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A unique bifunctional probe for detecting silicate anion and cupric cation: the modified silica nanoparticles and coordination

Abstract

Novel triphenylamine (TPA)-based derivative L which shows strong affinity for SiO32- and fluorometric detection of Cu2+ over other anions or cations, has been synthesized by simple steps. The experimental results displayed that derivative L has a remarkable sensitivity towards SiO32- by producing the separately dispersed and modified silica nanoparticles (NPs) with an average size of 377 nm in acetonitrile solution. Moreover, L also displayed obvious selectivity to Cu2+ via 29-fold fluorescence intensity enhancement with a blue shift of 33 nm due to the formation of a 2:1 complex at room temperature. In addition, the probe could map the distribution of intracellular SiO32- or Cu2+ in live cells by fluorescence confocal microscopy.

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Publication details

The article was received on 01 Sep 2018, accepted on 11 Oct 2018 and first published on 12 Oct 2018


Article type: Paper
DOI: 10.1039/C8AY01920G
Citation: Anal. Methods, 2018, Accepted Manuscript
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    A unique bifunctional probe for detecting silicate anion and cupric cation: the modified silica nanoparticles and coordination

    M. Yang, T. Yu, H. Zhou, M. Wu, X. zhu, X. Zhang, L. Kong, W. Zhu, Z. Wu and Y. Tian, Anal. Methods, 2018, Accepted Manuscript , DOI: 10.1039/C8AY01920G

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