Copper-containing glass polyalkenoate cements based on SiO2–ZnO–CaO–SrO–P2O5 glasses: glass characterization, physical and antibacterial properties

A series of copper (Cu)-containing glasses were synthesized and incorporated into a SiO 2 –ZnO–CaO–SrO–P 2 O 5 -based glass system. Additions of 6 and 12 mol% CuO retained the amorphous character, and glasses were processed to possess similar particle sizes and surface areas. Glass characterization using X-ray photoelectron spectroscopy and magic angle spinning nuclear magnetic resonance determined that the addition of 12 mol% CuO increased the fraction of Q 4 -speciation and the concentration of bridging oxygens. Each glass presented solubility profiles for the release of Si 4+ (18–31 mg/L), Ca 2+ (13–16 mg/L), Zn 2+ (