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Nitrogen-doped carbon dots: Recent developments in its fluorescent sensor applications.

Sathishkumar Munusamy1, Triveni Rajashekhar Mandlimath2, Puchakayala Swetha3

  • 1Department of Chemistry, Faculty of Science, Chulalongkorn University, Phayathai Road, Bangkok, 10330, Pathumwan, Thailand.

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|May 7, 2023
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Summary

Nitrogen-doped carbon dots (N-CDs) offer unique properties for fluorescent sensors. This review covers their synthesis, sensing mechanisms, and diverse applications in detecting various analytes.

Keywords:
Fluorescent properties of nitrogen-doped carbon dotsFluorescent sensorNitrogen-doped carbon dotsSensor designSynthesis of carbon dots

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Analytical Chemistry

Background:

  • Carbon dots (CDs) are nanomaterials with desirable properties like low toxicity and high stability.
  • Nitrogen doping enhances CDs' characteristics, making nitrogen-doped CDs (N-CDs) particularly promising.
  • N-CDs have emerged as versatile tools in sensing applications.

Purpose of the Study:

  • To review recent advancements in nitrogen-doped carbon dots (N-CDs) for fluorescent sensor applications.
  • To cover the synthesis, fluorescent properties, sensing mechanisms, and applications of N-CDs.
  • To discuss the future potential of N-CDs in research and development.

Main Methods:

  • Review of synthetic and sustainable methods for N-CD preparation.
  • Analysis of the fluorescent characteristics and sensing mechanisms of N-CDs.
  • Comprehensive survey of N-CDs' application as fluorescent sensors.

Main Results:

  • N-CDs exhibit tunable fluorescence properties suitable for sensing.
  • Various synthetic routes enable sustainable production of N-CDs.
  • N-CDs have demonstrated successful sensing of cations, anions, small molecules, enzymes, antibiotics, pathogens, explosives, and pesticides.

Conclusions:

  • Nitrogen-doped carbon dots are highly effective fluorescent sensors.
  • N-CDs offer a promising platform for diverse analytical applications.
  • Further research into N-CDs will unlock new sensing capabilities and applications.