A new biocompatible and antibacterial phosphate free glass-ceramic for medical applications

Sci Rep. 2014 Jun 25:4:5440. doi: 10.1038/srep05440.

Abstract

In the attempt to find valid alternatives to classic antibiotics and in view of current limitations in the efficacy of antimicrobial-coated or loaded biomaterials, this work is focused on the development of a new glass-ceramic with antibacterial performance together with safe biocompatibility. This bactericidal glass-ceramic composed of combeite and nepheline crystals in a residual glassy matrix has been obtained using an antimicrobial soda-lime glass as a precursor. Its inhibitory effects on bacterial growth and biofilm formation were proved against five biofilm-producing reference strains. The biocompatibility tests by using mesenchymal stem cells derived from human bone indicate an excellent biocompatibility.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aluminum Compounds / chemistry
  • Anti-Bacterial Agents / chemistry
  • Anti-Bacterial Agents / pharmacology*
  • Apoptosis / drug effects
  • Biofilms / drug effects
  • Biofilms / growth & development
  • Calcium Compounds / chemistry
  • Caspase 3 / metabolism
  • Cell Adhesion / drug effects
  • Cells, Cultured
  • Ceramics / chemistry
  • Ceramics / pharmacology*
  • Coated Materials, Biocompatible / chemistry
  • Coated Materials, Biocompatible / pharmacology*
  • Enzyme Activation / drug effects
  • Escherichia coli / drug effects
  • Escherichia coli / physiology
  • Humans
  • Mesenchymal Stem Cells / drug effects
  • Mesenchymal Stem Cells / enzymology
  • Microbial Viability / drug effects*
  • Microscopy, Electron, Scanning
  • Microscopy, Electron, Transmission
  • Oxides / chemistry
  • Silicates / chemistry
  • Sodium Compounds / chemistry
  • Sodium Hydroxide / chemistry
  • Surface Properties
  • Thermography
  • Time Factors
  • X-Ray Diffraction

Substances

  • Aluminum Compounds
  • Anti-Bacterial Agents
  • Calcium Compounds
  • Coated Materials, Biocompatible
  • Oxides
  • Silicates
  • Sodium Compounds
  • nepheline
  • soda lime
  • Sodium Hydroxide
  • Glass ceramics
  • Caspase 3