Characterization and antibacterial properties of stable silver substituted hydroxyapatite nanoparticles synthesized through surfactant assisted microwave process

Iqbal, Nida; Kadir, Mohammed Rafiq Abdul; Malek, N. A. N. N.; Mahmood, Nasrul Humaimi; Murali, Malliga Raman; Kamarul, Tunku

doi:10.1016/j.materresbull.2013.04.068

Cited by 47 publications

(25 citation statements)

References 28 publications

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“…Antibacterial properties of Ni 2 þ doped Mg-SiHA samples were investigated qualitatively and quantitatively against P. aeruginosa, and E.coli, respectively. Results showed that HA, SiHA, and Mg-SiHA had no effect on the growth of P. aeruginosa, and E.coli, which is consistent with previous studies conducted on different types of microorganism [60][61][62][63], however incorporation of Ni 2 þ played a vital role in increased activity of Mg-SiHA against microorganism.…”

Section: Samplessupporting

confidence: 90%

Synthesis, characterization, in vitro bioactivity and antimicrobial activity of magnesium and nickel doped silicate hydroxyapatite

Alshemary

Akram

Goh

et al. 2015

Ceramics International

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Section: Samplessupporting

confidence: 90%

Synthesis, characterization, in vitro bioactivity and antimicrobial activity of magnesium and nickel doped silicate hydroxyapatite

Alshemary

Akram

Goh

et al. 2015

Ceramics International

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“…The obtained results also show a higher antibacterial effect for Ag-NPs compared to the HAp@Ag nanocomposite under identical experimental conditions. This may be due to the slow release of Ag-NPs from the HAp@Ag nanocomposite, which interacts with proteins and enzymes of bacteria [ 60 ].…”

Section: Resultsmentioning

confidence: 99%

Green Synthesis and Antibacterial Activity of HAp@Ag Nanocomposite Using Centella asiatica (L.) Urban Extract and Eggshell

Pham

Nguyen

Pham

2020

International Journal of Biomaterials

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In recent years, the green synthesis of nanoparticles via biological processes has attracted considerable attention. Herein, we introduce a facile and green approach for the synthesis of poriferous silver nanoparticles (Ag-NPs) decorated hydroxylapatite (HAp@Ag) nanoparticles with excellent antibacterial properties. All the nanocomposites were fully characterized in the solid state via various techniques such as X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and energy-dispersive X-ray spectrometer (EDX), in which the synthesized Ag-NPs (24 nm in diameter) and their homogeneous incorporation on HAp have been studied by ultraviolet-visible (UV-vis) technique, transmission electron microscopy (TEM), and dynamic light scattering (DLS) analysis. The obtained results indicate that the structure and morphology of HAp have no significant changes after the incorporation of Ag-NPs on its surface. Moreover, an impressive antibacterial activity of HAp@Ag nanocomposite against Gram-positive bacterium Staphylococcus aureus and Gram-negative bacteria Escherichia coli and Pseudomonas aeruginosa has been recorded by using the agar well diffusion method. As a result, the HAp@Ag nanocomposite promises to be a great biomedical material with high antibacterial properties.

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“…The end group of modifying agents interacted ionically with the silicate layers of clay, which resulted in a finite interlayer expansion and increase in d‐space [13]. Another explanation for the increase in lattice parameters may be attributed to the bigger ionic radius (129 pm) of Ag + ion than that of Na + (116 pm) [14]. As a matter of fact, the metallic Ag NPs formed at the latter location led to an increase in basal spacing, which was further confirmed by the XRD patterns in the wide angle range of 2 θ (30° < 2 θ < 70°) shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and application of silver nanoparticles loaded on modified montorillonite

Tian¹,

Tuping²,

Huang³

2015

Micro & Nano Letters

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Na + montmorillonite (MMT) was modified with L-cystine, polyvinylpyrrolidone or mercaptoacetic acid and then silver (Ag) was loaded on the modified MMTs via ion-exchange reaction under microwave irradiation for 4 min, and finally the Ag ions were turned to Ag nanoparticles (Ag NPs) under the irradiation of an ultraviolet lamp. The Ag-loaded L-cystine-modified MMT (Ag@AA-MMT) with an Ag content of 10.93 wt% was the highest of all, suggesting the distinct advantage of microwave-assisted ion-exchange reaction on a modified MMT. X-ray photoelectron spectroscopy confirmed the successful loading of silver and the strong interaction between sulphur and Ag. Scanning electron microscopy, transmission electron microscopy and high-resolution transmission electron microscopy and X-ray diffraction patterns proved the existence and formation mechanism of metallic Ag NPs. The Ag-loaded modified MMT has shown a slow release property and good thermal stability owing to the shielding effect of the MMT layers. The Ag@AA-MMT, showing a very excellent antibacterial property and catalytic activity, exhibited a wide range of potential applications.

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Characterization and antibacterial properties of stable silver substituted hydroxyapatite nanoparticles synthesized through surfactant assisted microwave process

Cited by 47 publications

References 28 publications

Synthesis, characterization, in vitro bioactivity and antimicrobial activity of magnesium and nickel doped silicate hydroxyapatite

Synthesis, characterization, in vitro bioactivity and antimicrobial activity of magnesium and nickel doped silicate hydroxyapatite

Green Synthesis and Antibacterial Activity of HAp@Ag Nanocomposite Using Centella asiatica (L.) Urban Extract and Eggshell

Synthesis and application of silver nanoparticles loaded on modified montorillonite

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