2026-09-19T08:30:10Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/367582022-01-13T07:54:29Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Joel Voldman.
Gadish, Nitzan
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
2007-03-12T17:51:03Z
2007-03-12T17:51:03Z
2005
2005
http://hdl.handle.net/1721.1/36758
78616940
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2005.
Includes bibliographical references (p. 71-72).
This thesis presents the development of a high-throughput microfluidic microorganism concentrator for pathogen detection applications. Interdigitated electrodes lining the bottom of the channel use positive dielectrophoretic forces to trap particles. A passive mixer is used to circulate the liquid in the channel, transporting particles to within the trapping region of the electrodes. Samples are extracted and their concentrations measured using a spectrophotometer. Concentration enhancements up to 40x at 500 gl/min flowrate using polystyrene microspheres and up to 10x at 100 gll/min flowrate using B. subtilis spores are achieved.
by Nitzan Gadish.
M.Eng.
72 p.
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
http://dspace.mit.edu/handle/1721.1/7582
Electrical Engineering and Computer Science.
A combined microfluidic/dielectrophoretic microorganism concentrator
Thesis
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