Optical probes and techniques for O2 measurement in live cells and tissue.
Optical probes and techniques for O2 measurement in live cells and tissue.
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DOI:
10.1007/s00018-011-0914-0
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发表时间:
2012-06
影响因子:
8
通讯作者:
Papkovsky, Dmitri B.
中科院分区:
文献类型:
--
作者:
Dmitriev, Ruslan I.;Papkovsky, Dmitri B.
关键词:
In recent years, significant progress has been achieved in the sensing and imaging of molecular oxygen (O2) in biological samples containing live cells and tissue. We review recent developments in the measurement of O2 in such samples by optical means, particularly using the phosphorescence quenching technique. The main types of soluble O2 sensors are assessed, including small molecule, supramolecular and particle-based structures used as extracellular or intracellular probes in conjunction with different detection modalities and measurement formats. For the different O2 sensing systems, particular attention is paid to their merits and limitations, analytical performance, general convenience and applicability in specific biological applications. The latter include measurement of O2 consumption rate, sample oxygenation, sensing of intracellular O2, metabolic assessment of cells, and O2 imaging of tissue, vasculature and individual cells. Altogether, this gives the potential user a comprehensive guide for the proper selection of the appropriate optical probe(s) and detection platform to suit their particular biological applications and measurement requirements.
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