunities in areas such as biosensors, pacemakers, immunoisolation capsules, and drug delivery. The key to many of these applications lies in the leveraging of features unique to MEMS (for example, analyte sensitivity, electrical responsiveness, temporal control, and feature sizes similar to cells and organelles) for maximum impact. In this paper, we focus on how the biological integration of MEMS and other implantable devices can be improved through the application of microfabrication technology and concepts. Innovative approaches for improved physical and chemical integration of systems with the body are reviewed. An untapped potential for MEMS may lie in the area of nervous and endocrine system actuation, whereby the ability of MEMS to deliver potent drugs or hormones, combined with their precise temporal control, may provide new treatments for disorders of these systems.
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