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EDTA assisted synthesis of HA nanoparticles and Cobalt-HA nanocomposites

  • Sri Devi P Assistant professor, P.G. Department of Physics, Vellalar College for Women, Erode -12.
  • Sahana L II-M.Sc., Physics, Vellalar College for Women, Erode-12

Abstract

Nano biomaterials such as polymers, ceramics and metals are widely used in bone for regenerative therapies, bone grafts and tissue engineering as well as for temporary or permanent implants to stabilize fractures and replace joints. Bioceramics are specifically developed to replace parts of living system due to its biocompatibility. Hydroxyapatite (HA)Ca10(PO4)6(OH)2 used as a bone substitute material with stoichiometric composition i.e.,Ca/P(ratio) 1.67, which is similar to the mineral phase of the human bone. In this present work, (EDTA) ethylene diamine tetra acetic acid assisted as a capping agent for the synthesis of nano hydroxyapatite and cobalt substituted hydroxyapatite nanocomposites by sol gel method. The synthesized nano-HA powder and Co-HA nanocomposites are further characterized by using FTIR, XRD, SEM, EDAX and anti-bacterial activity. XRD analysis of HA Nanoparticles and Co-HA Nanocomposites, shows the strongest 2θ values at 32.1°,25.91°and at 32.1°, 10.1°, 16.6° respectively. SEM morphology predicts an elongated spherical morphology for HA Nanoparticles and Co-HA Nanocomposites. The elemental composition was confirmed with EDAX analysis and the FTIR spectrum indicates the functional groups of the synthesized compounds. The antibacterial activity was analyzed for both the gram-positive and the gram-negative bacteria’s.

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