Density–structure correlations in Na2O–CaO–P2O5–SiO2 bioactive glasses

A New Quantitative Method to Predict the Bioactive Behavior of Silicate Glasses

“…Concerning the Doweidar correlative distribution of Q n units, based on knowledge of the effective composition (Table ) and the concentration of modifiers (M) that are not committed with the P–O–M links, i.e. network modifiers bonded to SiO 2 (Table ), and which are therefore available to participate in the distortion of the glass network, the distribution of the chemical species present in the glass matrix can be identified.…”

Fluoride-containing bioactive glass-ceramics

“…As we were not able to obtain the density of glass F0 in the present study (owing to crystallisation during the casting process), we used the experimental density of a glass of the same composition, ICSW9, published by O'Donnell et al [19]. Unlike all experimental densities obtained in the present study, this value did not agree with the theoretical one [25], and is also considerably higher than the density of the low fluoride content glasses (open circle in Fig. 5a and b).…”

Study on Europium-Doped Hydroxyapatite Nanoparticles by Fourier Transform Infrared Spectroscopy and Their Antimicrobial Properties

“…Compared to other rare-earth elements, trivalent Europium Eu 3+ ions have a simple electronic energy level scheme and hypersensitive transitions. The Eu 3+ -doped calcium Journal of Spectroscopy apatites represent a good biological probe candidate due to their low toxicity and stable luminescence over time, and it has been proven that a small amount of europium in the bioactivity behaviour has no harmful effects [37][38][39][40][41]. The ionic radius similarity between Ca 2+ and Eu 3+ in the apatite lattice makes them a good host for Eu 3+ doping [4].…”