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  • Title: Quinoline-based hydrazone for colorimetric detection of Co2+ and fluorescence turn-on response of Zn2.
    Author: Gao LL, Li SP, Wang Y, Wu WN, Zhao XL, Li HJ, Xu ZH.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2020 Apr 05; 230():118025. PubMed ID: 31927511.
    Abstract:
    A quinoline-based hydrazone, namely, bis((quinolin-8-yl)methylene)carbonohydrazide (1), has been designed and synthesized, which could be used as a dual probe for selective recognition of Co2+ and Zn2+ by monitoring changes in absorption and fluorescence spectral pattern, respectively. The detection limits of 1 for these two ions are 0.21 and 0.66 μM, respectively. The complex formation between 1 and Co2+/Zn2+ is responsible for the detection process, as confirmed through several spectral methods and DFT calculations. The application of the as-synthesized sensor is demonstrated in Zn2+ imaging in living cells.
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