Fluid Dispensing using Superparamagnetic Beads

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


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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.

Item Type: Conference or Workshop Item (Poster)
Venue - Dates: 16th MicroMechanics Europe Workshop, MME, Sweden, 2005-09-04 - 2005-09-06
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Keywords: Superparamagnetic beads, Micro channel, Micro fluidics, Nano-volume pipette
Organisations: Optoelectronics Research Centre, Nanoelectronics and Nanotechnology
ePrint ID: 261206
Date :
Date Event
Date Deposited: 08 Sep 2005
Last Modified: 17 Apr 2017 22:00
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/261206

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