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RMW25: Microsphere Capture and Perfusion in Microchannels Using Flexural Plate Wave Structures

Project ID RMW25
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Start Date NO START DATE RECORDED
Last Updated Thu 2003-Jul-31 15:14:21
Abstract Sequential flow injection (FI) involves the temporary immobilization of functionalized microspheres as a renewable surface for (bio) chemical assays. We describe a microfabricated flow injection system that employs the ultrasonic flexural plate wave (FPW) device to acoustically capture microspheres from fluid flow. Microsphere capture is achieved by counteracting viscous drag force with radiation pressure generated from a standing acoustic field. The feasibility of acoustic trapping for FI is demonstrated with a bio-ligand assay of fluorescently labeled biotin conjugated to streptavidin coated microspheres.
Status Continuing
Funding Source Federal
IAB Research Area BIOMEMS AND MICROFLUIDICS
Researcher(s) Justin Black
Advisor(s) Richard M. White
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