Synthesis and Characterization of Silver Substituted Hydroxyapatite Nanopowders |
Paper ID : 1362-UFGNSM-FULL (R1 |
Authors: |
Abstract: |
Hydroxyapatite bioceramics are utilized extensively as implant materials, due to their excellent biocompatibility. However, the bacterial infection after implant placement is still a major concern. One common and accepted strategy to prevent infection is to deliver an antibacterial agent such as silver at the site of implantation. In this study, the silver substituted hydroxyapatite nanopowders were synthesized by chemical co-precipitation route. These powders were characterized by Scanning electron microscopy (SEM), Dynamic light scattering (DLS), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The results showed that the size of powders were in the range of 70-100 nm. In addition the results indicated that an increase in silver content leads to a decrease in the size and crystallinity of the synthesized powders. The hydroxyapatite phase was found to be stable up to 900¬0C in pure hydroxyapatite whereas in silver substituted hydroxyapatite samples the stability was lowered to 7000C. The details on the processing conditions as well the characterization results will be presented in the conference. |
Keywords: |
Hydroxyapatite, Silver, Nanopowder, Co-precipitation, Stability |
Status : Paper Accepted (Poster Presentation) |