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Issue 1, 2014
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Visual and near IR (NIR) fluorescence detection of Cr3+ in aqueous media via spirobenzopyran ring opening with application in logic gate and bio-imaging

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Abstract

A new spirobenzopyran derivative (SPNH) was designed and synthesized which was applied in simultaneous colorimetric and NIR fluorescence detections for Cr3+. This spirobenzopyran receptor is normally colorless in aqueous organic media but the formation of merocyanine occurs by Cr3+ showing a yellow color. Here the formation of yellow color in UV-vis spectra and strong NIR fluorescence emission at 675 nm makes SPNH a good sensor for Cr3+ ion. It is also found to be useful in cell imaging and in construction of logic gate. It shows INHIBIT gate in fluorescence and OR gate in absorption. To the best of our knowledge, this is the first report of NIR fluorescence emission of a spirobenzopyran derivative by Cr3+ and its application to cell-biology and also in the logic gate.

Graphical abstract: Visual and near IR (NIR) fluorescence detection of Cr3+ in aqueous media via spirobenzopyran ring opening with application in logic gate and bio-imaging

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Publication details

The article was received on 09 Jul 2013, accepted on 13 Sep 2013 and first published on 16 Sep 2013


Article type: Paper
DOI: 10.1039/C3DT51851E
Citation: Dalton Trans., 2014,43, 231-239
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    Visual and near IR (NIR) fluorescence detection of Cr3+ in aqueous media via spirobenzopyran ring opening with application in logic gate and bio-imaging

    S. Goswami, A. K. Das, A. K. Maity, A. Manna, K. Aich, S. Maity, P. Saha and T. K. Mandal, Dalton Trans., 2014, 43, 231
    DOI: 10.1039/C3DT51851E

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