Figure 5. FTIR spectra of materials before and after BSA functionalisation in various solutions: (a) - β-TCP, 1 - β-TCP initial, 2 - β-TCP in SCS, 3 - β-TCPmod. in SCS, 4 - β-TCP in DPBS, 5 - β-TCPmod. in DPBS; (с) - OCP, 1- OCP initial, 2 - OCP in SCS, 3 - OCP in DPBS, (b) and (d) – detailing of FTIR-bands at 1350-1850 cm^-1.