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Nanoparticles

Breakthrough in Cancer Detection and Therapy: Red-Emitting Nickel-Doped Carbon Dots Show Promise

Strategic Insights

— 2 min read

Researchers from Nanning Normal University have made a significant discovery in the field of cancer detection and therapy. By developing a new type of red-emitting nickel-doped carbon dot (Ni-CDs), they have created a multifunctional platform that can detect and treat cancer simultaneously. The Ni-CDs are synthesized via a simple one-pot hydrothermal method and exhibit excellent properties for deep-tissue imaging and therapeutics.

The innovative red-emitting Ni-CDs have shown great potential in detecting iron ions (Fe) and pyrophosphate ions (PPi), which are crucial biomarkers in various biological processes. Deviations in their concentrations are linked to various diseases, including cancer. With their high sensitivity and selectivity, the Ni-CDs can detect Fe and PPi in real water samples and human urine and blood samples.

Moreover, the Ni-CDs have demonstrated good biocompatibility and enable real-time visualization of intracellular Fe and PPi dynamics in cancer cells. Under 808 nm laser irradiation, the Ni-CDs achieve high photothermal conversion efficiency of 59.1% and generate cytotoxic reactive oxygen species, leading to synergistic photothermal/photodynamic cancer cell apoptosis of 98.8%.

This breakthrough discovery has been peer-reviewed and published in Analytica Chimica Acta.

Key Takeaways:

  • Researchers from Nanning Normal University have developed red-emitting nickel-doped carbon dots (Ni-CDs) for simultaneous detection of Fe and PPi in cancer cells.
  • The Ni-CDs are synthesized via a simple one-pot hydrothermal method and exhibit excellent properties for deep-tissue imaging and therapeutics.
  • The Ni-CDs have shown high sensitivity and selectivity in detecting Fe and PPi in real water samples and human urine and blood samples.
  • Under 808 nm laser irradiation, the Ni-CDs achieve a high photothermal conversion efficiency of 59.1% and generate cytotoxic reactive oxygen species.
  • The Ni-CDs demonstrate good biocompatibility and enable real-time visualization of intracellular Fe and PPi dynamics in cancer cells.
  • The red-emitting Ni-CDs have been used to induce synergistic photothermal/photodynamic cancer cell apoptosis of 98.8%.

Statistics:

  • Detection limit of Fe: 0.051 mM
  • Detection limit of PPi: 0.31 mM
  • Photothermal conversion efficiency: 59.1%
  • Synergistic photothermal/photodynamic cancer cell apoptosis: 98.8%

Sources:

  • An innovative red-emitting nickel-doped carbon dot for simultaneous detection of Fe(III) and pyrophosphate ions, coupled with synergistic photothermal/photodynamic cancer therapy. Analytica Chimica Acta, 2025;1360:344138.
  • Nanning Normal University Reports Findings in Cancer [An innovative red-emitting nickel-doped carbon dot for simultaneous detection of Fe(III) and pyrophosphate ions, coupled with synergistic photothermal/photodynamic cancer therapy]. Nanotechnology Weekly. June 9, 2025; p 2136.

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