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Issue 5, 2010
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Irreversible, direct bonding of nanoporous polymermembranes to PDMS or glass microdevices

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Abstract

A method for integrating porous polymer membranes such as polycarbonate, polyethersulfone and polyethylene terephthalate to microfluidic devices is described. The use of 3-aminopropyltriethoxysilane as a chemical crosslinking agent was extended to integrate membranes with PDMS and glass microfluidic channels. A strong, irreversible bond between the membranes and microfluidic structure was achieved. The bonding strength in the APTES treated devices was significantly greater than in devices fabricated using either a PDMS “glue” or two-part epoxy bonding method. Evaluation of a filtering microdevice and the pore structure via SEM indicates the APTES conjugation does not significantly alter the membrane transport function and pore morphology.

Graphical abstract: Irreversible, direct bonding of nanoporous polymer membranes to PDMS or glass microdevices

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Article information


Submitted
25 Nov 2009
Accepted
23 Dec 2009
First published
07 Jan 2010

Lab Chip, 2010,10, 548-552
Article type
Communication

Irreversible, direct bonding of nanoporous polymer membranes to PDMS or glass microdevices

K. Aran, L. A. Sasso, N. Kamdar and J. D. Zahn, Lab Chip, 2010, 10, 548
DOI: 10.1039/B924816A

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