Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior
Strontium doped hydroxyapatite (Sr-doped HA) nanopowder has been synthesized using a sol-gel method. The concentration of strontium was varied at 2, 5, 10 and 15 mol%. The as synthesized powders were calcined at temperatures of 500 -900ºC. The calcined white Sr-doped HA powders were characterized us...
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| Format: | Article |
| Language: | English |
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Society for Biomaterials and Artificial Organs - India
2009
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| Online Access: | http://irep.iium.edu.my/11645/1/taat09i2p105.pdf |
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| author | C. M., Mardziah Iis, Sopyan Ramesh, Singh |
| author_facet | C. M., Mardziah Iis, Sopyan Ramesh, Singh |
| author_sort | C. M., Mardziah |
| collection | IIUM |
| description | Strontium doped hydroxyapatite (Sr-doped HA) nanopowder has been synthesized using a sol-gel method. The concentration of strontium was varied at 2, 5, 10 and 15 mol%. The as synthesized powders were calcined at temperatures of 500 -900ºC. The calcined white Sr-doped HA powders were characterized using differential and thermogravimetric analysis (TG/DTA), field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Morphological evaluation by FESEM measurement shows that the particles of the Sr-doped HA agglomerates are globular in shape with an
average size of 1-2 mm in diameter while the primary particles have a diameter of 30-150 nm in average. The
calcined powders contained hydroxyapatite phase only for all doping concentration except for the smallest doping concentration, 2 mol%, where â-TCP appeared as the secondary phase. This indicates that the substitution of Sr atoms for Ca atoms have stabilized the HA phase, leading to the inhibition of the appearance of â-TCP phase upon high temperature calcination. Even, for 2 mol% Sr-doped HA, the appearance of â-TCP peak only started to appear at a temperature as high as of 900ˆC, compared to non- Sr doping HA which appeared at a temperature below 800ºC. © Society for Biomaterials and Artificial Organs (India), 20090119-37 |
| first_indexed | 2024-03-05T22:45:03Z |
| format | Article |
| id | oai:generic.eprints.org:11645 |
| institution | International Islamic University Malaysia |
| language | English |
| last_indexed | 2024-03-05T22:45:03Z |
| publishDate | 2009 |
| publisher | Society for Biomaterials and Artificial Organs - India |
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| spelling | oai:generic.eprints.org:116452012-01-24T08:43:06Z http://irep.iium.edu.my/11645/ Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior C. M., Mardziah Iis, Sopyan Ramesh, Singh TS Manufactures Strontium doped hydroxyapatite (Sr-doped HA) nanopowder has been synthesized using a sol-gel method. The concentration of strontium was varied at 2, 5, 10 and 15 mol%. The as synthesized powders were calcined at temperatures of 500 -900ºC. The calcined white Sr-doped HA powders were characterized using differential and thermogravimetric analysis (TG/DTA), field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Morphological evaluation by FESEM measurement shows that the particles of the Sr-doped HA agglomerates are globular in shape with an average size of 1-2 mm in diameter while the primary particles have a diameter of 30-150 nm in average. The calcined powders contained hydroxyapatite phase only for all doping concentration except for the smallest doping concentration, 2 mol%, where â-TCP appeared as the secondary phase. This indicates that the substitution of Sr atoms for Ca atoms have stabilized the HA phase, leading to the inhibition of the appearance of â-TCP phase upon high temperature calcination. Even, for 2 mol% Sr-doped HA, the appearance of â-TCP peak only started to appear at a temperature as high as of 900ˆC, compared to non- Sr doping HA which appeared at a temperature below 800ºC. © Society for Biomaterials and Artificial Organs (India), 20090119-37 Society for Biomaterials and Artificial Organs - India 2009 Article NonPeerReviewed application/pdf en http://irep.iium.edu.my/11645/1/taat09i2p105.pdf C. M., Mardziah and Iis, Sopyan and Ramesh, Singh (2009) Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior. Trends in Biomaterials and Artificial Organs, 23 (2). pp. 105-113. ISSN 0971-1198 http://www.sbao1i.0or5g |
| spellingShingle | TS Manufactures C. M., Mardziah Iis, Sopyan Ramesh, Singh Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior |
| title | Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior |
| title_full | Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior |
| title_fullStr | Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior |
| title_full_unstemmed | Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior |
| title_short | Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior |
| title_sort | strontium doped hydroxyapatite nanopowder via sol gel method effect of strontium concentration and calcination temperature on phase behavior |
| topic | TS Manufactures |
| url | http://irep.iium.edu.my/11645/1/taat09i2p105.pdf |
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