Cell behavior on silica-hydroxyapatite coaxial composite

PLoS One. 2021 May 11;16(5):e0246256. doi: 10.1371/journal.pone.0246256. eCollection 2021.

Abstract

Progress in the manufacture of scaffolds in tissue engineering lies in the successful combination of materials such as bioceramics having properties as porosity, biocompatibility, water retention, protein adsorption, mechanical strength and biomineralization. Hydroxyapatite (HA) is a ceramic material with lots of potential in tissue regeneration, however, its structural characteristics need to be improved for better performance. In this study, silica-hydroxyapatite (SiO2-HA) non-woven ceramic electrospunned membranes were prepared through the sol-gel method. Infrared spectra, scanning electron microscopy and XRD confirmed the structure and composition of composite. The obtained SiO2-HA polymeric fibers had approximately 230±20 nm in diameter and were then sintered at 800°C average diameter decreased to 110±17 nm. Three configurations of the membranes were obtained and tested in vitro, showing that the composite of SiO2-HA fibers showed a high percentage of viability on a fibroblast cell line. It is concluded that the fibers of SiO2-HA set in a coaxial configuration may be helpful to develop materials for bone regeneration.

MeSH terms

  • Animals
  • Biocompatible Materials / chemistry
  • Biocompatible Materials / pharmacology
  • Bone Regeneration / drug effects
  • Ceramics / pharmacology*
  • Durapatite / chemistry
  • Durapatite / pharmacology*
  • Fibroblasts / drug effects
  • Fibroblasts / ultrastructure
  • Humans
  • Materials Testing
  • Microscopy, Electron, Scanning
  • Porosity
  • Prostheses and Implants
  • Rats
  • Silicon Dioxide / chemistry
  • Silicon Dioxide / pharmacology*
  • Stress, Mechanical
  • Surface Properties / drug effects
  • Tissue Engineering*
  • Tissue Scaffolds / chemistry

Substances

  • Biocompatible Materials
  • Silicon Dioxide
  • Durapatite

Grants and funding

This research received no external and internal funding.