A novel turn-on fluorescent probe for the multi-channel detection of Zn2+ and Bi3+ with different action mechanisms,Analyst

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A novel turn-on fluorescent probe for the multi-channel detection of Zn2+ and Bi3+ with different action mechanisms
Analyst ( IF 3.6 ) Pub Date : 2017-12-08 00:00:00 , DOI: 10.1039/c7an01591g
Shanyi Guang _{1,

2,

3,

4} , Gang Wei _{1,

2,

3,

4,

5} , Zhengquan Yan _{1,

2,

3,

4,

6} , Yuehua Zhang _{2,

3,

4,

5,

7} , Gang Zhao _{1,

2,

3,

4,

5} , Rongliang Wu _{1,

2,

3,

4,

5} , Hongyao Xu _{1,

2,

3,

4,

5}

Affiliation

A novel multifunctional sensing material, RSPT, incorporating rhodamine B hydrazide, a Schiff base, and a phenolic hydroxyl group into triazine, was identified and prepared. After the molecular structure was characterized by FTIR, ¹H NMR, mass spectra and element analysis, it was notably found that there were multichannel turn-on fluorescent responses to Zn²⁺ and Bi³⁺, i.e., a strong fluorescence emission at 481 nm in DMF–water (99/1, v/v) for Zn²⁺ with a color change from colorless to light yellow-green, while an increased fluorescence emission at 580 nm in CH₃CN–water (99/1, v/v) for Bi³⁺ with a color change from colorless to red. Their different action mechanisms for the RSPT–Zn²⁺ and RSPT–Bi³⁺ complexes were investigated and confirmed by means of fluorescent titration, binding constant, Job's plot curve, ¹H NMR titration, and theoretical simulation. RSPT would be a promising turn-on fluorescent chemo-dosimeter for multichannel detection of Zn²⁺ and Bi³⁺ with a detection limit of 3.0 nM for Zn²⁺ and 8.6 nM for Bi³⁺.

中文翻译：

新型开启荧光探针，用于不同作用机理的Zn ²⁺和Bi ³⁺多通道检测

鉴定并制备了将罗丹明B酰肼，席夫碱和酚羟基结合到三嗪中的新型多功能传感材料RSPT。通过FTIR，¹ H NMR，质谱和元素分析对分子结构进行表征后，发现对Zn ²⁺和Bi ³⁺具有多通道开启荧光响应，即在481 nm处有较强的荧光发射。在DM 2-水（99/1，v / v）中，Zn ²⁺的颜色从无色变为浅黄绿色，而在CH ₃ CN-水中（580/99），在580 nm处荧光发射增加（99/1，v / v） v）对于Bi ³⁺颜色从无色变为红色。通过荧光滴定，结合常数，Job's图曲线，¹ H NMR滴定和理论模拟，研究并证实了它们对RSPT-Zn ²⁺和RSPT-Bi ³⁺配合物的不同作用机理。RSPT将是一个有前途的开启荧光化疗剂量计多通道检测锌²⁺和Bi ³⁺与3.0纳米的锌的检测限²⁺和8.6纳米的双³⁺。

更新日期：2017-12-08

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