Self-assembled right handed helical ribbons of the bone mineral hydroxyapatite
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Date
2009
Journal Title
Journal ISSN
Volume Title
Publisher
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
Abstract
A 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.
Description
Keywords
Engineering; Materials Science
Citation
20 ,;131-136