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Functionalized Quinoxaline for Chromogenic and Fluorogenic Anion Sensing.

Sandeep Kumar Dey1, Mohammad Al Kobaisi2, Sheshanath V Bhosale1

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Summary
This summary is machine-generated.

This review explores quinoxaline-based chemosensors for detecting inorganic anions like fluoride and phosphate. These sensors offer colorimetric and fluorescence responses, aiding biomolecular science applications.

Keywords:
anionschromogenic chemosensorsfluorogenic chemosensorsquinoxalinesensors

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Area of Science:

  • Analytical Chemistry
  • Supramolecular Chemistry
  • Materials Science

Background:

  • Quinoxaline derivatives are versatile scaffolds for designing chemosensors.
  • Inorganic anion sensing remains a significant challenge in chemical and biological analysis.
  • Chromogenic and fluorogenic sensors offer sensitive and selective detection methods.

Purpose of the Study:

  • To comprehensively review recent advances in quinoxaline-based chromogenic and fluorogenic chemosensors for inorganic anions.
  • To discuss the structural diversity and sensing mechanisms of these quinoxaline receptors.
  • To highlight their applications in biomolecular science.

Main Methods:

  • Review of literature on quinoxaline-based anion chemosensors.
  • Analysis of various structural motifs including oligopyrroles, polymers, and sulfonamides.
  • Focus on solution-state sensing using spectroscopic techniques (colorimetric and fluorescence).

Main Results:

  • Integration of anion binding elements with quinoxaline chromophores yields effective anion-responsive chemosensors.
  • Structural modifications lead to improved anion selectivity and specificity.
  • Demonstrated utility in detecting anions such as fluoride, cyanide, acetate, and phosphate.

Conclusions:

  • Quinoxaline-based receptors are highly promising for developing selective inorganic anion chemosensors.
  • Spectroscopic methods coupled with tailored quinoxaline structures enable sensitive anion detection.
  • These chemosensors hold potential for diverse applications, particularly in biomolecular sensing.