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A nopinone based multi-functional probe for colorimetric detection of Cu2+ and ratiometric detection of Ag+

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Abstract

A dual-signal probe PPN based on the natural β-pinene derivative nopinone was synthesized for the colorimetric detection of Cu2+ and ratiometric detection of Ag+. Upon the addition of Ag+, a significant fluorescence change from blue to green was observed with a low detection limit (0.86 μM). However, upon the addition of Cu2+, a significant color change from colorless to yellow was observed with a low detection limit (0.56 μM). The novel probe PPN was applied as a probe for the colorimetric detection of Cu2+ and ratiometric detection of Ag+ with a high selectivity, good sensitivity and fast response time. The detection mechanisms of probe PPN for Cu2+/Ag+ were confirmed by 1H NMR and HRMS-ESI. Besides, probe PPN could sense Cu2+/Ag+ on test strips. Additionally, probe PPN could be applied to quantitatively detect the concentration of Ag+ in water samples and image Ag+ in living cells.

Graphical abstract: A nopinone based multi-functional probe for colorimetric detection of Cu2+ and ratiometric detection of Ag+

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Publication details

The article was received on 13 Jul 2019, accepted on 18 Nov 2019 and first published on 19 Nov 2019


Article type: Paper
DOI: 10.1039/C9PP00297A
Photochem. Photobiol. Sci., 2020, Advance Article

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    A nopinone based multi-functional probe for colorimetric detection of Cu2+ and ratiometric detection of Ag+

    Q. Jiang, Z. Wang, M. Li, J. Song, Y. Yang, X. Xu, H. Xu and S. Wang, Photochem. Photobiol. Sci., 2020, Advance Article , DOI: 10.1039/C9PP00297A

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