A simple energy efficient sol-gel combustion production of strontium orthosilicate and its biomedical study

Abstract

Here we present a simple, effective, energy efficient method for the production of single phasic strontium orthosilicate (Sr2SiO4) powders at (1000 °C) low phase formation temperature using sol–gel combustion method. Detailed phase evaluation is investigated. The influence of different fuels on the synthesis of strontium orthosilicate also discussed. The prepared strontium orthosilicate powders were characterized using powder X-ray diffraction (XRD), Fourier transform infrared (FT-IR), Fourier transform Raman (FT-RAMAN), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) techniques. The strontium orthosilicate-polymer (chitin/chitosan) scaffold were prepared by solid state mixing. The strontium orthosilicate and strontium orthosilicate-polymer scaffold were found to have the ability to biomineralize as a bone substitute. The apatite formation ability was demonstrated by XRD studies after incubation up to 30 days. These preliminary in-vitro apatite formation abilities and hemocompatibility results show that strontium orthosilicate might possess properties that can serve as new biomedical material.

Keywords

• Strontium orthosilicate
• Sr2SiO4
• Combustion
• Sol-gel
• Fuel
• Scaffold