Synthesis of nanometer hydroxyapatite by sol-gel method / 中国医学科学院学报
Acta Academiae Medicinae Sinicae
; (6): 129-133, 2002.
Article
en Zh
| WPRIM
| ID: wpr-350061
Biblioteca responsable:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To synthesize nanometer hydroxyapatite (HAP) by sol-gel method from Ca (NO3)2.4H2O and PO (CH3O)3 with water and ethanol as solvents and to study the factors that can affect the formation of sol-gel, including the type of solvents, amount of solvents, pH value, as well as properties under the condition of low temperature combustion of dried gel.</p><p><b>METHODS</b>The viscosities of sol were determined on WU viscosimeter. TG-DTA was used to analyze the thermal procedure of dried gel by increasing temperature. Characterization of the dried gel and powder after combustion were evaluated by X-ray diffraction and infrared spectrum. The morphology of the powder was observed by transmission electron microscopy.</p><p><b>RESULTS</b>Stable and homogeneous gel could be obtained at appropriate pH value when ethylene glycol was added into solvent. The dried gel had the feature of low temperature combustion. HAP powder with particle size of 50 nm was directly prepared.</p><p><b>CONCLUSION</b>Nanometer HAP powder with uniform particle size can be synthesized by sol-gel method.</p>
Texto completo:
1
Índice:
WPRIM
Asunto principal:
Tamaño de la Partícula
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Solventes
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Materiales Biocompatibles
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Durapatita
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Nanotecnología
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Geles
Idioma:
Zh
Revista:
Acta Academiae Medicinae Sinicae
Año:
2002
Tipo del documento:
Article