Fig. 1.
TEM images of the two series of MBGs enriched with 0, 2.5 and 5% of CuO synthetized by using HNO3/nitrate or HCl/chloride. Highlighted with striped circles the metallic copper nanoparticles and with dotted circles those of calcium/copper phosphate. Each image includes in the up right corner their EDS espectrum.