Hydroxyapatite nanoparticles as stimulus-responsive particulate emulsifiers and building block for porous materials

Fujii, Syuji; Okada, Masahiro; Furuzono, Tsutomu

doi:10.1016/j.jcis.2007.06.071

Cited by 119 publications

(93 citation statements)

References 65 publications

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“…HAp nanoparticles have been tested as a particulate emulsifier [284]. Stable oil-in-water type emulsions were readily obtained using oils containing an ester group (e.g.…”

Section: Particulate Emulsifier (Pickering Emulsion Stabilizer)mentioning

confidence: 99%

Hydroxylapatite nanoparticles: fabrication methods and medical applications

Okada

Furuzono

2012

Science and Technology of Advanced Materials

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126

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Hydroxylapatite (or hydroxyapatite, HAp) exhibits excellent biocompatibility with various kinds of cells and tissues, making it an ideal candidate for tissue engineering, orthopedic and dental applications. Nanosized materials offer improved performances compared with conventional materials due to their large surface-to-volume ratios. This review summarizes existing knowledge and recent progress in fabrication methods of nanosized (or nanostructured) HAp particles, as well as their recent applications in medical and dental fields. In section 1, we provide a brief overview of HAp and nanoparticles. In section 2, fabrication methods of HAp nanoparticles are described based on the particle formation mechanisms. Recent applications of HAp nanoparticles are summarized in section 3. The future perspectives in this active research area are given in section 4.

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“…HAp nanoparticles have been tested as a particulate emulsifier [284]. Stable oil-in-water type emulsions were readily obtained using oils containing an ester group (e.g.…”

Section: Particulate Emulsifier (Pickering Emulsion Stabilizer)mentioning

confidence: 99%

Hydroxylapatite nanoparticles: fabrication methods and medical applications

Okada

Furuzono

2012

Science and Technology of Advanced Materials

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126

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“…Note that the HAp nanoparticles used for the adsorption tests in this study should be weakly flocculated 39) , and the drying of the nanoparticle dispersion generally induces the formation of severe aggregation that decreases the surface area of the nanoparticles 34,40) . Therefore, the nanoparticles for CPC adsorption tests were used without drying after the preparation.…”

Section: Discussionmentioning

confidence: 99%

Adsorption and desorption behaviors of cetylpyridinium chloride on hydroxyapatite nanoparticles with different morphologies

et al. 2016

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Application of hydroxyapatite (HAp) nanoparticles to repair damaged enamel has attracted recent attention. In this study, HAp nanoparticles with various morphologies (spherical, short-rod, long-rod and fiber morphologies) were synthesized via chemical precipitation methods without the addition of template molecules, and the adsorption/desorption behaviors of a cationic antibacterial agent, cetylpyridinium chloride (CPC), on the HAp nanoparticles were evaluated. The adsorption of CPC on each HAp nanoparticle showed Langmuir-type adsorption, and the short-rod/long-rod HAp nanoparticles showed thermodynamically more stable adsorption of CPC than that with the spherical/fiber HAp nanoparticles. The desorption rate of CPC from the short-rod/long-rod HAp nanoparticles was slower than that of the spherical/fiber HAp nanoparticles. The HAp nanoparticles with different CPC release profiles presented here have potential applications as nanoparticulate enamel repair agents with antibacterial properties.

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“…The feasibility of emulsions containing α-TCP and HA in the aqueous phase [20], as well as β-TCP [21], has also been reported. A more recent study where pHresponsive calcium phosphate particles and fibres were used to make porous materials has been performed, but with poor structural results [22].…”

Section: Introductionmentioning

confidence: 99%