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Novel fabrication method for rapid creation of channels using PDMS for microfluidic networks on planar substrates

Novel fabrication method for rapid creation of channels using PDMS for microfluidic networks on planar substrates
Novel fabrication method for rapid creation of channels using PDMS for microfluidic networks on planar substrates
A novel and simple method for the rapid fabrication of microfluidic networks is presented. A silicone elastomer (PDMS - poly(dimethylsiloxane)) is cured around formers, which are then removed post-cure, resulting in a microstructure suitable for fluidic applications. The limiting factors in the fabrication method are in the materials and tools used for the development of the formers. If the methods used cannot produce a structure of accurate dimensions then the microstructure formed will be limited. For creating very narrow fluidic channels, the material used needs to be strong so that even with narrow dimensions it can be removed without damage but the use of sacrificial materials has been investigated as this overcomes this requirement. The principle of the technique is demonstrated with an unusual material (caramelised sugar – which can be easily dissolved in water) to fabricate channels with diameters down to 16μm.
Lewis, Adam
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Cranny, Andrew
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Green, Nicolas
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Nie, Menyang
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Wharton, Julian
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Wood, Robert
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Stokes, Keith
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Harris, Nick
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Lewis, Adam
92717168-ccc3-4540-8150-6e42198ae454
Cranny, Andrew
2ebc2ccb-7d3e-4a6a-91ac-9f089741939e
Green, Nicolas
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Nie, Menyang
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Wharton, Julian
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Wood, Robert
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Stokes, Keith
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Harris, Nick
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Lewis, Adam, Cranny, Andrew, Green, Nicolas, Nie, Menyang, Wharton, Julian, Wood, Robert, Stokes, Keith and Harris, Nick (2010) Novel fabrication method for rapid creation of channels using PDMS for microfluidic networks on planar substrates. APCOT2010, Perth, Western, Australia. 06 - 09 Jul 2010.

Record type: Conference or Workshop Item (Poster)

Abstract

A novel and simple method for the rapid fabrication of microfluidic networks is presented. A silicone elastomer (PDMS - poly(dimethylsiloxane)) is cured around formers, which are then removed post-cure, resulting in a microstructure suitable for fluidic applications. The limiting factors in the fabrication method are in the materials and tools used for the development of the formers. If the methods used cannot produce a structure of accurate dimensions then the microstructure formed will be limited. For creating very narrow fluidic channels, the material used needs to be strong so that even with narrow dimensions it can be removed without damage but the use of sacrificial materials has been investigated as this overcomes this requirement. The principle of the technique is demonstrated with an unusual material (caramelised sugar – which can be easily dissolved in water) to fabricate channels with diameters down to 16μm.

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More information

Published date: July 2010
Additional Information: Event Dates: 6-9 July 2010
Venue - Dates: APCOT2010, Perth, Western, Australia, 2010-07-06 - 2010-07-09
Organisations: Nanoelectronics and Nanotechnology, EEE

Identifiers

Local EPrints ID: 271425
URI: http://eprints.soton.ac.uk/id/eprint/271425
PURE UUID: 04db512f-83c3-45d2-8cdc-35bbc656d01d
ORCID for Nicolas Green: ORCID iD orcid.org/0000-0001-9230-4455
ORCID for Nick Harris: ORCID iD orcid.org/0000-0003-4122-2219

Catalogue record

Date deposited: 20 Jul 2010 10:00
Last modified: 15 Mar 2024 03:20

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Contributors

Author: Adam Lewis
Author: Andrew Cranny
Author: Nicolas Green ORCID iD
Author: Menyang Nie
Author: Julian Wharton
Author: Robert Wood
Author: Keith Stokes
Author: Nick Harris ORCID iD

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