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Curcumin Is an Iconic Ligand for Detecting Environmental Pollutants.

T Devasena1, N Balasubramanian2, Natarajan Muninathan3

  • 1Centre for Nanoscience and Technology, Anna University, Chennai 608002, Tamil Nadu, India.

Bioinorganic Chemistry and Applications
|April 7, 2022
PubMed
Summary
This summary is machine-generated.

Curcumin, a natural organic ligand, enhances nanomaterial sensors for detecting environmental pollutants like heavy metals and toxic gases. This review highlights curcumin

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Area of Science:

  • Environmental Science
  • Materials Science
  • Analytical Chemistry

Background:

  • Industrialization drives environmental contamination, necessitating advanced pollutant detection methods.
  • Nanomaterial-based sensors offer proficiency in environmental monitoring.
  • Developing effective ligands to boost nanomaterial sensing efficiency remains a key challenge.

Purpose of the Study:

  • To review the application of curcumin as a natural fluorophore in optical and electrochemical sensing of environmental pollutants.
  • To highlight curcumin's potential in developing sensitive and selective nanomaterial-based sensors.
  • To provide references for translating lab-scale concepts into industrial products.

Main Methods:

  • Review of existing literature on curcumin-modified nanomaterials for pollutant detection.
  • Analysis of curcumin's properties (fluorescence, electrocatalysis, keto-enol tautomerism) for sensing applications.
  • Compilation of reported sensing performances (detection limits, selectivity, stability).

Main Results:

  • Curcumin, as an organic ligand, enhances nanomaterial adsorption, optical, and electrochemical properties.
  • Curcumin probes demonstrate high sensitivity, selectivity, repeatability, and stability in nanosystems.
  • Curcumin-based sensors are effective for detecting diverse pollutants including heavy metals (As, Pb, Hg), boron, cyanide, fluoride, nitrophenol, TNT, picric acid, and toxic gases (NH3, HCl).

Conclusions:

  • Curcumin is an ideal natural fluorophore for developing robust nanomaterial-based sensors.
  • Curcumin-modified nanomaterials show significant promise for practical environmental pollution monitoring.
  • Further research focusing on prototype and product development is recommended for industrial application.