The University of Southampton
University of Southampton Institutional Repository

Rapid low-cost patterning of microstructures in polydimethylsiloxane via mask-less laser-machining

Record type: Conference or Workshop Item (Poster)

Polydimethylsiloxane (PDMS), due to its unique characteristics including biocompatibility, elasticity (which allows it to be flexibly moulded into the desired shape), optical transparency, and its low-cost provides a valuable advantage as a building material for the fabrication of microfluidics-based lab-on-chip devices and micro-contact printing [1, 2] moulds that allow parallel deposition of various materials on a target surface. A range of methodologies such as wet chemical etching, dry plasma etching, decal transfer microlithography, and bond-detach method have been utilised for creating patterns in PDMS. However, one of the most commonly used approaches for the prototyping of PDMS for such applications is soft-lithography. This involves the use of a clean-room based UV-lithography step that uses expensive custom-designed masks for the fabrication of a master-mould with structures that are then duplicated via stamping of this master to produce a secondary-mould in PDMS, which is then used for micro-contact printing applications. Even though this lithographic procedure can routinely produce high-resolution micron-scale structures, the procedure is time-consuming and expensive. Instead, for the production of the master, we propose as a cheap alternative to expensive UV-lithography, a mask-less laser-based procedure which does not rely on cleanroom access. Similar to the soft-lithographic procedure, the process is two-step and allows the creation of high-quality sub-micron to millimetre-scale features, in a wide range of materials, with the added advantage of being able to fabricate complex and differently-shaped structures adjacent to each other, in either a sequential or a single-step. This laser-based method (Fig.1) has been used to create two-dimensional surface relief patterns in a master-mould for replication into PDMS and subsequent contact-printing

Full text not available from this repository.


Sones, C.L., Katis, I.N., Mills, B., Feinäugle, M., Mosayyebi, A., Butement, J. and Eason, R.W. (2013) Rapid low-cost patterning of microstructures in polydimethylsiloxane via mask-less laser-machining At CLEO/Europe-IQEC 2013, Germany. 12 - 16 May 2013. (doi:10.1109/CLEOE-IQEC.2013.6801592).

More information

Published date: 2013
Additional Information: CM-P.25
Venue - Dates: CLEO/Europe-IQEC 2013, Germany, 2013-05-12 - 2013-05-16
Organisations: Optoelectronics Research Centre


Local EPrints ID: 367789
PURE UUID: 502c3b4c-b8f6-4035-8e59-cec4a2b3c693
ORCID for B. Mills: ORCID iD
ORCID for R.W. Eason: ORCID iD

Catalogue record

Date deposited: 11 Sep 2014 12:58
Last modified: 18 Jul 2017 01:55

Export record



Author: C.L. Sones
Author: I.N. Katis
Author: B. Mills ORCID iD
Author: M. Feinäugle
Author: A. Mosayyebi
Author: J. Butement
Author: R.W. Eason ORCID iD

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.