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Issue 49, 2014
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High selectivity up-converted fluorescence turn-on probe for Zn2+ based on PAMAM hydroxy-naphthalene Schiff-bases (C[double bond, length as m-dash]N) half-organic quantum dots

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Abstract

The dendrimer PNS-G0 with Schiff-base imines (C[double bond, length as m-dash]N) realizes highly selective and common fluorescence (λex = 400 nm) or up-converted fluorescence (λex = 800 nm) turn-on effect to qualitatively and quantitatively detect zinc ions (Zn2+). The PNS-G0 + Zn2+ complex (C[double bond, length as m-dash]N_Zn_O) fluorescence emitting parts were firstly proposed as half-organic quantum dots (HOQDs). The HOQDs probe PNS-G0 for Zn2+ by the coordination method based on imine isomerization (inhibition) mechanism, which has potential applications in biological imaging, analytical chemistry, and optical physics areas.

Graphical abstract: High selectivity up-converted fluorescence turn-on probe for Zn2+ based on PAMAM hydroxy-naphthalene Schiff-bases (C [[double bond, length as m-dash]] N) half-organic quantum dots

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Publication details

The article was received on 28 Feb 2014, accepted on 12 May 2014 and first published on 12 May 2014


Article type: Paper
DOI: 10.1039/C4RA01758G
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RSC Adv., 2014,4, 25510-25519

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    High selectivity up-converted fluorescence turn-on probe for Zn2+ based on PAMAM hydroxy-naphthalene Schiff-bases (C[double bond, length as m-dash]N) half-organic quantum dots

    Y. Ji and Y. Qian, RSC Adv., 2014, 4, 25510
    DOI: 10.1039/C4RA01758G

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