Synthesis and characterization of HAp nanorods from a cationic surfactant template method

Coelho, João; Moreira, J. Agostinho; Almeida, A.; Monteiro, Fernando J.

doi:10.1007/s10856-010-4122-5

Cited by 42 publications

(22 citation statements)

References 18 publications

(25 reference statements)

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“…• C. Cationic CTAB micelles are also used to modulate the formation of HAp nanoparticles [206,207]. Cao et al [208] reported the preparation of ultrahigh-aspect-ratio HAp nanofibers in inverse CTAB micelles under hydrothermal conditions.…”

Section: Emulsion Methods (Surfactant-based Biphasic Process)mentioning

confidence: 99%

Hydroxylapatite nanoparticles: fabrication methods and medical applications

Okada

Furuzono

2012

Science and Technology of Advanced Materials

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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Section: Emulsion Methods (Surfactant-based Biphasic Process)mentioning

confidence: 99%

Hydroxylapatite nanoparticles: fabrication methods and medical applications

Okada

Furuzono

2012

Science and Technology of Advanced Materials

126

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“…The synthesis of the hydroxyapatite nanoslabs was performed as reported in the literature 10,11 with some modications. The procedure used for the synthesis is shown in Fig.…”

Section: Synthesis Of the Hydroxyapatite Nanoslabsmentioning

confidence: 99%

Electro-deposition of bactericidal and corrosion-resistant hydroxyapatite nanoslabs

et al. 2019

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Herein, nanoscale hydroxyapatite (HA) with a slab-like morphology was synthesized, and its size was calculated to be in the range of 80-150 nm, as confirmed via scanning electron microscopy (SEM) and atomic force microscopy (AFM). The nanoscale HA with a slab-like structure has been referred as HA nanoslabs in the manuscript. The composition, crystallinity, wettability, bacterial resistance porosity, surface roughness and corrosion resistance of these HA nanoslabs were studied using energy dispersive spectroscopy (EDAX), Xray diffraction (XRD), contact angle, colony count BET analyzer and profilometer and polarization techniques, respectively. The contact angle of the HA nanoslabs was found to be 22.6 , which indicated the hydrophilic nature of these nanoslabs. Their bacterial resistance was studied against the Salmonella typhi strain, and it was found that in the presence of the HA nanoslabs, the growth of the bacteria was hindered. For the corrosion resistance study, the HA nanoslabs were electro-deposited on a titanium alloy, used as a substrate. The deposition was carried out at varying currents, viz, 1 mA, 3 mA and 5 mA. The open circuit potential (OCP) and polarization were used for the estimation of the corrosion resistance of the bare and coated substrates. The corrosion potential started shifting towards noble potential, and the current density started decreasing with an increase in the electrochemical deposition current. This indicated good corrosion resistance of these nanoslabs.

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“…The morphology parameter of hydroxyapatite very much influenced by chemical substances as surfactants such carboxymethyl cellulose (CMC) and ethylenediammine tetraacetic acid (EDTA) [5,6]. Previous reports have shown that the CTAB, Sodium dodecyl sulfate (SDS) and mixtures of surfactant CTAB are used as surfactants [7][8][9]. Plant extracts mediated green synthesis of metal nanoparticles becomes popular nowadays due to the eco-friendly methods.…”

Section: Introductionmentioning

confidence: 99%

Experimental studies on caffeine mediated synthesis of hydroxyapatite nanorods and their characterization

Subramanian¹,

Murugan²,

Chinnadurai³

et al. 2020

Mater. Res. Express

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Hydroxyapatite nanorods (HA) were fabricated using caffeine as a modifier at room temperature. Various concentrations of caffeine were utilized to synthesize the HA nanoparticles to analyze its effect on size, shape and morphology. The formation of phosphate ion was confirmed by Fourier Transform spectrophotometer (FTIR). Crystalline structure and phase of the nanoparticles was confirmed by x-ray diffraction study (XRD). The formation of HA nanorods with diversified morphology was confirmed by Transmission Electron Microscope (TEM) images. The results acquired in this study reveals that the HA nanoparticles synthesized using caffeine are uniform and evenly scattered nanorods. The average size of the nanorods obtained from the XRD study was in the range of 20-30 nm. The TEM and SAED investigation revealed the shape, morphology and arrangement of HA nanorods with higher crystallinity. This investigation claims that caffeine is a natural modifier to produce HA nanorods.

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Synthesis and characterization of HAp nanorods from a cationic surfactant template method

Cited by 42 publications

References 18 publications

Hydroxylapatite nanoparticles: fabrication methods and medical applications

Hydroxylapatite nanoparticles: fabrication methods and medical applications

Electro-deposition of bactericidal and corrosion-resistant hydroxyapatite nanoslabs

Experimental studies on caffeine mediated synthesis of hydroxyapatite nanorods and their characterization

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