A nopinone based multi-functional probe for colorimetric detection of Cu2+ and ratiometric detection of Ag.,Photochemical & Photobiological Sciences

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A nopinone based multi-functional probe for colorimetric detection of Cu2+ and ratiometric detection of Ag.
Photochemical & Photobiological Sciences ( IF 2.7 ) Pub Date : 2019-11-19 , DOI: 10.1039/c9pp00297a
Qian Jiang ₁ , Zhonglong Wang ₁ , Mingxin Li ₁ , Jie Song ₂ , Yiqin Yang _{3,

4} , Xu Xu _{1,

2} , Haijun Xu _{1,

2} , Shifa Wang _{1,

2}

Affiliation

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.

中文翻译：

基于nopinone的多功能探针，用于比色检测Cu2 +和比例检测Ag。

合成了基于天然β-pine烯衍生物nopinone的双信号探针PPN，用于比色检测Cu ²⁺和比例检测Ag ⁺。加入Ag ^+后，观察到的荧光强度从蓝色变为绿色，检测限较低（0.86μM）。但是，在添加Cu ^2+时，观察到较低的检测限（0.56μM），从无色到黄色都有明显的颜色变化。新型探针PPN用作Cu ²⁺的比色检测和Ag ^+的比例检测的探针具有高选择性，良好的灵敏度和快速的响应时间。¹ H NMR和HRMS-ESI证实了探针PPN对Cu ²⁺ / Ag ⁺的检测机理。此外，探针PPN可以检测试纸上的Cu ²⁺ / Ag ⁺。此外，探针PPN可用于定量检测水样中的Ag ⁺浓度和活细胞中的Ag ⁺图像。

更新日期：2019-11-19

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