Optimization of silver-containing bioglass nanoparticles envisaging biomedical applications

Area of Science:

• Biomaterials Science
• Nanotechnology
• Materials Chemistry

Background:

• Bioglass nanoparticles (BGs) possess crucial osteoconductive, osteoinductive, angiogenic, and bactericidal properties for biomedical applications.
• Silver-containing bioglass nanoparticles (AgBGs) offer combined benefits of bioglass and silver for enhanced therapeutic effects.
• Systematic investigation of thermal treatment effects on AgBGs properties is lacking.

Purpose of the Study:

• To synthesize novel silver bioglass nanoparticles (AgBGs) using a sol-gel method.
• To systematically investigate the impact of various thermal treatments on the properties of AgBGs.
• To evaluate the bioactivity and antibacterial efficacy of the synthesized AgBGs.

Main Methods:

• Sol-gel synthesis of AgBGs with varying thermal treatments.
• Characterization using FT-IR, XRD, S-TEM, SEM-EDS, and Zeta potential analysis.
• In vitro bioactivity and microbiological tests for efficacy assessment.

Main Results:

• FT-IR and XRD confirmed the formation of characteristic bioglass and apatite-like phases.
• S-TEM analysis revealed dense nanoparticles with diameters <200 nm.
• SEM and Zeta potential provided insights into surface morphology and suspension stability.
• In vitro tests confirmed significant bioactivity and potent bactericidal effects.

Conclusions:

• Thermal treatment significantly influences the properties of AgBGs.
• Synthesized AgBGs demonstrate excellent bioactive and antibacterial potential.
• These AgBGs are promising candidates for orthopedic and dental applications, adaptable to 2D/3D structures.