Abstract
Modified bioglasses were prepared by full replacement of SiO2 in Hench's patented bioglass by B2O3 together with samples containing successes additions of CuO (0.2 to 4%). The bioactivity behavior of the prepared borate glasses was analyzed by immersing the glasses in simulated body fluid (SBF) and measuring the appearance of hydroxyapatite (HA) through combined FTIR spectra, X-Ray diffraction and Scanning (SEM) techniques. After immersion, FTIR spectra reveal the appearance of the far IR split band with two peaks at 550-570 and 620-650 cm(-1) after immersion of the glasses in SBF solution. It is observed that the progressive increase of CuO, ingresses the intensity of this characteristic peaks which are due to the formation of calcium phosphate (hydroxyapatite) and this increase ceases after 1% CuO reaching to constancy or slight decrease. X-Ray diffraction analysis supported the FTIR results. Also, SEM images show the appearance of the modular texture known for hydroxyapatite.