In-vitro bioactivity, biocompatibility and dissolution studies of diopside prepared from biowaste by using sol–gel combustion method by Choudhary, R., Vecstaudza, J., Krishnamurithy, G., Raghavendran, Hanumanth Rao Balaji, Murali, M.R., Kamarul, Tunku, Swamiappan, S., Locs, J.