섬유

Microstructural changes in Polyester Biotextiles during Implantation in Humans.

  • 출판일2001.07
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 245
Thermal analysis, Fourier transform infrared spectroscopy, and vapor phase dyeing methods characterized microstructural changes in woven, knit, felted, and braided polyethylene terephthalate (PET) fabrics implanted in vivo for 2-16 years. Scanning electron photomicrographs showed that PET fibers became more crystalline due to hydroytic biodegradation near the surface. A slow annealing effect in vivo at 37 degrees centigrade after fiber swelling and molecular chain scission resulted in the loss of amorphous material. PET biotextiles have biomedical applications in sutures, internal patches, ligament prostheses, hernia repair meshes, heart valve cuffs, and endovascular stent grafts. 11 refs.
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