Fabrication of complex PDMS microfluidic structures and embedded functional substrates by one-step injection moulding

C. Szydzik, B. Niego, G. Dalzell, M. Knoerzer, F. Ball, W. S. Nesbitt, R. L. Medcalf, K. Khoshmanesh, A. Mitchell

Research output: Contribution to journalArticleResearchpeer-review

14 Citations (Scopus)

Abstract

We report a novel injection moulding technique for fabrication of complex multi-layer microfluidic structures, allowing one-step robust integration of functional components with microfluidic channels, and fabrication of elastomeric microfluidic valves. This technique simplifies multi-layer microfluidic device fabrication, while significantly increasing device functionality. We demonstrate functional component integration through robust encapsulation of porous polyester membranes, in the context of an in vitro research platform intended to facilitate Blood Brain Barrier (BBB) research. We also demonstrate the fabrication of normally-closed, pneumatically actuated elastomer valves, integrated using the same one-step process. These valves are demonstrated in the context of variable flow resistors used to modulate flow in a pressure driven system.

Original languageEnglish
Pages (from-to)87988-87994
Number of pages7
JournalRSC Advances
Volume6
Issue number91
DOIs
Publication statusPublished - 2016

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