Particle Size Control in Sol-Gel Synthesis of Nano Hydroxyapatite

Lei Yang; Xiao Shan Ning; W.W. Jia; Ke Xin Chen; He Ping Zhou

doi:10.4028/www.scientific.net/AMR.11-12.231

Paper Titles

Difference of Properties between Yb³⁺-Doped Silicate and Phosphate Laser Glasses
p.213

Preparation of Red Long Afterglow Phosphorescent Material CaTiO₃: Pr³⁺
p.217

Preparation of Macroporous Glass-Ceramic Composites Containing β-TCP
p.223

Preparation of Bimodal Porous Biphasic Calcium Phosphate Ceramics and Their Dissolution Behavior in Simulated Body Fluid
p.227

Particle Size Control in Sol-Gel Synthesis of Nano Hydroxyapatite
p.231

Amorphous Calcium Silicate Coating on Metallic Titanium
p.235

Apatite-Coated Poly(lactic acid) Composites with Cell-Compatibility Prepared by a Biomimetic Method
p.239

PLLA/HA Electrospin Hybrid Nanofiber Scaffolds: Morphology, In Vitro Degradation and Cell Culture Potential
p.243

Porous Apatite Ceramics Derived from Woods
p.247

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 11-12Particle Size Control in Sol-Gel Synthesis of Nano...

Particle Size Control in Sol-Gel Synthesis of Nano Hydroxyapatite

Abstract:

Sol-gel method is one of the most potential techniques for mass-production of nano hydroxyapatite. In this paper, particle size control techniques, including dripping speed control, addition of several dispersants such as ammonium citrate, castor oil and silane coupling agent, as well as usage of insoluble and water soluble starch additives, were investigated. The particle size and microstructures of as synthesized hydroxyapatite were studied by X-ray diffraction, Scanning electron microscopy and dynamic light scattering. The results indicated that all the control techniques had considerable effects on decreasing the crystallite size, and the starch additives also exhibited obvious effect on preventing the agglomeration of nano crystallites during the synthesizing process.