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Fluid Dispensing using Superparamagnetic Beads

Fluid Dispensing using Superparamagnetic Beads
Fluid Dispensing using Superparamagnetic Beads
The aim of this investigation is to produce an injection device for precise dispensing of nanolitre volumes of fluid using a piston formed from superparamagnetic beads. A plug of Fe2O3 beads is formed by applying a non-uniform magnetic field from a bullet magnet within close proximity to the fluid filled channel containing the beads. Once the plug is formed it can be moved through the micro channel by moving the magnet and thus, provide a plunger-like action. Fluid is displaced by moving the magnetic plug, providing a technique for fluid dispensing.
Superparamagnetic beads, Micro channel, Micro fluidics, Nano-volume pipette
91 631 7553 3
338-341
Husband, B.
88ce6797-521a-4cd2-88ca-0d8182cb9876
Evans, A.G.R.
082f720d-3830-46d7-ba87-b058af733bc3
Melvin, T.
fd87f5eb-2bb9-48fa-b7be-7100ace9c50f
Husband, B.
88ce6797-521a-4cd2-88ca-0d8182cb9876
Evans, A.G.R.
082f720d-3830-46d7-ba87-b058af733bc3
Melvin, T.
fd87f5eb-2bb9-48fa-b7be-7100ace9c50f

Husband, B., Evans, A.G.R. and Melvin, T. (2005) Fluid Dispensing using Superparamagnetic Beads. 16th MicroMechanics Europe Workshop, MME, Gothenburg, Sweden. 04 - 06 Sep 2005. pp. 338-341 .

Record type: Conference or Workshop Item (Poster)

Abstract

The aim of this investigation is to produce an injection device for precise dispensing of nanolitre volumes of fluid using a piston formed from superparamagnetic beads. A plug of Fe2O3 beads is formed by applying a non-uniform magnetic field from a bullet magnet within close proximity to the fluid filled channel containing the beads. Once the plug is formed it can be moved through the micro channel by moving the magnet and thus, provide a plunger-like action. Fluid is displaced by moving the magnetic plug, providing a technique for fluid dispensing.

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More information

Published date: 2005
Venue - Dates: 16th MicroMechanics Europe Workshop, MME, Gothenburg, Sweden, 2005-09-04 - 2005-09-06
Keywords: Superparamagnetic beads, Micro channel, Micro fluidics, Nano-volume pipette
Organisations: Optoelectronics Research Centre, NANO

Identifiers

Local EPrints ID: 261206
URI: http://eprints.soton.ac.uk/id/eprint/261206
ISBN: 91 631 7553 3
PURE UUID: 1f37329b-f4a9-4128-a407-c84773235c45

Catalogue record

Date deposited: 08 Sep 2005
Last modified: 14 Mar 2024 06:50

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Contributors

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

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