| Title | Contamination of PDMS microchannels by lithographic molds |
| Publication Type | Journal Article |
| Year of Publication | 2013 |
| Authors | Bubendorfer, A., Ingham B., Kennedy J.V., and Arnold W.M. |
| Journal | Lab on a Chip - Miniaturisation for Chemistry and Biology |
| Volume | 13 |
| Issue | 22 |
| Pagination | 4312 - 4316 |
| Date Published | 2013 |
| ISSN | 14730197 (ISSN) |
| Keywords | antimony, article, contamination, Dimethylpolysiloxanes, dimeticone, Electroosmotic flow, Microfluidic Analytical Techniques, microfluidics, osmosis, photoinitiator, priority journal, Rutherford backscattering spectrometry, Spectrometry, Surface properties, surface property, synchrotron, X ray fluorescence |
| Abstract | By use of synchrotron X-ray fluorescence and Rutherford backscattering spectrometry, we show the SU-8 soft lithographic process contaminates PDMS. Residues of the antimony containing photoinitiator are transferred from the master mold to the surface of PDMS, uncontrollably intensifying the surface potential, leading to electroosmotic flow variability in PDMS microfluidic devices. © 2013 The Royal Society of Chemistry. |
| URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-84886028560&partnerID=40&md5=4b79ac3b431a825b13d6854b6b9a8b82 |
| DOI | 10.1039/c3lc50641j |
