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Title: Green synthesis of magnesium ion incorporated nanocrystalline hydroxyapatite and their mechanical, dielectric and photoluminescence properties

Highlights: • Rapid technique to synthesize nanorods of magnesium ion incorporated hydroxyapatite. • Enhanced electrical and mechanical properties. • Improved photoluminescence and wettability on magnesium incorporation. • Increased in vitro bioactivity. - Abstract: Nanocrystalline hydroxyapatite (HAp-Ca{sub 10}(PO{sub 4}){sub 6}(OH){sub 2,} 35 nm) and magnesium (Mg{sup 2+}) ion incorporated HAp were synthesized by microwave technique. XRD (X-ray diffraction), FTIR (Fourier transform infrared spectroscopy), FE-HRTEM (Field emission high resolution transmission electron microscopy), DLS (dynamic light scattering), EDXRF (energy dispersive X-ray fluorescence spectrometry), microhardness, permittivity and alternating current (ac) conductivity, besides the PL (photoluminescence), wettability and in vitro bioactivity of the samples were analysed. EDXRF revealed the Mg{sup 2+} ion incorporation in HAp. The Mg{sup 2+} ion incorporation did not alter the phase but drastically reduced the crystallite size and particle size respectively by 48% and 32%. There was enhanced microhardness (24%) at low level (<13%) and decreased zeta potential of Mg{sup 2+} ion incorporation. The permittivity, ac conductivity, PL, wettability and in vitro bioactivity were enhanced on Mg{sup 2+} ion incorporation. These properties enable them to be a promising candidate for wound healing, bone replacement applications and also as a biosensor.
Authors:
;  [1] ;  [2] ;  [3] ; ;  [1] ;  [4] ;  [5] ;  [1]
  1. Crystal Growth Centre, Anna University, Chennai 600 025 (India)
  2. Nanosciences African Network (NANO-AFNET), iThemba LABS-National Research Foundation (NRF), Materials Research Department, Cape Town, South Africa. (South Africa)
  3. University Grants Commission – Department of Atomic Energy, Consortium for Scientific Research, Kalpakkam 603 104 (India)
  4. Metallurgy and Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102 (India)
  5. Accelerator Material Science Section, Material Science Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102 (India)
Publication Date:
OSTI Identifier:
22475813
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 67; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; APATITES; CERAMICS; CRYSTALS; DIELECTRIC MATERIALS; FLUORESCENCE SPECTROSCOPY; FOURIER TRANSFORM SPECTROMETERS; MAGNESIUM; MAGNESIUM IONS; MICROHARDNESS; NANOSTRUCTURES; PERMITTIVITY; PHOTOLUMINESCENCE; TRANSMISSION ELECTRON MICROSCOPY; WETTABILITY; X-RAY DIFFRACTION; X-RAY FLUORESCENCE ANALYSIS