Mask-less laser-machining for rapid low-cost patterning of microstructures in polydimethylsiloxane (PDMS)
Mask-less laser-machining for rapid low-cost patterning of microstructures in polydimethylsiloxane (PDMS)
We report on the use of a mask-less laser-machining procedure that enables the rapid creation of micron-scale structures in polydimethylsiloxane (PDMS), a platform most commonly used in the implementation of lab-on-chip devices, and also in micro-contact printing or soft lithography. The designed two-dimensional array of structures, extending over ~1mm2 regions with micron-scale resolution, was laser-ablated into a thin film through the use of femtosecond laser pulses (150fs, 800nm) that were spatially shaped via diffraction from a programmable digital multi-mirror device (DMD). The high switching speed of the DMD mirrors in combination with a high repetition rate laser provides the ability to pattern any desired 2D prototype on the ~1mm scale within a few minutes, circumventing the need for a custom-designed mask and photolithography which is generally needed to produce a specific prototyping master mould. The complementary pattern from the thin film was subsequently transferred into PDMS for fabrication of a mould that was used for micro-contact printing of ink onto a glass substrate. In addition, this non-lithographic, mask-less laser-machining approach can be extended to form both complex micron and submicron scale structures that are useful in contact printing applications but also in the fabrication of millimetre scale lab-on-chip fluidic devices
Sones, C.L.
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Katis, I.N.
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Mills, B.
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Feinäugle, M.
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Mosayyebi, Ali
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Butement, Jonathan
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Eason, R.W.
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2013
Sones, C.L.
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Katis, I.N.
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Mills, B.
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Feinäugle, M.
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Mosayyebi, Ali
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Butement, Jonathan
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Eason, R.W.
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Sones, C.L., Katis, I.N., Mills, B., Feinäugle, M., Mosayyebi, Ali, Butement, Jonathan and Eason, R.W.
(2013)
Mask-less laser-machining for rapid low-cost patterning of microstructures in polydimethylsiloxane (PDMS).
E-MRS '13 Materials Research Society Spring Meeting, , Strasbourg, France.
27 - 31 May 2013.
Record type:
Conference or Workshop Item
(Paper)
Abstract
We report on the use of a mask-less laser-machining procedure that enables the rapid creation of micron-scale structures in polydimethylsiloxane (PDMS), a platform most commonly used in the implementation of lab-on-chip devices, and also in micro-contact printing or soft lithography. The designed two-dimensional array of structures, extending over ~1mm2 regions with micron-scale resolution, was laser-ablated into a thin film through the use of femtosecond laser pulses (150fs, 800nm) that were spatially shaped via diffraction from a programmable digital multi-mirror device (DMD). The high switching speed of the DMD mirrors in combination with a high repetition rate laser provides the ability to pattern any desired 2D prototype on the ~1mm scale within a few minutes, circumventing the need for a custom-designed mask and photolithography which is generally needed to produce a specific prototyping master mould. The complementary pattern from the thin film was subsequently transferred into PDMS for fabrication of a mould that was used for micro-contact printing of ink onto a glass substrate. In addition, this non-lithographic, mask-less laser-machining approach can be extended to form both complex micron and submicron scale structures that are useful in contact printing applications but also in the fabrication of millimetre scale lab-on-chip fluidic devices
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Published date: 2013
Venue - Dates:
E-MRS '13 Materials Research Society Spring Meeting, , Strasbourg, France, 2013-05-27 - 2013-05-31
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 367790
URI: http://eprints.soton.ac.uk/id/eprint/367790
PURE UUID: e704dadd-a85d-460e-a56d-f20596a38bbc
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Date deposited: 11 Sep 2014 13:04
Last modified: 13 Nov 2024 02:53
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Contributors
Author:
C.L. Sones
Author:
I.N. Katis
Author:
B. Mills
Author:
M. Feinäugle
Author:
Ali Mosayyebi
Author:
Jonathan Butement
Author:
R.W. Eason
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