Tribology Letters

, Volume 55, Issue 1, pp 103–109 | Cite as

Lubricating Medical Devices with Fullerene-Like Nanoparticles

  • Ohad Goldbart
  • Anastasia Sedova
  • Lena Yadgarov
  • Rita Rosentsveig
  • Dmitry Shumalinsky
  • Leonid Lobik
  • H. Daniel Wagner
  • Reshef Tenne
Original Paper
First Online:
Received:
Accepted:

Abstract

In the present work, MoS2 nanoparticles with fullerene-like structure, and most particularly those doped with minute amounts of rhenium atoms, are used as additive to medical gels in order to facilitate their entry into constricted openings of soft material rings. This procedure is used to mimic the entry of endoscopes to constricted openings of the human body, like urethra, etc. It is shown that the Re-doped nanoparticles reduce the traction force used to retrieve the metallic lead of the endoscope from the soft ring by a factor close to three times with respect to the original gel. The mechanism of the mitigation of both friction and adhesion forces in these systems by the nanoparticles is discussed.

Keywords

Fullerene-like nanoparticles Tribology Urology Endoscope 
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Notes

Acknowledgments

We wish to express our gratitude to Dr. Nir Kampf for the help with the rheological measurements. This research was supported by the Kamin program of the Office of Chief Scientist, Israeli Ministry of Economy. We are also grateful to the support of Harold Perlman Foundation; the Irving and Azelle Waltcher Foundation in honor of Prof. Moshe Levy and the Irving and Cherna Moskowitz Center for Nano and Bio-Nano Imaging. RT holds the Drake Family Chair in Nanotechnology and is the director of the Helen and Martin Kimmel Center for Nanoscale Science. H. Daniel Wagner is the recipient of the Livio Norzi Professorial Chair in Materials Science.

Supplementary material

11249_2014_337_MOESM1_ESM.tif (799 kb)
Supplementary material 1 (TIFF 799 kb)

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Ohad Goldbart
    • 1
  • Anastasia Sedova
    • 1
    • 2
  • Lena Yadgarov
    • 1
  • Rita Rosentsveig
    • 1
  • Dmitry Shumalinsky
    • 3
  • Leonid Lobik
    • 3
  • H. Daniel Wagner
    • 1
  • Reshef Tenne
    • 1
  1. 1.Department of Materials and InterfacesWeizmann Institute of scienceRehovotIsrael
  2. 2.Azrieli - College of Engineering JerusalemJerusalemIsrael
  3. 3.Urology DepartmentBarzilai Medical CenterAshkelonIsrael

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