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A superparamagnetic bead driven fluidic device

Husband, B., Melvin, T. and Evans, A.G.R. (2005) A superparamagnetic bead driven fluidic device At SPIE 5836 : Smart Sensors, Actuators, and MEMS II. 09 May 2005. (doi:10.1117/12.608699).

Record type: Conference or Workshop Item (Paper)

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.

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More information

e-pub ahead of print date: 2005
Venue - Dates: SPIE 5836 : Smart Sensors, Actuators, and MEMS II, 2005-05-09 - 2005-05-09

Identifiers

Local EPrints ID: 57745
URI: http://eprints.soton.ac.uk/id/eprint/57745
ISBN: 9780819458315
PURE UUID: 4c253400-2bd0-4467-843c-1995f7c527e4

Catalogue record

Date deposited: 11 Aug 2008
Last modified: 17 Jul 2017 14:28

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Contributors

Author: B. Husband
Author: T. Melvin
Author: A.G.R. Evans

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