Kinetics of dissolution of calcium phosphate (Ca-P) bioceramics
Hydroxyapatite (HAp) and β-tricalcium phosphate (β-TCP) are widely used bioceramics for surgical or dental applications. This paper is dealing with dissolution kinetics of synthetically prepared β-TCP and four types of HAp granules. Two groups of HAp, treated at different temperatures, each of them...
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University of Novi Sad
2008-06-01
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Online Access: | http://www.tf.uns.ac.rs/publikacije/PAC/pdf/24%20PAC%2002.pdf |
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doaj-5dd9a0ab90074967895077dddf6aec622020-11-24T23:31:23ZengUniversity of Novi SadProcessing and Application of Ceramics1820-61312008-06-01215762Kinetics of dissolution of calcium phosphate (Ca-P) bioceramicsLukas BrazdaDana RohanovaAles HelebrantHydroxyapatite (HAp) and β-tricalcium phosphate (β-TCP) are widely used bioceramics for surgical or dental applications. This paper is dealing with dissolution kinetics of synthetically prepared β-TCP and four types of HAp granules. Two groups of HAp, treated at different temperatures, each of them with two different granule sizes, were tested. Three corrosive solutions with different pH and simulated body fluid (SBF) were used for immersing of the samples. Changes in concentrations of calcium and phosphate ions, pH level and weight changes of the samples were observed. It was found that presence of TRIS buffer enhanced dissolution rate of the β-TCP approximately two times. When exposed to SBF solution, calcium phosphate (most probably hydroxyapatite) precipitation predominates over β-TCP dissolution. Results from HAp samples dissolution showed some unexpected findings. Neither heat treatment nor HAp particle size made any major differences in dissolution rate of the same mass of each HAp sample.http://www.tf.uns.ac.rs/publikacije/PAC/pdf/24%20PAC%2002.pdfCalcium phosphateKineticsDissolution |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lukas Brazda Dana Rohanova Ales Helebrant |
spellingShingle |
Lukas Brazda Dana Rohanova Ales Helebrant Kinetics of dissolution of calcium phosphate (Ca-P) bioceramics Processing and Application of Ceramics Calcium phosphate Kinetics Dissolution |
author_facet |
Lukas Brazda Dana Rohanova Ales Helebrant |
author_sort |
Lukas Brazda |
title |
Kinetics of dissolution of calcium phosphate (Ca-P) bioceramics |
title_short |
Kinetics of dissolution of calcium phosphate (Ca-P) bioceramics |
title_full |
Kinetics of dissolution of calcium phosphate (Ca-P) bioceramics |
title_fullStr |
Kinetics of dissolution of calcium phosphate (Ca-P) bioceramics |
title_full_unstemmed |
Kinetics of dissolution of calcium phosphate (Ca-P) bioceramics |
title_sort |
kinetics of dissolution of calcium phosphate (ca-p) bioceramics |
publisher |
University of Novi Sad |
series |
Processing and Application of Ceramics |
issn |
1820-6131 |
publishDate |
2008-06-01 |
description |
Hydroxyapatite (HAp) and β-tricalcium phosphate (β-TCP) are widely used bioceramics for surgical or dental applications. This paper is dealing with dissolution kinetics of synthetically prepared β-TCP and four types of HAp granules. Two groups of HAp, treated at different temperatures, each of them with two different granule sizes, were tested. Three corrosive solutions with different pH and simulated body fluid (SBF) were used for immersing of the samples. Changes in concentrations of calcium and phosphate ions, pH level and weight changes of the samples were observed. It was found that presence of TRIS buffer enhanced dissolution rate of the β-TCP approximately two times. When exposed to SBF solution, calcium phosphate (most probably hydroxyapatite) precipitation predominates over β-TCP dissolution. Results from HAp samples dissolution showed some unexpected findings. Neither heat treatment nor HAp particle size made any major differences in dissolution rate of the same mass of each HAp sample. |
topic |
Calcium phosphate Kinetics Dissolution |
url |
http://www.tf.uns.ac.rs/publikacije/PAC/pdf/24%20PAC%2002.pdf |
work_keys_str_mv |
AT lukasbrazda kineticsofdissolutionofcalciumphosphatecapbioceramics AT danarohanova kineticsofdissolutionofcalciumphosphatecapbioceramics AT aleshelebrant kineticsofdissolutionofcalciumphosphatecapbioceramics |
_version_ |
1725538253953564672 |