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Laminin Modified Infection‐Preventing Collagen Membrane Containing Silver Sulfadiazine–Hyaluronan Microparticles
Author(s) -
Lee JongEun,
Park JongChul,
Lee Kwang Hoon,
Oh Sang Ho,
Suh Hwal
Publication year - 2002
Publication title -
artificial organs
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.684
H-Index - 76
eISSN - 1525-1594
pISSN - 0160-564X
DOI - 10.1046/j.1525-1594.2002.06890.x
Subject(s) - laminin , silver sulfadiazine , fibroblast , materials science , dermal fibroblast , basement membrane , extracellular matrix , chemistry , membrane , wound healing , biophysics , biomedical engineering , microbiology and biotechnology , immunology , biochemistry , biology , medicine , in vitro
The newly developed laminin modified infection‐preventing collagen membrane consists of a 3 component laminate, comprising 2 outer collagen layers and a central laminin layer. The 2 outer collagen layers (dense and porous layers) were fabricated by air‐drying and freeze drying, respectively, and the laminin layer was formed by a straightforward liquid coating method. In addition, hyaluronan based microparticles containing silver sulfadiazine (AgSD) were incorporated into the 2 collagen layers (AgSD content 50 μg/cm 2 ). Laminin coated collagen surfaces did not promote fibroblast attachment but showed a retarded fibroblast proliferation rate and an increased rate of collagen synthesis versus pure collagen surfaces. In an animal study, a laminin coating on a nonmedicated collagen membrane significantly increased both wound size reduction and vessel proliferation 7 days after application versus polyurethane film. Interestingly, the laminin coated AgSD medicated collagen membrane demonstrated higher wound size reduction and vessel proliferation and lower inflammation than the polyurethane control, suggesting that the laminin AgSD medicated collagen membrane substantially improves dermal wound healing.