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Related Experiment Video

Updated: Jul 17, 2025

Author Spotlight: Advancing SERS Technology: Au@Carbon Dot Nanoprobes for Label-Free Analysis and Imaging
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Author Spotlight: Advancing SERS Technology: Au@Carbon Dot Nanoprobes for Label-Free Analysis and Imaging

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Red emitting carbon dots: surface modifications and bioapplications.

Dawson Benner1, Pankaj Yadav2, Dhiraj Bhatia2

  • 1Department of Engineering, Texas A&M University College Station 77843 Texas USA.

Nanoscale Advances
|August 28, 2023
PubMed
Summary
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Red-emitting carbon quantum dots (CDs) offer enhanced biological applications due to their brightness and deeper tissue penetration. This review explores their production, surface modifications, and use in translational research.

Area of Science:

  • Nanotechnology
  • Biomedical Engineering
  • Materials Science

Background:

  • Carbon quantum dots (CDs) are nanomaterials with unique optical and chemical properties.
  • CDs are synthesized using simple, green methods from organic precursors.
  • Current research often focuses on blue-emitting CDs, limiting biological applications.

Purpose of the Study:

  • To review red-emitting carbon quantum dots (CDs) for biological applications.
  • To explore production methods, surface modifications, and doping effects.
  • To highlight their potential in translational research.

Main Methods:

  • Literature review of red-emitting CDs.
  • Analysis of synthesis strategies including doping and material mixing.

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  • Examination of biological applications in bioimaging, antibacterial, and therapeutic contexts.

    • Main Results:

    • Red-emitting CDs exhibit superior brightness, photostability, and tissue penetration compared to blue-emitting counterparts.
    • Surface modifications and doping significantly influence QD properties and biological efficacy.
    • Facile synthesis and versatile surface chemistry enable tailored applications.

    Conclusions:

    • Red-emitting CDs are promising for advanced biomedical applications, including deep-tissue bioimaging and therapeutics.
    • Further research into surface engineering is crucial for optimizing their performance.
    • CDs represent a novel class of nanomaterials for translational medicine.