Abstract
We present a micro-optofluidic device with an integrated optical fiber to enable real time electrolyte measurements. The target application is, in-line electrolyte monitoring during dialysis. The device is fabricated in PDMS (polydimethylsiloxane) using soft-lithography. The optical sensing principle is based on selective fluorescence quenching of PET (photoinduced electron transfer) ON-OFF process. We have covalently immobilized these PET sensor molecules on the PDMS microchannel walls. A proof-of-concept device is presented for sodium concentrations measurement in a flowing medium. The first results show a clear relation between sodium concentrations and fluorescence intensity.
Original language | English |
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Title of host publication | Proceedings of the 5th European Conference on Microfluidics |
Editors | Jürgen Brandner, Stéphane Colin, David Newport, Christophe Serra |
Place of Publication | Paris |
Publisher | SHF |
Pages | 89-92 |
ISBN (Electronic) | 979-10-93567-17-4 |
Publication status | Published - 28 Feb 2018 |
Event | 5th European Conference on Microfluidics (µFlu’18) - Strassbourg, France Duration: 28 Feb 2018 → 2 Mar 2018 Conference number: 5 http://mflu-negf-2018.com/ |
Conference
Conference | 5th European Conference on Microfluidics (µFlu’18) |
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Abbreviated title | µFlu’18 |
Country/Territory | France |
City | Strassbourg |
Period | 28/02/18 → 2/03/18 |
Internet address |