A comparative study of the polarized biphasic calcium phosphate with silver nanoparticle-doped biphasic calcium phosphate in osteoblast cell development and antibacterial efficacy
摘要
Implant devices are prone to a substantial risk of infection, which can result in serious health issues with an increased number of fatalities sometimes. Numerous studies have demonstrated that calcium phosphate-based materials exhibit enhanced bone integration when subjected to electrical polarization through an external electric field prior to implantation The present work focuses on examining the impact of electrical polarization on a biphasic calcium phosphate consisting of 40% hydroxyapatite and 60% β-tricalcium phosphate. To evaluate the osteogenicity and anti-bacterial efficacy, two types of specimens such as (i) that was not subjected to poling but were doped with silver nanoparticles, and (ii) that underwent poling without doping. Comprehensive examinations utilizing X-ray diffraction and scanning electron microscopy were used to assess the crystallinity and purity of the phase and to observe the cell morphology. The Thermally Stimulated Depolarization Current measurement of polarised biphasic calcium phosphate demonstrated the highest current density of 4.06µC/cm2, and it showed significant hydrophilicity with low contact angles. The silver nanoparticle-doped biphasic calcium phosphate showed improved bacterial viability, although it exhibited cytotoxicity effects. In contrast, the cell viability of the specimens demonstrated that polarised biphasic calcium phosphate has the potential to reduce bacteria and promote the development and survival of osteoblast cells. Hence, the present work indicates that polarised biphasic calcium phosphate may be a superior choice in comparison to silver nanoparticle-doped biphasic calcium phosphate.