Biodegradation Behaviour of Bioactive Gallium Based Nanosilver Doped Alloy in Simulated Body Fluid

Résumé fourni par la source

Gallium is highly biocompatible, bioactive, and antibacterial, making it a promising candidate for implantable medical devices. However, it would require enhanced electrical conductivity to withstand higher voltage applications. A novel method was introduced to incorporate nanosilver as the doping material to address this issue because silver has the highest electrical conductivity and better diffusivity, with gallium being nanoscale. This chapter discusses the biodegradation behaviour of nanosilver-doped gallium alloy in Dulbecco’s Modified Eagle’s simulated body fluid medium mimicking blood plasma conditions at different incubation conditions. All samples regarding surface morphology, mass loss, and electrical conductivity were analyzed. The results revealed a 1:3 gallium to nanosilver ratio as the effective concentration ratio and 5 ℃ /min as the effective solidification rate among all fluid conditions, demonstrating stable degradation behaviours. It also revealed better electrical conductivity and steady surface morphology behaviour. Complex compound formation was also observed due to silver composition, resulting in pigmentation on the surface. It is expected such findings would bring light to enhancing the electrical conductivity of medical devices with metal alloys that would not be harmful to the human body and vulnerable to corrosive environments.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.