Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Self-assembled Micelle-based Fluorescence Sensor for Extremely Acidic pH Range

강산성 용액의 pH를 측정할 수 있는 미셀기반의 형광센서 개발

  • 이정무 (대구대학교 화학.응용화학과) ;
  • 이성호 (대구대학교 화학.응용화학과)
  • Received : 2020.05.19
  • Accepted : 2020.06.11
  • Published : 2020.08.31
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Abstract

In this study, an effective fluorescence pH sensor based on conjugated polyelectrolyte micelles (CPMs) was devised for detecting extremely acidic conditions. An amphiphilic coumarin derivative (CC12-N), a building block, was prepared, into which an ionizable amino group, aryl amine, was incorporated as a potential hydrophilic moiety. This monomer displays self-assembled micelle formation in extremely acidic pH ranges, giving a hydrophobic π-extended conjugated system at the inner part and hydrophilic functionality at the periphery, resulting in efficient fluorescence intensity enhancement. This new micelle-based fluorescence provides an efficient sensing platform for detecting very low pH values in the presence of competing substances.

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References

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