A superparamagnetic bead driven fluidic device


Husband, B., Melvin, T. and Evans, A.G.R. (2005) A superparamagnetic bead driven fluidic device. In, Microfluidic Devices III. Smart Sensors, Actuators, and MEMS II , SPIE. (doi:10.1117/12.608699).

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Original Publication URL: http://dx.doi.org/10.1117/12.608699

Description/Abstract

Injection strategies have been employed in the field of fluidic MEMS using piezo electric or thermal actuators. A very popular application for such technology is inkjet printing. Largely this technology is used to produce droplets of fluid in air; the aim of this investigation is to produce an injection device for the precise dispensing of nanolitre volumes of fluid. A novel technique for dispensing fluid using superparamagnetic beads has been investigated. The beads used (Dynal Biotech) contain a homogeneous dispersion of Fe. This is an investigation using silicon and Pyrex fabricated micro channels with smaller dimensions, such that the dimensions will be similar to those which will be used to produce a pipette device. Here results are presented using these fabricated micro channels, where the effects of using differently sized bead plugs and varying velocities are examined. The results follow our proposed theory; further analysis is required to determine the operation of a bead plug during all states of movement.

Item Type: Book Section
ISBNs: 9780819458315 (paperback)
Related URLs:
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 57745
Date Deposited: 11 Aug 2008
Last Modified: 27 Mar 2014 18:40
Publisher: SPIE
URI: http://eprints.soton.ac.uk/id/eprint/57745

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