Cytotoxicity testing of a polyurethane nanofiber membrane modified with chitosan/β-cyclodextrin/berberine suitable for wound dressing application: evaluation of biocompatibility
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In this study we evaluated the biocompatibility of a modified polyurethane nanofiber membrane on a polypropylene spunbond substrate. This material was treated with plasma using diffuse coplanar surface barrier discharge, and subsequent modification was done by continuous spraying of a biologically active chitosan solution (CHIT) containing an inclusion complex of β-cyclodextrin (β-CD) encapsulating berberine (BRB). Biocompatibility was evaluated using several in vitro assays. Human dermal fibroblasts (HDFs) and 3T3 murine fibroblasts were used as biological models. The results of these assays showed that a polyurethane nanofiber membrane modified by CHIT/β-CD/BRB appears to be non-toxic and biocompatible; potentially, it could be used as a wound dressing after further testing.
KeywordsModified polyurethane nanofiber membrane Plasma treatment Biocompatibility 3T3 murine fibroblasts Human dermal fibroblasts
The authors thank Dr. Jacob Bauer for his critical comments on the manuscript and the language editing. This work was supported by the Slovak Research and Development Agency under contract No. APVV 0294-14, by the Slovak Ministry of Education, Science, Research and Sport under contract No: VEGA 1/0297/14 and by Research and Development Operational Programme funded by the ERDF Grant No.: ITMS 26240220086.
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