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Hypoxia on a chip: a novel approach for patch-clamp studies in a microfluidic system with full oxygen control
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
Umeå universitet, Integrativ Medicinsk Biologi, Fysiologi.
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
Show others and affiliations
2012 (English)In: World Congress on Medical Physics and Biomedical Engineering, May 26-31, 2012, Beijing, China / [ed] Mian Long, Berlin: Encyclopedia of Global Archaeology/Springer Verlag, 2012, 313-316 p.Conference paper (Refereed)
Abstract [en]

Here a new approach to perform patch-clamp investigations under anoxic and normoxic conditions on nerve cells from Sprague Dawley rats is presented. A patch-clamp micropipette is integrated within a poly-methyl methacrylate (PMMA) based microchip giving optimal control over the oxygen content and the biochemical environment. Nerve cells were trapped by optical tweezers and steered towards the patch-clamp micropipette within the micro-channels. Several experiments were performed to show proof of principle. The oxygen content within the microfluidic chamber was measured to 0.5-1.5 %. The photo-induced effect of the optical tweezers on the nerve cells was investigated in an open Petri dish. The optical trapping did not influence measurements. The microfluidic system was further tested in patch-clamp experiments. This approach showed significant advantages regarding the tuning of the oxygen content and may be used in various electrophysiological investigations of single cells demanding optimal control of the surroundings.

Place, publisher, year, edition, pages
Berlin: Encyclopedia of Global Archaeology/Springer Verlag, 2012. 313-316 p.
Series
IFMBE proceedings, ISSN 1680-0737 ; 39
National Category
Other Medical Engineering
Research subject
Medical Engineering for Healthcare
Identifiers
URN: urn:nbn:se:ltu:diva-39376DOI: 10.1007/978-3-642-29305-4_84Local ID: e1b2ebc7-ed54-44d5-b957-6d495c7b3f9dISBN: 978-3-642-29304-7 (print)OAI: oai:DiVA.org:ltu-39376DiVA: diva2:1012887
Conference
World Congress on Medical Physics and Biomedical Engineering : 26/05/2012 - 31/05/2012
Note

Validerad; 2012; 20120808 (ysko)

Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2016-10-19Bibliographically approved

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Publisher's full texthttp://www.springer.com/engineering/biomedical+engineering/book/978-3-642-29304-7

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CiteExportLink to record
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