Bioactivity studies of calcium magnesium silicate prepared from eggshell waste by sol–gel combustion synthesis

The present study focused on the synthesis of calcium magnesium silicate (akermanite, Ca2MgSi2O7) using eggshell biowaste (as calcium source), magnesium nitrate and tetraethyl orthosilicate (TEOS) as starting materials. Sol–gel combustion method was adopted to obtain calcium magnesium silicate. Citr...

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Main Authors: Rajan Choudhary, Sivasankar Koppala, Sasikumar Swamiappan
Format: Article
Language:English
Published: Taylor & Francis Group 2015-06-01
Series:Journal of Asian Ceramic Societies
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2187076415000032
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author Rajan Choudhary
Sivasankar Koppala
Sasikumar Swamiappan
author_facet Rajan Choudhary
Sivasankar Koppala
Sasikumar Swamiappan
author_sort Rajan Choudhary
collection DOAJ
description The present study focused on the synthesis of calcium magnesium silicate (akermanite, Ca2MgSi2O7) using eggshell biowaste (as calcium source), magnesium nitrate and tetraethyl orthosilicate (TEOS) as starting materials. Sol–gel combustion method was adopted to obtain calcium magnesium silicate. Citric acid was used as a fuel (reducing agent) and nitrate ions present in the metal nitrates acts as an oxidizing agent during combustion process. The characterization of synthesized calcium magnesium silicate was carried out by powder X-ray diffraction (XRD), Fourier transform infrared (FTIR) and scanning electron microscopy (SEM) techniques. Calcium magnesium silicate crystallite size was observed in nano regime which can effectively mimic natural bone apatite composition. In-vitro bioactivity was investigated by immersing calcium magnesium silicate pellet in simulated body fluid (SBF) for three weeks. Results show effective deposition of crystallized hydroxyapatite (HAP) layer on its surface and predicting its possibilities for applications in hard tissue regeneration.
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spelling doaj.art-7604bb3f981f4dbbbe3a08a56bbcbcef2022-12-21T21:30:22ZengTaylor & Francis GroupJournal of Asian Ceramic Societies2187-07642015-06-013217317710.1016/j.jascer.2015.01.002Bioactivity studies of calcium magnesium silicate prepared from eggshell waste by sol–gel combustion synthesisRajan ChoudharySivasankar KoppalaSasikumar SwamiappanThe present study focused on the synthesis of calcium magnesium silicate (akermanite, Ca2MgSi2O7) using eggshell biowaste (as calcium source), magnesium nitrate and tetraethyl orthosilicate (TEOS) as starting materials. Sol–gel combustion method was adopted to obtain calcium magnesium silicate. Citric acid was used as a fuel (reducing agent) and nitrate ions present in the metal nitrates acts as an oxidizing agent during combustion process. The characterization of synthesized calcium magnesium silicate was carried out by powder X-ray diffraction (XRD), Fourier transform infrared (FTIR) and scanning electron microscopy (SEM) techniques. Calcium magnesium silicate crystallite size was observed in nano regime which can effectively mimic natural bone apatite composition. In-vitro bioactivity was investigated by immersing calcium magnesium silicate pellet in simulated body fluid (SBF) for three weeks. Results show effective deposition of crystallized hydroxyapatite (HAP) layer on its surface and predicting its possibilities for applications in hard tissue regeneration.http://www.sciencedirect.com/science/article/pii/S2187076415000032AkermaniteEggshellBioactivityHydroxyapatiteNatural bone mimic
spellingShingle Rajan Choudhary
Sivasankar Koppala
Sasikumar Swamiappan
Bioactivity studies of calcium magnesium silicate prepared from eggshell waste by sol–gel combustion synthesis
Journal of Asian Ceramic Societies
Akermanite
Eggshell
Bioactivity
Hydroxyapatite
Natural bone mimic
title Bioactivity studies of calcium magnesium silicate prepared from eggshell waste by sol–gel combustion synthesis
title_full Bioactivity studies of calcium magnesium silicate prepared from eggshell waste by sol–gel combustion synthesis
title_fullStr Bioactivity studies of calcium magnesium silicate prepared from eggshell waste by sol–gel combustion synthesis
title_full_unstemmed Bioactivity studies of calcium magnesium silicate prepared from eggshell waste by sol–gel combustion synthesis
title_short Bioactivity studies of calcium magnesium silicate prepared from eggshell waste by sol–gel combustion synthesis
title_sort bioactivity studies of calcium magnesium silicate prepared from eggshell waste by sol gel combustion synthesis
topic Akermanite
Eggshell
Bioactivity
Hydroxyapatite
Natural bone mimic
url http://www.sciencedirect.com/science/article/pii/S2187076415000032
work_keys_str_mv AT rajanchoudhary bioactivitystudiesofcalciummagnesiumsilicatepreparedfromeggshellwastebysolgelcombustionsynthesis
AT sivasankarkoppala bioactivitystudiesofcalciummagnesiumsilicatepreparedfromeggshellwastebysolgelcombustionsynthesis
AT sasikumarswamiappan bioactivitystudiesofcalciummagnesiumsilicatepreparedfromeggshellwastebysolgelcombustionsynthesis