Citation: Xiu-li Chen, Wei-feng Zeng, Xiao-dong Yang, Xin-wei Lu, Jin-qing Qu, Rui-yuan Liu. Thiourea Based Conjugated Polymer Fluorescent Chemosensor for Cu+ and Its Use for the Detection of Hydrogen Peroxide and Glucose[J]. Chinese Journal of Polymer Science, ;2016, 34(3): 324-331. doi: 10.1007/s10118-016-1760-1 shu

Thiourea Based Conjugated Polymer Fluorescent Chemosensor for Cu+ and Its Use for the Detection of Hydrogen Peroxide and Glucose

1.
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
2.
School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China

Received Date: 5 September 2015
Revised Date: 16 November 2015

Fund Project: This work was financially supported by the National Natural Science Foundation of China (Nos. 21074037 and 51173050), Natural Science Foundation of Guangdong, China (No. 2015A03031) and Special Project on the Integration of Industry, Education and Research of Guangdong Province (Nos. 2014B090903010, 2012A090300004 and 2015B090925006).

A novel conjugated polymer, poly(1), containing thiourea moieties in main chain is synthesized via Suzuki coupling reaction. The addition of cuprous ion quenches the fluorescence of poly(1), whereas the fluorescence changes slightly upon addition of other metal ions, exhibiting the fluorescent almost turn-off sensing ability towards Cu+. When hydrogen peroxide was added to the solution containing poly(1) and Cu+, Cu+ was oxidized into Cu2+, resulting in the fluorescence recovery. The H2O2 released from glucose oxidation by glucose oxidase (GOD) also recovered the fluorescence of poly(1)/Cu+ solution. The results indicated that the poly(1)/Cu+ solution could serve as a sensing platform for hydrogen peroxide and glucose.
- Conjugated polymer,
- Thiourea,
- Cuprous ion,
- Hydrogen peroxide,
- Glucose
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沈阳化工大学材料科学与工程学院沈阳 110142