Issue 32, 2015
From the journal:

RSC Advances

Fabrication of molds for PDMS microfluidic devices by laser swelling of PMMA

Ednan Joanni,*a   Jonnas Peressinotto,a   Patricia Silva Domingues,ab   Grazielle de Oliveira Settiab  and  Dosil Pereira de Jesusb  

* Corresponding authors

a Centro de Tecnologia da Informação Renato Archer (CTI), Rod. Dom Pedro I km 143.6, Campinas, SP, Brazil
E-mail: ednan.joanni@cti.gov.br

b Instituto de Química, Universidade Estadual de Campinas (Unicamp), Caixa postal 6154, Campinas, SP, Brazil

Abstract

The volume increase experienced by Polymethylmethacrylate (PMMA), a common thermoplastic material, when subjected to a fast heating–cooling cycle by the action of an ultraviolet laser beam has been investigated in this work. The effects of laser power, focusing, writing speed, cooling and number of exposures on the dimensions of ridges formed by surface swelling were quantified. The biggest swellings, having near Gaussian cross-sectional shapes, were obtained by performing laser treatments with the polymer immersed in water. The laser swelling technique was applied to the fabrication of molds for microfluidic chips made from Polydimethylsiloxane (PDMS) and the results of the study are discussed within this framework. The method allows the rapid fabrication of molds with a very smooth finish, providing dimensional accuracy appropriate for replication of complex PDMS microfluidic devices.

Graphical abstract: Fabrication of molds for PDMS microfluidic devices by laser swelling of PMMA

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/C5RA03122B
Article type
Paper
Submitted
08 Jan 2015
Accepted
04 Mar 2015
First published
04 Mar 2015

RSC Adv., 2015,5, 25089-25096

Author version available

Download author version (PDF)

Permissions

Request permissions

Fabrication of molds for PDMS microfluidic devices by laser swelling of PMMA

E. Joanni, J. Peressinotto, P. S. Domingues, G. D. O. Setti and D. P. D. Jesus, RSC Adv., 2015, 5, 25089 DOI: 10.1039/C5RA03122B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements