Conference paper
Functionalization of embedded thiol-ene waveguides for evanescent wave induced fluorescence detection in a microfluidic device
Department of Micro- and Nanotechnology, Technical University of Denmark1
Polymer Micro & Nano Engineering, Department of Micro- and Nanotechnology, Technical University of Denmark2
Fluidic Array Systems and Technology, Department of Micro- and Nanotechnology, Technical University of Denmark3
ChemLabChip, Department of Micro- and Nanotechnology, Technical University of Denmark4
We demonstrate the use of functional surface groups inherently present on off-stoichiometric thiol−ene polymers, for site-specific immobilization of biomolecules and detection by evanescent wave-induced fluorescence. An optofluidic chip featuring an embedded thiol−ene waveguide was selectively functionalized with biotin using photografting.
The biotin was used for immobilization of fluorescently labelled streptavidin, and experiments revealed a linear correlation between streptavidin concentration and fluorescent intensity. To further demonstrate the attractiveness of using thiol−ene for optofluidic devices, the optical properties of thiol−ene was evaluated by determining the transparency and refractive index of the cured polymer.
Language: | English |
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Publisher: | Chemical and Biological Microsystems Society |
Year: | 2013 |
Pages: | 745-747 |
Proceedings: | 17th International Conference on Miniaturized Systems for Chemistry and Life Sciences |
ISBN: | 0979806461 and 9780979806469 |
Types: | Conference paper |
ORCIDs: | Feidenhans'l, Nikolaj Agentoft |