Green synthesis of magnesium ion incorporated nanocrystalline hydroxyapatite and their mechanical, dielectric and photoluminescence properties. (July 2015)

• Record Type: Journal Article
• Authors: Arul, K. Thanigai; Kolanthai, Elayaraja; Manikandan, E.; Bhalerao, G.M.; Chandra, V. Sarath; Ramya, J. Ramana; Mudali, U. Kamachi; Nair, K.G.M.; Kalkura, S.Narayana
• Is Part Of: Materials research bulletin. Volume 67(2015:Jul.)
• Page Start: 55
• Page End: 62
• Publication Date: 2015-07
• Subjects: A. Ceramics -- B. Mechanical properties -- B. Luminescence -- C. Electron microscopy -- D. Dielectrics; Materials -- Periodicals; Crystal growth -- Periodicals; Matériaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Crystal growth; Materials; Periodicals; 620.11
• DOI: 10.1016/j.materresbull.2015.02.054
• Languages: English
• ISSNs: 0025-5408

Abstract

Graphical abstract: 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-Ca10 (PO4 )6 (OH)2, 35 nm) and magnesium (Mg 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 2+ ion incorporation in HAp. The Mg 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 2+ ion incorporation. The permittivity, ac conductivity, PL, wettability and in vitro bioactivity were enhanced on Mg 2+ ion incorporation. These properties enable them to be a promising candidate for wound healing, bone replacement applications and also as a biosensor.