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Thiourea based conjugated polymer fluorescent chemosensor for Cu+ and its use for the detection of hydrogen peroxide and glucose

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Abstract

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.

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Authors and Affiliations

  1. School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China

    Xin-wei Lu & Rui-yuan Liu  (刘瑞源)

  2. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China

    Xiu-li Chen, Wei-feng Zeng, Xiao-dong Yang & Jin-qing Qu  (瞿金清)

Authors
  1. Xiu-li Chen
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  2. Wei-feng Zeng
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  3. Xiao-dong Yang
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  4. Xin-wei Lu
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  5. Jin-qing Qu  (瞿金清)
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  6. Rui-yuan Liu  (刘瑞源)
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Corresponding authors

Correspondence to Jin-qing Qu  (瞿金清) or Rui-yuan Liu  (刘瑞源).

Additional information

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).

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Chen, Xl., Zeng, Wf., Yang, Xd. et al. Thiourea based conjugated polymer fluorescent chemosensor for Cu+ and its use for the detection of hydrogen peroxide and glucose. Chin J Polym Sci 34, 324–331 (2016). https://doi.org/10.1007/s10118-016-1760-1

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  • DOI: https://doi.org/10.1007/s10118-016-1760-1

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