Influence of sodium on the properties of sol-gel derived hydroxyapatite powder and porous scaffolds
This study investigates the properties of sol-gel derived sodium (Na)-doped hydroxyapatite (HA) powder. Different amounts of Na (1, 5, 10 and 15 mol%) were prepared and the sintered bodies were characterized to determine the current phases, microstructural evolution and mechanical properties. X-ra...
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iium-595032017-11-21T05:54:06Z http://irep.iium.edu.my/59503/ Influence of sodium on the properties of sol-gel derived hydroxyapatite powder and porous scaffolds Sopyan, Lis Pusparini, Erlani Subramaniam, Ramesh T. Tan, Chou Yong Ching, Yernchee Wong, Yinhow Zainal Abidin, Nor Ishida Chandran, Hari Ramesh, S. Bang, Lethi TA164 Bioengineering TA401 Materials of engineering and construction This study investigates the properties of sol-gel derived sodium (Na)-doped hydroxyapatite (HA) powder. Different amounts of Na (1, 5, 10 and 15 mol%) were prepared and the sintered bodies were characterized to determine the current phases, microstructural evolution and mechanical properties. X-ray diffraction analysis reveals that a phase pure HA of crystallite sizes, which varied from 35 nm to 65 nm, was obtained in the synthesized powder after calcining from 500 °C to 1000 °C. Scanning electron microscopy examination shows evidence of larger particle sizes, particularly in samples that contain higher amounts of Na concentration. The resultant powders were subsequently used to prepare porous NA-doped HA bodies through a polymeric sponge method. The addition of 5% Na resulted in a porous body with 27% porosity and was beneficial in enhancing the compressive strength of HA 17-fold compared with undoped HA. The prepared scaffold also shows suitable pore interconnectivity with pore sizes that vary between 100 and 300 μm which is suitable for use as porous bone substitutes. 2017 Article PeerReviewed application/pdf en http://irep.iium.edu.my/59503/1/Ceram%20Inter-43-12263%20%282017%29.pdf application/pdf en http://irep.iium.edu.my/59503/7/59503_Influence%20of%20sodium%20on%20the%20properties%20_scopus.pdf Sopyan, Lis and Pusparini, Erlani and Subramaniam, Ramesh T. and Tan, Chou Yong and Ching, Yernchee and Wong, Yinhow and Zainal Abidin, Nor Ishida and Chandran, Hari and Ramesh, S. and Bang, Lethi (2017) Influence of sodium on the properties of sol-gel derived hydroxyapatite powder and porous scaffolds. Ceramics International, 43 (15). pp. 12263-12269. ISSN 0272-8842 http://www.sciencedirect.com/science/article/pii/S0272884217313044 10.1016/j.ceramint.2017.06.088 |
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TA164 Bioengineering TA401 Materials of engineering and construction Sopyan, Lis Pusparini, Erlani Subramaniam, Ramesh T. Tan, Chou Yong Ching, Yernchee Wong, Yinhow Zainal Abidin, Nor Ishida Chandran, Hari Ramesh, S. Bang, Lethi Influence of sodium on the properties of sol-gel derived hydroxyapatite powder and porous scaffolds |
description |
This study investigates the properties of sol-gel derived sodium (Na)-doped hydroxyapatite (HA) powder.
Different amounts of Na (1, 5, 10 and 15 mol%) were prepared and the sintered bodies were characterized to
determine the current phases, microstructural evolution and mechanical properties. X-ray diffraction analysis
reveals that a phase pure HA of crystallite sizes, which varied from 35 nm to 65 nm, was obtained in the
synthesized powder after calcining from 500 °C to 1000 °C. Scanning electron microscopy examination shows
evidence of larger particle sizes, particularly in samples that contain higher amounts of Na concentration. The
resultant powders were subsequently used to prepare porous NA-doped HA bodies through a polymeric sponge
method. The addition of 5% Na resulted in a porous body with 27% porosity and was beneficial in enhancing the
compressive strength of HA 17-fold compared with undoped HA. The prepared scaffold also shows suitable pore
interconnectivity with pore sizes that vary between 100 and 300 μm which is suitable for use as porous bone
substitutes. |
format |
Article |
author |
Sopyan, Lis Pusparini, Erlani Subramaniam, Ramesh T. Tan, Chou Yong Ching, Yernchee Wong, Yinhow Zainal Abidin, Nor Ishida Chandran, Hari Ramesh, S. Bang, Lethi |
author_facet |
Sopyan, Lis Pusparini, Erlani Subramaniam, Ramesh T. Tan, Chou Yong Ching, Yernchee Wong, Yinhow Zainal Abidin, Nor Ishida Chandran, Hari Ramesh, S. Bang, Lethi |
author_sort |
Sopyan, Lis |
title |
Influence of sodium on the properties of sol-gel derived hydroxyapatite powder and porous scaffolds |
title_short |
Influence of sodium on the properties of sol-gel derived hydroxyapatite powder and porous scaffolds |
title_full |
Influence of sodium on the properties of sol-gel derived hydroxyapatite powder and porous scaffolds |
title_fullStr |
Influence of sodium on the properties of sol-gel derived hydroxyapatite powder and porous scaffolds |
title_full_unstemmed |
Influence of sodium on the properties of sol-gel derived hydroxyapatite powder and porous scaffolds |
title_sort |
influence of sodium on the properties of sol-gel derived hydroxyapatite powder and porous scaffolds |
publishDate |
2017 |
url |
http://irep.iium.edu.my/59503/ http://irep.iium.edu.my/59503/ http://irep.iium.edu.my/59503/ http://irep.iium.edu.my/59503/1/Ceram%20Inter-43-12263%20%282017%29.pdf http://irep.iium.edu.my/59503/7/59503_Influence%20of%20sodium%20on%20the%20properties%20_scopus.pdf |
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2023-09-18T21:24:18Z |
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2023-09-18T21:24:18Z |
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