Polydimethylsiloxane: A Feasibility Study of a Thromboresistant Biomaterial,

Abstract

Silicone rubber as used in blood contacting situations usually contains fillers, catalyst and other additives. In this study, polydimethylsiloxane (PDMS) alone was cross-linked by ionizing radiation in a nitrogen atmosphere to produce a 'pure' silicone rubber. This material exhibited a Lee-White clotting time over 45 minutes and a clotting time of 90 minutes when air-blood contact was minimized. Comparable times for commercial silicones are 25 and 60 minutes. In extracorporeal testing using a 'Mini Lung', an irradiated PDMS coated membrane demonstrated greatly improved thromboresistance over standard silicone rubber membranes. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1974
Accession Number
AD0787464

Entities

People

  • E. W. Stool
  • P. K. Weathersby
  • T. Kolobow

Organizations

  • Armed Forces Radiobiology Research Institute

Tags

DTIC Thesaurus Topics

  • Additives (Chemicals)
  • Atmospheres
  • Biomaterials
  • Biomedical And Dental Materials
  • Catalysts
  • Feasibility Studies
  • Fillers
  • Ionizing Radiation
  • Materials
  • Membranes
  • Nitrogen
  • Radiation
  • Specialty Uses Of Chemicals
  • Standards

Readers

  • Cardiovascular Physiology
  • Polymer Science and Engineering.
  • Surface Coatings Technology.