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Issue 24, 2013
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New perspectives for direct PDMS microfabrication using a CD-DVD laser

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Abstract

A simple and inexpensive alternative to high-power lasers for the direct fabrication of microchannels and rapid prototyping of poly-dimethylsiloxane (PDMS) is presented. By focusing the infrared laser beam of a commercial, low-power CD-DVD unit on absorbing carbon micro-cluster additives, highly localized PDMS combustion can be used to etch the polymer, which is otherwise transparent at such wavelengths. Thanks to a precise and automated control of laser conditions, laser-induced incandescence is originated at the material surface and produces high-resolution micropatterns that present properties normally induced with lasers of much greater energies in PDMS: formation of in situ nanodomains, local fluorescence and waveguide patterns. An extensive study of the phenomenon and its performance for PDMS microfabrication are presented.

Graphical abstract: New perspectives for direct PDMS microfabrication using a CD-DVD laser

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Publication details

The article was received on 12 Sep 2013, accepted on 27 Sep 2013 and first published on 27 Sep 2013


Article type: Paper
DOI: 10.1039/C3LC51041G
Citation: Lab Chip, 2013,13, 4848-4854
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    New perspectives for direct PDMS microfabrication using a CD-DVD laser

    M. Hautefeuille, L. Cabriales, R. Pimentel-Domínguez, V. Velázquez, J. Hernández-Cordero, L. Oropeza-Ramos, M. Rivera, M. P. Carreón-Castro, M. Grether and E. López-Moreno, Lab Chip, 2013, 13, 4848
    DOI: 10.1039/C3LC51041G

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