Suganthi, RVGirija, EKKalkura, SNVarma, HKRajaram, A2017-03-102017-03-10200920 ,;131-13610.1007/s10856-008-3495-1https://dspace.sctimst.ac.in/handle/123456789/10412A self-assembled right handed helical ribbon of bone mineral, hydroxyapatite (HAp) was crystallized in sodium meta silicate gel matrix at 27A degrees C and the physiological pH (7.4). At temperatures 37 and 47A degrees C, helical structures were followed by many Liesegang rings. The samples were characterized by FT-IR, XRD, SEM, ICP-OES and TG-DTA techniques. The helical ribbon consisted of platy Ca-deficient apatite crystals of size 2.8 mu m. Liesegang ring had a continuous network of fibers with interconnected pores. The samples exhibited bioactivity when soaked in SBF.Engineering; Materials Science