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Changes in polyurethane calcification due to antibiotics

T Chandy1, S C Vasudev, C P Sharma

  • 1Division of Biosurface Technology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Poojappura, Trivandrum, India.

Artificial Organs
|July 1, 1996
PubMed
Summary
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Certain aminoglycoside antibiotics can alter the surface properties of polyurethane materials, potentially reducing calcification. This finding may lead to improved artificial vascular implants by modulating calcium binding and crystallization processes.

Area of Science:

  • Biomaterials Science
  • Surface Chemistry
  • Vascular Engineering

Background:

  • Developing artificial materials for long-term vascular applications requires understanding surface-induced calcification.
  • Calcification on biomaterials can lead to implant failure and complications within the vascular system.

Purpose of the Study:

  • To investigate the process of surface-induced calcification on porous polyurethane.
  • To evaluate the role of specific antibiotics in modulating the calcification of polyurethane surfaces.

Main Methods:

  • Porous polyurethane was incubated in metastable calcium phosphate solutions.
  • The influence of certain aminoglycoside antibiotics on the polyurethane surface and its mineralization was assessed.
  • Calcium transport through the polyurethane material was analyzed in the presence of antibiotics.

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Main Results:

  • Aminoglycoside antibiotics were found to modify polyurethane surfaces.
  • These modifications influenced the subsequent mineralization process of the polyurethane.
  • Antibiotics appeared to alter calcium transport across the polyurethane material.

Conclusions:

  • Certain aminoglycoside antibiotics can modulate the surface calcium binding and crystallization on polyurethane.
  • Antibiotics may offer a dual benefit: antibacterial action and control over biomaterial calcification.
  • Further research is necessary to translate these findings into practical applications for vascular implants.