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We synthesized luminescent carbon nanoparticles with copper (Cu2+) that induce apoptosis and cell death in cervical cancer HeLa cells. These nanoparticles also generate reactive oxygen species and can be used for cell imaging.

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Area of Science:

  • Biomaterials Science
  • Nanotechnology
  • Cell Biology

Background:

  • Carbon nanoparticles (CNPs) exhibit unique optical and electronic properties.
  • Copper (Cu2+) ions can influence cellular processes and have therapeutic potential.
  • Targeting cancer cells requires effective delivery and imaging agents.

Purpose of the Study:

  • To synthesize luminescent carbon nanoparticles embedded with Cu2+.
  • To investigate the cytotoxic effects of these composite nanoparticles on cervical cancer HeLa cells.
  • To explore the potential of these nanoparticles for cell imaging.

Main Methods:

  • Synthesis of luminescent carbon nanoparticles.
  • Characterization of nanoparticle size and composition.
  • In vitro studies on HeLa cells to assess apoptosis and reactive oxygen species (ROS) generation.
  • Cell imaging using nanoparticle luminescence.

Main Results:

  • Successfully synthesized luminescent carbon nanoparticles (93 ± 50 nm) embedded with Cu2+.
  • Observed apoptosis and cell death in HeLa cells at a low Cu2+ concentration (2.55 ppm).
  • Attributed cell death to ROS generation induced by the composite nanoparticles.
  • Demonstrated the utility of nanoparticle luminescence for cell imaging.

Conclusions:

  • Luminescent carbon nanoparticles embedded with Cu2+ show promise as a dual-action agent for cervical cancer therapy and imaging.
  • The nanoparticles induce cancer cell death via apoptosis mediated by ROS generation.
  • Further research is warranted to explore their therapeutic efficacy and safety in vivo.