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Issue 27, 2017
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A two-photon ratiometric ESIPT probe for fast detection and bioimaging of palladium species

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Abstract

A novel ratiometric ESIPT fluorescent probe, which is specific for palladium species of all the typical oxidation states (0, +2, and +4), has been designed. Notably, based on the excited state intramolecular proton transfer (ESIPT) process, the probe exhibits a ratiometric fluorescent response to palladium species with a low detection limit (9.0 nM, 0.96 ppb) in about 1.5 min at room temperature. Moreover, it has been successfully used as a two-photon ratiometric fluorescent palladium probe for in vivo and three-dimensional imaging with low cytotoxicity and autofluorescence. Compared with other reported palladium probes, the probe displays a shorter ratiometric response time and lower detection limit in milder test conditions. All of the results indicate that the probe may be favorable for environmental and biological applications.

Graphical abstract: A two-photon ratiometric ESIPT probe for fast detection and bioimaging of palladium species

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Publication details

The article was received on 16 May 2017, accepted on 19 Jun 2017 and first published on 19 Jun 2017


Article type: Paper
DOI: 10.1039/C7OB01189J
Citation: Org. Biomol. Chem., 2017,15, 5846-5850
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    A two-photon ratiometric ESIPT probe for fast detection and bioimaging of palladium species

    W. Luo, J. Li and W. Liu, Org. Biomol. Chem., 2017, 15, 5846
    DOI: 10.1039/C7OB01189J

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