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Nanofluid-Enhanced Laser Lithotripsy Using Conducting Polymer Nanoparticles.

Qingsong Fan1, Junqin Chen2, Arpit Mishra2

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PubMed
Summary
This summary is machine-generated.

This study introduces a nanoparticle fluid to improve laser lithotripsy for urinary stones. The new method significantly enhances stone ablation efficiency with minimal tissue damage, offering a safer treatment.

Keywords:
Ho:YAG laserNIR absorberconducting polymerskidney stone diseaselaser lithotripsy

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Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Urology

Background:

  • Urinary stone disease prevalence is increasing globally.
  • Laser lithotripsy, particularly Ho:YAG laser, is a standard treatment.
  • Improving laser ablation efficiency is crucial for better outcomes.

Purpose of the Study:

  • To investigate a novel nanoparticle-based fluid for enhancing Ho:YAG laser lithotripsy.
  • To evaluate the impact of nanofluids on stone ablation efficiency and safety.

Main Methods:

  • A PEDOT:PSS nanofluid (0.03 wt.%) was used with a clinical Ho:YAG laser lithotripter.
  • Ablation efficiency was measured in spot and scanning treatment modes.
  • Cytotoxicity tests were performed to assess safety.

Main Results:

  • Nanofluid enhanced stone ablation by 38-727% (spot) and 26-75% (scanning).
  • Improved vapor tunnel formation and laser energy transmission were observed.
  • No increase in thermal tissue injury and minimal cytotoxicity were confirmed.

Conclusions:

  • The nanofluid approach significantly improves laser lithotripsy efficiency.
  • This method shows potential for safer and more effective urinary stone treatment.
  • Further research is needed for clinical translation, including aggregation and in vivo studies.