Influence of needle-like morphology on the bioactivity of nanocrystalline wollastonite – an in vitro study

R Lakshmi, S Sasikumar Materials Chemistry Division, School of Advanced Sciences, VIT University, Vellore, Tamil Nadu, India Abstract: In the past 2 decades, wollastonite has been studied thoroughly for its application as a bone implant material due to its biocompatibility, high mechanical strengt...

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Autores principales: Lakshmi R, Sasikumar S
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Publicado: Dove Medical Press 2015
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spelling oai:doaj.org-article:406253cc773e4102b65bc91bb18117f22021-12-02T02:51:10ZInfluence of needle-like morphology on the bioactivity of nanocrystalline wollastonite – an in vitro study1178-2013https://doaj.org/article/406253cc773e4102b65bc91bb18117f22015-10-01T00:00:00Zhttps://www.dovepress.com/influence-of-needle-like-morphology-on-the-bioactivity-of-nanocrystall-peer-reviewed-article-IJNhttps://doaj.org/toc/1178-2013R Lakshmi, S Sasikumar Materials Chemistry Division, School of Advanced Sciences, VIT University, Vellore, Tamil Nadu, India Abstract: In the past 2 decades, wollastonite has been studied thoroughly for its application as a bone implant material due to its biocompatibility, high mechanical strength, and excellent bioactivity when compared to calcium phosphates bioceramics. Wollastonite was prepared through the low-temperature sol-gel combustion method using urea as the fuel, nitrate ions and nitric acid as the oxidizer. Calcium nitrate and tetraethyl orthosilicate were taken as the source of calcium and silica. The synthesized wollastonite were characterized by Fourier transform infrared spectroscopy for the identification of characteristic functional group and powder X-ray diffraction for the phase identification. Employing urea as a fuel resulted in needle-like morphology of the particles, which was confirmed by scanning electron microscopy and transmission electron microscopy. It was observed that the needle-like morphology enhances the mechanical properties such as elasticity and compressive strength and also increases the surface area of the material, which could help in a rapid deposition of hydroxyapatite layer. These properties of wollastonite warrant its application as a new artificial bone material in the field of hard tissue engineering. Keywords: sol-gel combustion synthesis, bioceramics, hydroxyapatite, compressive strength, morphologyLakshmi RSasikumar SDove Medical PressarticleMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol 2015, Iss Supplement 1 Challenges in biomaterials research, Pp 129-136 (2015)
institution DOAJ
collection DOAJ
language EN
topic Medicine (General)
R5-920
spellingShingle Medicine (General)
R5-920
Lakshmi R
Sasikumar S
Influence of needle-like morphology on the bioactivity of nanocrystalline wollastonite – an in vitro study
description R Lakshmi, S Sasikumar Materials Chemistry Division, School of Advanced Sciences, VIT University, Vellore, Tamil Nadu, India Abstract: In the past 2 decades, wollastonite has been studied thoroughly for its application as a bone implant material due to its biocompatibility, high mechanical strength, and excellent bioactivity when compared to calcium phosphates bioceramics. Wollastonite was prepared through the low-temperature sol-gel combustion method using urea as the fuel, nitrate ions and nitric acid as the oxidizer. Calcium nitrate and tetraethyl orthosilicate were taken as the source of calcium and silica. The synthesized wollastonite were characterized by Fourier transform infrared spectroscopy for the identification of characteristic functional group and powder X-ray diffraction for the phase identification. Employing urea as a fuel resulted in needle-like morphology of the particles, which was confirmed by scanning electron microscopy and transmission electron microscopy. It was observed that the needle-like morphology enhances the mechanical properties such as elasticity and compressive strength and also increases the surface area of the material, which could help in a rapid deposition of hydroxyapatite layer. These properties of wollastonite warrant its application as a new artificial bone material in the field of hard tissue engineering. Keywords: sol-gel combustion synthesis, bioceramics, hydroxyapatite, compressive strength, morphology
format article
author Lakshmi R
Sasikumar S
author_facet Lakshmi R
Sasikumar S
author_sort Lakshmi R
title Influence of needle-like morphology on the bioactivity of nanocrystalline wollastonite – an in vitro study
title_short Influence of needle-like morphology on the bioactivity of nanocrystalline wollastonite – an in vitro study
title_full Influence of needle-like morphology on the bioactivity of nanocrystalline wollastonite – an in vitro study
title_fullStr Influence of needle-like morphology on the bioactivity of nanocrystalline wollastonite – an in vitro study
title_full_unstemmed Influence of needle-like morphology on the bioactivity of nanocrystalline wollastonite – an in vitro study
title_sort influence of needle-like morphology on the bioactivity of nanocrystalline wollastonite – an in vitro study
publisher Dove Medical Press
publishDate 2015
url https://doaj.org/article/406253cc773e4102b65bc91bb18117f2
work_keys_str_mv AT lakshmir influenceofneedlelikemorphologyonthebioactivityofnanocrystallinewollastonitendashaninvitrostudy
AT sasikumars influenceofneedlelikemorphologyonthebioactivityofnanocrystallinewollastonitendashaninvitrostudy
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