Dynamics of CTAB in hybrid CTAB-Hydroxyapatite System
Hydroxyapatite (HAp), Ca10(PO4)6(OH)2 is a form of bioceramics material. It is chemically similar to bones and hard tissues found in humans and biocompatible. HAp is widely used in medicine and dentistry as a material for metallic implant coatings and bone cavity fillings. Recently, synthesis of mesoporous HAp using cationic surfactant (e.g. cetyltrimethylammonium bromide or CTAB) as the template is achieved using a supramolecular templating technique. The micelles act as nucleating points for the growth of HAp crystals. During the thermal incubation stage, CTAB–HAp complexes are produced and they coalesce to form a stable three-dimensional rod-like structure. This composite provides an ideal system to study the confined micellar system and a great opportunity to understand the role of organic molecules and its internal dynamics in bio-mineralisation process. The aim of the proposed experiment is to carry out a systematic quasi-elastic neutron scattering study on CTAB-HAp material investigating the dynamics of CTAB monomers in confined geometry produced by organic matrix as a function of temperature and compare the results vis-a-vis CTAB micellar systems.
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MUKHOPADHYAY Ramaprosad; JOHNSON Mark Robert; MITRA Subhankur; ORECCHINI Andrea; SHARMA Veerendra Kumar and VERMA Gunjan. (2014). Dynamics of CTAB in hybrid CTAB-Hydroxyapatite System. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-12-346
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