Kiran, P.Ramakrishna, V.Shashikala, H.D.Udayashankar, N.K.2026-02-052017Applied Nanoscience (Switzerland), 2017, 7, 8, pp. 731-74521905509https://doi.org/10.1007/s13204-017-0616-5https://idr.nitk.ac.in/handle/123456789/25447Barium soda lime phosphosilicate [(58SiO<inf>2</inf>– (32-x)BaO–xCao–6Na<inf>2</inf> O–4P<inf>2</inf>O<inf>5</inf> (where x = 15, 20, 25 and 30 mol%)] samples were synthesised using conventional sol–gel method at 700 °C sintering temperature. Thermal, structural properties were studied using thermo gravimetric analysis and differential thermal analysis, X-ray diffraction, scanning electron microscopy, fourier transform infrared and Raman spectroscopy. Using Raman spectra non-bridging oxygen concentrations were estimated. The hydroxy-carbonated apatite (HCA) layer formation on samples was analysed for 7 days using simulated body fluid (SBF) soaked samples. The growth of HCA layers self-assembled on the sample surface was discussed as a function of NBO/BO ratio. Results indicated that the number of Ca2? ions released into SBF solution in dissolution process and weight loss of SB-treated samples vary with NBO/BO ratio. The changes in NBO/BO ratios were observed to be proportional to HCA forming ability of barium soda lime phosphosilicate glasses. © Springer. All rights reserved.ApatiteBody fluidsDifferential thermal analysisGelsGlassGravimetric analysisLimeScanning electron microscopySinteringSolsThermogravimetric analysisDissolution processFourier transform infra redsNBO/BONon-bridging oxygenPhosphosilicate glassSBF solutionSimulated body fluidsSintering temperaturesBarium compounds