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A Two-Photon Ratiometric ESIPT Probe for Fast Detection and Bioimaging of Palladium Species

Abstract

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

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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, Accepted Manuscript
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    A Two-Photon Ratiometric ESIPT Probe for Fast Detection and Bioimaging of Palladium Species

    W. Luo, J. Li and 伟. 刘, Org. Biomol. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7OB01189J

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