Synthesis by Sol-Gel Technique and Antibacterial Activity of Bioactive Hybrid SiO2 Inorganic Matrix by Different Structures of Ferrous Citrate (Fe(II)C): Comparative Study

The aim of this work is to characterize and compare three different structures of Ferrous citrates (Fe(II)C), amorphous, semicrystalline, and crystalline incorporated into a SiO2 inorganic matrix by sol–gel technique. Fourier transform infrared spectroscopy (FTIR) confirms both the Fe(II)C presence in the silica matrix and the interactions among different components in the hybrid materials. Moreover, FTIR spectroscopy is used to evaluate the formation of hydroxyapatite layer, known as bioactivity test, of the hybrids soaked into simulated body fluid (SBF). Finally, the antibacterial properties of the hybrids are investigated