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Fabrication of PHBV/keratin composite nanofibrous mats for biomedical applications

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Abstract

Keratin is an important protein used in wound healing and tissue recovery. In this study, keratin was modified chemically with iodoacetic acid (IAA) to enhance its solubility in organic solvent. Poly(hydroxybutylate-co-hydroxyvalerate) (PHBV) and modified keratin were dissolved in hexafluoroisopropanol (HFIP) and electrospun to produce nanofibrous mats. The resulting mats were surface-characterized by ATR-FTIR, field-emission scanning electron microscopy (FE-SEM) and electron spectroscopy for chemical analysis (ESCA). The purem-keratin mat was cross-linked with glutaraldehyde vapor to make it insoluble in water. The biodegradation testin vitro showed that the mats could be biodegraded by PHB depolymerase and trypsin aqueous solution. The results of the cell adhesion experiment showed that the NIH 3T3 cells adhered more to the PHBV/m-keratin nanofibrous mats than the PHBV film. The BrdU assay showed that the keratin and PHBV/m-keratin nanofibrous mats could accelerate the proliferation of fibroblast cells compared to the PHBV nanofibrous mats.

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Correspondence to Inn-Kyu Kang.

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Yuan, J., Xing, Z., Park, S. et al. Fabrication of PHBV/keratin composite nanofibrous mats for biomedical applications. Macromol. Res. 17, 850–855 (2009). https://doi.org/10.1007/BF03218625

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Keywords

  • biomedical
  • fibrobalsts
  • keratin
  • nanofiber
  • PHBV