RESUMO
The Raman spectra of porous beta-TCP(beta-tricalcium phosphate)bioceramics implanted into rabbits femur the boundary and rabbit femur were studied using Raman spectroscopy(excited with 514.5nm and 623.8nm laser)and near-infrared FT-Raman spectroscopy. The Raman characteristic frequencies were assigned. The advantages and disadvantages of visible and near IR excitation are described. The Raman characteristic frequencies of calcium phosphate collagen protein and lipid(or phospholipid)were shown in the Raman spectra. These results demonstrated that besides calcium phosphate collagen protein and lipids also existed in the implants and the boundary forming components of organic bone tissues. Results indicated that the beta-TCP bioceramic when implanted into rabbit femur was partly dissolved and degraded the new bone tissues were formed on the surface and in pores of implanted bioceramics.