Abstract
We present a fabrication method which enables simple and eproducible photopatterning of micron- sized hydrogel arrays inside closed microchips. To achieve this, the glass cover of the microchip is thinned by mechanical grinding and polishing. This procedure reduces the spacing between the photomask and hydrogel precursor and thereby the effects of UV diffraction. We demonstrate the effects of glass cover thickness and roughness, together with different optical lithography recipes on patterning success. The patterning method is tested with two different types of photopolymerizing hydrogels, polyacrylamide and polyethylene glycol diacrylate. The presented method enables in-situ fabrication of welldefined hydrogel patterns for microfluidic platforms
Original language | Undefined |
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Title of host publication | The 19th International Conference on Miniaturized Systems for Chemistry and Life Sciences (uTAS 2015) |
Place of Publication | Gyeongju, Korea |
Publisher | The Chemical and Biological Microsystems Society |
Pages | 1463-1465 |
Number of pages | 3 |
ISBN (Print) | 978-0-9798064-8-3 |
Publication status | Published - 25 Oct 2015 |
Event | 19th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2015 - Hwabaek International Convention Center (HICO), Gyeongju, Korea, Republic of Duration: 25 Oct 2015 → 29 Oct 2015 Conference number: 19 http://www.rsc.org/images/LOC/2015/PDFs/Copyrite.pdf |
Publication series
Name | Proceedings International Conference on Miniaturized Systems for Chemistry and Life Sciences, μTAS |
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Publisher | Chemical and Biological Microsystems Society |
ISSN (Print) | 1556-5904 |
Conference
Conference | 19th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2015 |
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Abbreviated title | MicroTas 2015 |
Country/Territory | Korea, Republic of |
City | Gyeongju |
Period | 25/10/15 → 29/10/15 |
Internet address |
Keywords
- EWI-26554
- METIS-315088
- IR-98703