Polysaccharide nanofibrous scaffolds as a model for in vitro skin tissue regeneration

J Mater Sci Mater Med. 2012 Jun;23(6):1511-9. doi: 10.1007/s10856-012-4630-6. Epub 2012 Apr 11.

Abstract

Tissue engineering and nanotechnology have advanced a general strategy combining the cellular elements of living tissue with sophisticated functional biocomposites to produce living structures of sufficient size and function at a low cost for clinical relevance. Xylan, a natural polysaccharide was electrospun along with polyvinyl alcohol (PVA) to produce Xylan/PVA nanofibers for skin tissue engineering. The Xylan/PVA glutaraldehyde (Glu) vapor cross-linked nanofibers were characterized by SEM, FT-IR, tensile testing and water contact angle measurements to analyze the morphology, functional groups, mechanical properties and wettability of the fibers for skin tissue regeneration. The cell-biomaterial interactions were studied by culturing human foreskin fibroblasts on Xylan/PVA Glu vapor cross-linked and Xylan/PVA/Glu blend nanofibrous scaffolds. The observed results showed that the mechanical properties (72 %) and fibroblast proliferation significantly increased up to 23 % (P < 0.05) in 48 h Glu vapor cross-linked nanofibers compared to 24 h Glu vapor cross-linked Xylan/PVA nanofibers. The present study may prove that the natural biodegradable Xylan/PVA nanofibrous scaffolds have good potential for fibroblast adhesion, proliferation and cell matrix interactions relevant for skin tissue regeneration.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biocompatible Materials / chemistry
  • Cell Proliferation
  • Cell Shape
  • Cells, Cultured
  • Cross-Linking Reagents
  • Fibroblasts / cytology
  • Fibroblasts / physiology
  • Glutaral
  • Humans
  • Materials Testing
  • Microscopy, Electron, Scanning
  • Models, Biological
  • Nanofibers / chemistry*
  • Nanofibers / ultrastructure
  • Polyvinyl Alcohol
  • Regeneration / physiology*
  • Skin Physiological Phenomena*
  • Skin, Artificial*
  • Spectroscopy, Fourier Transform Infrared
  • Tensile Strength
  • Tissue Engineering
  • Tissue Scaffolds / chemistry*
  • Xylans / chemistry*

Substances

  • Biocompatible Materials
  • Cross-Linking Reagents
  • Xylans
  • Polyvinyl Alcohol
  • Glutaral