alexa A highly selective and non-reaction based chemosensor for the detection of Hg2+ ions using a luminescent iridium(III) complex.


Biosensors Journal

Author(s): Chan DS, Fu WC, Wang M, Liu LJ, Leung CH, , Chan DS, Fu WC, Wang M, Liu LJ, Leung CH,

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Abstract We report herein a novel luminescent iridium(III) complex with two hydrophobic carbon chains as a non-reaction based chemosensor for the detection of Hg(2+) ions in aqueous solution (<0.002\% of organic solvent attributed to the probe solution). Upon the addition of Hg(2+) ions, the emission intensity of the complex was significantly enhanced and this change could be monitored by the naked eye under UV irradiation. The iridium(III) complex shows high specificity for Hg(2+) ions over eighteen other cations. The system is capable of detecting micromolar levels of Hg(2+) ions, which is within the range of many chemical systems.
This article was published in PLoS One and referenced in Biosensors Journal

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