Figure 1
From: Effect of germanium oxide on the structural aspects and bioactivity of bioactive silicate glass

Optimized structures of (a) P4O10, (b) P4O10 doped with Si3O6, (c) P4O10–Si3O6 doped with CaO and (d) P4O10–Si3O6–CaO doped with GeO2.
From: Effect of germanium oxide on the structural aspects and bioactivity of bioactive silicate glass
Optimized structures of (a) P4O10, (b) P4O10 doped with Si3O6, (c) P4O10–Si3O6 doped with CaO and (d) P4O10–Si3O6–CaO doped with GeO2.