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Related Experiment Video

Updated: Jul 19, 2025

An “All-laser” Endothelial Transplant
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Nanothermometry-Enabled Intelligent Laser Tissue Soldering.

Oscar Cipolato1,2, Lucas Dosnon1,2, Jachym Rosendorf3,4

  • 1Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, 8092, Zurich, Switzerland.

Small Methods
|August 17, 2023
PubMed
Summary
This summary is machine-generated.

Intelligent laser tissue soldering (iSoldering) uses nanoparticles for precise temperature control, enabling effective and safe tissue fusion. This minimally-invasive technique offers improved wound healing and reduced complications for various surgical applications.

Keywords:
nanotechnologysurgerysuturingthermoplasmonicstissue sealing

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Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Surgical Innovation

Background:

  • Traditional sutures and staples for tissue repair have limitations, including mechanical mismatch, infection risk, and fluid leakage.
  • Laser tissue soldering offers a minimally-invasive alternative but faces challenges in temperature monitoring and control, hindering clinical use.

Purpose of the Study:

  • To introduce intelligent laser tissue soldering (iSoldering) with integrated nanothermometry as a solution to overcome limitations of current laser tissue soldering techniques.
  • To demonstrate the efficacy of iSoldering for high-performance, leak-tight tissue sealing with enhanced safety and control.

Main Methods:

  • Incorporation of thermoplasmonic and nanothermometry nanoparticles into proteinaceous solders.
  • Utilizing nanoparticles for heat confinement and non-invasive temperature monitoring and control during laser soldering.
  • Application of iSolder using infrared light from a medically approved source.

Main Results:

  • iSoldering enables precise temperature control, preventing overheating and associated complications.
  • Achieved high-performance, leak-tight tissue seals with excellent mechanical properties.
  • Demonstrated resistance of seals to chemically aggressive fluids, such as gastrointestinal juice.

Conclusions:

  • Intelligent laser tissue soldering (iSoldering) provides a reproducible and well-controlled method for tissue sealing.
  • The technology is adaptable for surgical use, with potential applications in cardiovascular, visceral, and plastic surgery.
  • iSoldering offers a promising advancement for minimally-invasive surgery, improving patient outcomes.