Journal
BIOMEDICAL MICRODEVICES
Volume 18, Issue 1, Pages -Publisher
SPRINGER
DOI: 10.1007/s10544-015-0027-x
Keywords
Microfabrication; Microfluidic; Microchannel; Micromilling; Pmma; Replica moulding; Pdms; Emulsions; Microbubbles
Funding
- Institute of Engineering and Technology through the AF Harvey Award
- Engineering and Physical Sciences Research Council [EP/I021795/1] Funding Source: researchfish
- EPSRC [EP/I021795/1] Funding Source: UKRI
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We describe a cost-effective and simple method to fabricate PDMS-based microfluidic devices by combining micromilling with replica moulding technology. It relies on the following steps: (i) microchannels are milled in a block of acrylic; (ii) low-cost epoxy adhesive resin is poured over the milled acrylic block and allowed to cure; (iii) the solidified resin layer is peeled off the acrylic block and used as a mould for transferring the microchannel architecture onto a PDMS layer; finally (iv) the PDMS layer is plasma bonded to a glass surface. With this method, microscale architectures can be fabricated without the need for advanced technological equipment or laborious and time-consuming intermediate procedures. In this manuscript, we describe and validate the microfabrication procedure, and we illustrate its applicability to emulsion and microbubble production.
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