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Summary

Fluorescent sensors offer sensitive and selective detection of analytes. This review covers probe design and sensing mechanisms for chemical and biological applications.

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Area of Science:

  • Analytical Chemistry
  • Biochemistry
  • Materials Science

Background:

  • Fluorescent sensors have evolved significantly over the past two decades.
  • They are essential tools for detecting biological, chemical, and environmental analytes.
  • These probes offer high sensitivity, selectivity, and specificity.

Purpose of the Study:

  • To review fluorescent probes used in chemo- and biosensors.
  • To discuss principles behind probe design and sensing mechanisms.
  • To highlight applications in physical, chemical, biological sciences, diagnostics, and therapeutics.

Main Methods:

  • Focus on fundamental principles of fluorescent probe design.
  • Exploration of sensing mechanisms including self-immolation, peptide beacons, FRET, and photo-induced electron/charge transfer.
  • Discussion of strategies to overcome biological system complexity using multi-responsive probes.

Main Results:

  • Introduction to diverse fluorescent probes for analyte detection.
  • Explanation of various sensing mechanisms.
  • Demonstration of overcoming challenges in complex biological environments.

Conclusions:

  • Fluorescent probes are versatile tools for sensing diverse species.
  • Advanced probe design enables detection in complex biological systems.
  • These sensors have broad applications in science, diagnostics, and therapeutics.