Investigation into the role of NaOH and calcium ions in the synthesis of calcium phosphate nanoshells
TLDR
In this paper, negatively charged liposomes (1,2-dioleoyl-sn-glycero-3-phosphate sodium salt) were used as a template by base titration synthesis at various concentrations of NaOH and calcium ions.Abstract:
Calcium phosphate (CaP) nanoshells were prepared using negatively charged liposomes (1,2-dioleoyl-sn-glycero-3-phosphate sodium salt (DOPA)) as a template by base titration synthesis at various concentrations of NaOH and calcium ions. The elemental composition, morphology, particle size, particle size distribution and zeta potential of the products were determined via various characterisation techniques, such as energy-dispersive X-ray spectrometry (EDX), transmission electron microscopy (TEM), dynamic light scattering (DLS), laser Doppler velocimetry (LDV) and Fourier transform infrared spectroscopy (FTIR). The best results showed that stable spherical CaP nanoshells with a mean particle size of 197.5 ± 5.8 nm and a zeta potential of -34.5 ± 0.6 mV were successfully formed when 0.100 M sodium hydroxide (NaOH) and 0.100 M calcium ions were used. Moreover, an optimal pH of 10.52 and a final Ca/P molar ratio of 0.97 were achieved under these conditions.read more
Citations
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References
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Hongquan Zhang,Brian W. Darvell +1 more
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Nanogel‐Templated Mineralization: Polymer‐Calcium Phosphate Hybrid Nanomaterials
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Role of base in the formation of silver nanoparticles synthesized using sodium acrylate as a dual reducing and encapsulating agent
TL;DR: NaOH is found to play an important role not only in creating specific intermediates in the reduction of Ag(+) to Ag(0), but also in accelerating the reduction and nucleation rates by enhancing the oxidation of sodium acrylate, thereby increasing the rate of formation of the Ag NPs.
Journal ArticleDOI
Influence of emulsion on crystal growth of hydroxyapatite
TL;DR: In this paper, the effect of an emulsion medium on the morphology and size of hydroxyapatite (HAp) nanoparticles was investigated, and the results indicated that a template effect of the emulsion can be utilized for controlling the size and habit of HAp nanoparticles.