Silver release from hydroxyapatite self-assembling calcium–phosphate glasses

Structural analysis of zirconia-doped calcium phosphate glasses

“…The variations in pH values ensure the exchange of ions between the glass and SBF solution. A similar behaviour in pH value has been observed in different phosphatebased glasses after immersion in SBF solution [13,16,53,54]. Thus, the exchange of ions is the only essential reaction during in vitro studies to ensure the formation of hydroxyapatite layer.…”

Antimicrobial activity of hemocompatible silver doped hydroxyapatite nanoparticles synthesized by modified sol–gel technique

“…It was observed that 3 % Ag-HAp exhibited maximum activity as compared to 1 and 5 % Ag-HAp for both the test organisms. Antimicrobial activity of Ag-HAp based compounds such as plasma sprayed silver containing HAp coatings on Ti plates (Chen et al 2008), magnetron co-sputtered silver containing HAp coatings (Chen et al 2006), Ag-nHAp/TiO 2 /PA66 scaffolds (Xia et al 2010), silver-hydroxyapatite/titania film on titanium plates (Mo et al 2008) and HAp self assembled calcium phosphate glasses (Simon et al 2008) has been attributed to the Ag ions released into the medium. It is well known that silver ions and silver based compounds can destroy cell membranes and cell walls of bacteria and affect their growth (Woo et al 2008;Furr et al 1994).…”

Preparation and characterization of chitosan-silver/hydroxyapatite composite coatings onTiO2 nanotube for biomedical applications

“…The amount of Ag ions slowly and continuously released from CSAgHAp into SBF solution for different periods is presented in Fig. 9, Ag ions were released during the 7 days of immersion and reach a steady-state after 7 days, which could be attributed to new apatite formation in SBF that hindered the release of Ag [27]. Antibacterial property of the prepared CSAgHAp composite was expected because of long-term sustainable release of Ag.…”