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An optical multifrequency phase-modulation method using microbeads for measuring intracellular oxygen concentrations in plants

A technique has been developed to measure absolute intracellular oxygen concentrations in green plants. Oxygen-sensitive phosphorescent microbeads were injected into the cells and an optical multifrequency phase-modulation technique was used to discriminate the sensor signal from the strong autofluorescence of the plant tissue. The method was established using photosynthesis-competent cells of the giant algae Chara corallina L., and was validated by application to various cell types of other plant species.

Identiferoai:union.ndltd.org:Potsdam/oai:kobv.de-opus-ubp:1223
Date January 2005
CreatorsSchmälzlin, Elmar, Dongen, Joost T. van, Klimant, Ingo, Marmodée, Bettina, Steup, Martin, Fishahn, Joachim, Geigenberger, Peter, Löhmannsröben, Hans-Gerd
PublisherUniversität Potsdam, Mathematisch-Naturwissenschaftliche Fakultät. Institut für Chemie
Source SetsPotsdam University
LanguageEnglish
Detected LanguageEnglish
TypePostprint
Formatapplication/pdf
SourceBiophysical Journal. - ISSN 1542-0086 (online). - 89 (2005), S. 1339 - 1345
Rightshttp://opus.kobv.de/ubp/doku/urheberrecht.php

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