Effect of Temperature on Hydroxyl Carbonated Apatite from Ash Bagasse

Abstract

Silica–based bioactive material can promote the nucleation of hydroxyl carbonated apatite (HCA) which roles on bone mineralization processes. The sol–gel synthesis produces nanoparticle. The small particle increases the surface area of particle that is known has high bioactivity. Sintering temperature affect properties and characteristics of the glass. The aims of the research was to know the effect of sintering temperature on HCA formation of nano bioactive silica from ash bagasse. The study was a laboratory experimental with control group post–test only design. ilica derived from sugarcane bagasse was used as a source of silica to synthesize bioactive glass and sodium silicate as a precursor. Sintering temperatures are 1 000 C. Polysaccharide from seaweed was used as a binder to make plates from the bioactive glass. The plates were immersed in simulated body fluids (SBF) for 2 h, 12 h and 24 h. HCA formation was observed with Scanning Electron Microscope (SEM) and Forier Transform Infra–Red (FTIR). Two way anova and LSD test. The result of research shows that there were significantly different on HCA formation with variety of sintering temperature. Soaking time affects number and velocity of HCA formation. High sintering temperature cause increase HCA formation, but its formation is slower. The condition caused by crystal formation which produce bond more stable.