Preparation and Characterization of the Antibacterial Cu Nanoparticle Formed on the Surface of SiO<sub>2</sub> Nanoparticles

Kim, Young Hwan; Lee, Don Keun; Gil, Hyun; Kim, Chang Woo; Kang, Yong Cheol

doi:10.1021/jp0656779

Cited by 235 publications

(129 citation statements)

References 39 publications

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“…The antimicrobial activity of Cu nanocomposite with SiO 2 against Penicillium citrinum and Candida albicans has been reported [57]. Treatment of cotton fabrics by Cu NPs increased their resistance against microbial attack [58].…”

Section: Antibacterial Activitymentioning

confidence: 99%

Effect of Incubation Time, CuSO4 and Glucose Concentrations on Biosynthesis of Copper Oxide (CuO) Nanoparticles with Rectangular Shape and Antibacterial Activity: Taguchi Method Approach

Rad¹,

Taran²,

Alavi³

2018

Nano BioMed ENG

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In nanotechnology, using of metallic nanoparticles (MNPs) has obtained major attention for over a century because of their unique properties in nano scale. In this paper, the effect of three factors (incubation time, concentrations of copper sulfate and glucose) on the biosynthesis of copper (II) oxide nanoparticles (CuO NPs) by Halomonas elongata IBRC-M 10214 and the antibacterial activity of nanoparticles were evaluated. Experiment design and analysis of Taguchi method were carried out by Qualitek-4 software. Effect of CuSO4 concentration (1.4, 2.8 and 5.6 mM), incubation time (48, 72 and 96 h) as three different levels was measured as three major factors in the biosynthesis of metallic nanoparticles. Synthesized CuO nanoparticles were characterized by utilizing ultraviolet-visible (UVVis) spectroscopy, X-ray diffraction (XRD), Fourier transform infra-red (FT-IR) spectroscopy and field emission scanning electron microscope (FESEM) techniques. Among the three factors, results illustrated that considerable effect was related to CuSO 4 concentration. These analyses demonstrated that the average CuO nanoparticles crystalline size was 57-79 nm with rectangular shape. Also, for evaluating of antibacterial effects, maximum zone of inhibition, two important multidrug resistant pathogenesis bacteria, Escherichia coli ATCC 25922, and Staphylococcus aureus ATCC 43300 were used. Antibacterial assay of CuO nanoparticles showed antibacterial activity toward the pathogenic bacterial strains of E. coli by 5 mm and S. aureus by 5.5 mm for maximum zone of inhibition. In conclusion, this study presented simple, low expensive, eco-friendly and high productivity in the fabrication of CuO nanoparticles. In addition, these metallic nanoparticles had antibacterial effect that could be usable in medicinal aspect for fighting against prominent pathogen bacteria such as E. coli ATCC 25922 and S. aureus ATCC 43300.

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Section: Antibacterial Activitymentioning

confidence: 99%

Effect of Incubation Time, CuSO4 and Glucose Concentrations on Biosynthesis of Copper Oxide (CuO) Nanoparticles with Rectangular Shape and Antibacterial Activity: Taguchi Method Approach

Rad¹,

Taran²,

Alavi³

2018

Nano BioMed ENG

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“…As reported in another paper, the most possible antibacterial mechanism of metal ions was suggested as interaction with thiol groups in proteins and inactivation of the enzyme activity. 20 Unfortunately, this antibacterial mechanism might not explain singly for Zn-Ce/MMT.…”

Section: Surface Properties and Antibacterial Activitymentioning

confidence: 99%

Preparation and Characterization of the Antibacterial Zn²⁺ or/and Ce³⁺ Loaded Montmorillonites

Tan

Zhang

et al. 2008

Chin. J. Chem.

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A series of modified montmorillonites including Zn 2＋ loaded montmorillonite (Zn/MMT), Ce 3＋ loaded montmorillonite (Ce/MMT) and Zn 2＋ -Ce 3＋ loaded montmorillonites (Zn-Ce/MMT) were prepared by an ion-exchange reaction, and characterized using X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The specific surface areas, zeta potentials and antibacterial activity of the modified montmorillonites were also investigated. Zinc and cerium were proved to be present as bivalent zinc state and trivalent cerium state in the modified montmorillonites. For the modified montmorillonites, the d 001 basal spacings increased and the particles were formed of irregular shapes. The antibacterial activity of the modified montmorillonites was enhanced with the increase of specific surface areas and zeta potentials, and Zn 2＋ -Ce 3＋ loaded montmorillonites displayed obvious synergistic antibacterial effect. When Zn/Ce atomic ratio was 1.24, the Zn-Ce/MMT showed high antibacterial efficiency and broad-spectrum antibacterial activity, possessing the MIC against Escherichia coli, Staphylococcus aureus, Candida albicans and Mucor of 1500, 1000, 2000 and 3000 mg•L -1 , respectively.

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“…As an alternative, metal or metal oxide nanoparticles can be coated on nanoparticles to introduce metallic ions, while at the same time the high dispersion of the nanoparticles is maintained. 19,20 In addition to metal or metal oxide nanoparticles, quantum dots (QDs) can also be used to introduce metallic ions into other nanoparticles. QDs are nanocrystals in the size range of 2-10 nm, being promising in energy applications due to their unique photoelectric properties.…”

Section: Introductionmentioning

confidence: 99%

ZnO quantum dots modified bioactive glass nanoparticles with pH-sensitive release of Zn ions, fluorescence, antibacterial and osteogenic properties

et al. 2016

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a Zinc (Zn)-containing materials have osteogenic and antibacterial activities while bioactive glass nanoparticles (BGN) show bone-bonding ability, as well as osteoconductive and osteoinductive properties. Zn-containing BGN are therefore considered to be promising materials for various biomedical applications, particularly in bone regeneration. In this study, we report a convenient method to prepare Zn-containing BGN by coating ZnO quantum dots (QDs) on BGN via electrostatic interactions. The synthesized ZnO-BGN nanocomposite particles are spherical and highly dispersed, and exhibit a unique fluorescence behavior under UV excitation, emitting three wavelengths in the violet, blue and green range.ZnO-BGN showed apatite-forming ability upon immersion in simulated body fluid, but their apatite formation was delayed compared to BGN. Interestingly, ZnO-BGN showed a rapid release of Zn ions at pH 4 but a far slower release at pH 7.4. ZnO-BGN also exhibited antibacterial effects on both Gram-positive and Gram-negative bacteria at the concentrations of 1, 0.1, and 0.01 mg mL , but ZnO-BGN inhibited the relative proliferation of hMSC compared to BGN and the control according to the MTT assay. Notably ZnO-BGN improved the osteogenic differentiation of hMSC as indicated by the determination of the alkaline phosphatase activity. In conclusion, coating quantum dots on BGN is a promising strategy to produce Zn-containing BGN. The synthesized ZnO-BGN are potential materials for bone regeneration, considering their apatite-forming ability, unique ion-release behavior, effective antibacterial activity, non-cytotoxicity, and osteogenic potential.

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Preparation and Characterization of the Antibacterial Cu Nanoparticle Formed on the Surface of SiO₂ Nanoparticles

Cited by 235 publications

References 39 publications

Effect of Incubation Time, CuSO4 and Glucose Concentrations on Biosynthesis of Copper Oxide (CuO) Nanoparticles with Rectangular Shape and Antibacterial Activity: Taguchi Method Approach

Effect of Incubation Time, CuSO4 and Glucose Concentrations on Biosynthesis of Copper Oxide (CuO) Nanoparticles with Rectangular Shape and Antibacterial Activity: Taguchi Method Approach

Preparation and Characterization of the Antibacterial Zn²⁺ or/and Ce³⁺ Loaded Montmorillonites

ZnO quantum dots modified bioactive glass nanoparticles with pH-sensitive release of Zn ions, fluorescence, antibacterial and osteogenic properties

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Preparation and Characterization of the Antibacterial Cu Nanoparticle Formed on the Surface of SiO2 Nanoparticles

Cited by 235 publications

References 39 publications

Effect of Incubation Time, CuSO4 and Glucose Concentrations on Biosynthesis of Copper Oxide (CuO) Nanoparticles with Rectangular Shape and Antibacterial Activity: Taguchi Method Approach

Effect of Incubation Time, CuSO4 and Glucose Concentrations on Biosynthesis of Copper Oxide (CuO) Nanoparticles with Rectangular Shape and Antibacterial Activity: Taguchi Method Approach

Preparation and Characterization of the Antibacterial Zn2+ or/and Ce3+ Loaded Montmorillonites

ZnO quantum dots modified bioactive glass nanoparticles with pH-sensitive release of Zn ions, fluorescence, antibacterial and osteogenic properties

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Product

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Preparation and Characterization of the Antibacterial Cu Nanoparticle Formed on the Surface of SiO₂ Nanoparticles

Preparation and Characterization of the Antibacterial Zn²⁺ or/and Ce³⁺ Loaded Montmorillonites