섬유

blood compatibility of peo grafted polyurethane and hema/styrene block copolymer surfaces

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 303
hema/styrene (hema/sty) block copolymers and poly(ethylene oxide) 4,000 m.w. (peo4k) grafted biomer (b-peo4k) surfaces have been synthesized, characterized, and evaluated as blood-contacting materials. these surfaces have demonstrated improved blood compatibility, compared to biomer, in in vitro and ex vivo experiments. biomer vascular grafts (6 mm i.d. 7 cm in length) were fabricated by a dip coating process. hema/sty showed a patchy protein distribution pattern with high concentrations of albumin and igg, and relatively less fibrinogen. the biomer and b-peo4k grafts occluded within 1 month, while hema/sty grafts were patent for over 3 months (edited author abstract) 29 refs
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