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Summary: Fabrication of reversibly adhesive fluidic devices using magnetism
Marjan Rafat,a
Danielle R. Raad,b
Amy C. Rowata
and Debra T. Auguste*a
Received 23rd April 2009, Accepted 9th July 2009
First published as an Advance Article on the web 22nd July 2009
DOI: 10.1039/b907957b
Fluidic devices are often made by irreversibly bonding a polydimethylsiloxane (PDMS) mold to itself or
a glass substrate by plasma treatment. This method limits the range of materials for fluidic device
fabrication and utility for subsequent processing. Here, we present a simple and inexpensive method to
fabricate fluidic devices using magnets to reversibly adhere PDMS and other polymer matrices to glass
or gel substrates. This approach enables fluidic devices to be fabricated from a variety of materials other
than PDMS and glass. Moreover, this method can be used to fabricate composite devices, three-
dimensional scaffolds and hydrogel-based fluidic devices.
Introduction
Capable of manipulating picoliter to nanoliter volumes of fluid,
microfluidic devices are used in fields ranging from biotechnology
to analytical chemistry.1
The most common method for bonding
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