Direct Photopolymerisation of PEG-Methacrylate Oligomers for an Easy Prototyping of Microfluidic Structures
✍ Scribed by S. Turri; M. Levi; E. Emilitri; R. Suriano; R. Bongiovanni
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 427 KB
- Volume
- 211
- Category
- Article
- ISSN
- 1022-1352
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✦ Synopsis
Abstract
A photocurable polymer mixture made of poly(ethylene glycol) (PEG) dimethacrylate and monomethacrylate is proposed as structural material for the fabrication and easy prototyping of the microfluidics for Lab‐on‐Chip (LOC) devices. The kinetics of photopolymerisation and some material properties such as its viscoelastic behaviour (by dynamic‐mechanical analysis) and surface wettability (by contact angle) were studied. The PCR biocompatibility of the PEG crosslinked material was favourably assessed by preliminary in vitro tests. A direct fabrication method of controlled geometry microchannels is finally presented by direct photopolymerisation under UV light irradiation through photomasks without the need of a master. Finally the same process was successfully used to assembly and seal the microchannels.
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