Capping antibacterial Ag nanorods aligned on Ti interlayer by mesoporous TiO2 layer

Akhavan, Omid; Ghaderi, Elham

doi:10.1016/j.surfcoat.2009.03.033

Cited by 74 publications

(37 citation statements)

References 39 publications

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“…Akhavan et al [18,19] reported two studies about the antibacterial effect of silver, one in which an electric field was applied in the direction of silver nanorods grown on a Ti interlayer deposited by dc magnetron sputtering, and another which reported compact Ag nanorods capped by sol-gel mesoporous TiO 2 layer, both deposited onto silicon substrates. The two studies showed a strong, fast and lasting antibacterial activity against Escherichia coli (E. coli).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

PVD-grown antibacterial Ag-TiN films on piezoelectric PVDF substrates for sensor applications

Marques

Carvalho

Henriques

et al. 2015

Surface and Coatings Technology

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This work reports on Ti 1-x Ag x and Ag-TiN x electrodes deposited by dc/pulsed dc magnetron sputtering at room temperature on poly (vinylidene fluoride) (PVDF) with the purpose to develop sensors for prosthesis. In Ti 1-x Ag x electrodes, silver content was varied from 0-100 at. %; and for Ag-TiN x electrodes, the nitrogen content was varied between 34 to 43 at. % and the Ti/Ag ratio changed from 12.2 to 5.2. The antibacterial activity of the samples was show that Ag-TiN x electrodes are more promising candidates to be used in PVDF sensor protection than Ti 1-x Ag x electrodes.

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Section: Accepted Manuscriptmentioning

confidence: 99%

PVD-grown antibacterial Ag-TiN films on piezoelectric PVDF substrates for sensor applications

Marques

Carvalho

Henriques

et al. 2015

Surface and Coatings Technology

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“…In recent times owing to advancement of some resistant bacterial strains to counter the antibiotics, the antibacterial activity of nanomaterials, such as zinc, silver and copper, with their unique size dependent properties has attracted great attentions [1][2][3][4][5]. For instance, ZnO with a quartzite hexagonal phase have a direct band gap of 3.37 eV possesses a wide range of technological applications.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of ZnO-Cu2O Composite Nanoparticles and Effect of Cu2O Doping in ZnO on Antimicrobial Activity

Bayahia¹,

M²,

Hassan³

et al. 2017

Mod Chem Appl

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The comparative antibacterial activity of ZnO and ZnO-Cu 2 O composite nanoparticles has been investigated and presented in this manuscript. The present study describes the facile synthesis of pristine ZnO nanoparticles and ZnO-Cu 2 O composite nanoparticles respectively. ZnO nanoparticles and ZnO-Cu 2 O composite nanoparticles have been synthesized by simple solution process using zinc nitrate hexahydrate and copper acetate as sole precursor. The diameter of each ZnO and ZnO-Cu 2 O composite nanoparticles lies between 200 to 600 nm respectively as observed from SEM images. Herein, we scrutinized the influence of Cu 2 O doping in ZnO on the antibacterial activity. The E. coli bacteria which are generally ever-present have been chosen as the model organisms for relative study. The experimental procedures for the antibacterial test include spectroscopic method, taking different concentrations (10-40 μg/ml) of samples to unearth the minimum inhibitory concentration. Our analysis says that the minimum concentration of ZnO and ZnO-Cu 2 O composite nanoparticles which inhibited the growth of E. coli bacteria was found to be 10 μg. A mechanism was also proposed to describe the better antibacterial activity of the ZnO-Cu 2 O composite nanoparticles than the pure ZnO nanoparticles.

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“…The antimicrobial activity of silver-based materials depends on the nanostructure that should provide a high surface-area-to-volume ratio and hence a high fraction of surface atoms [12,26], which enhances the antibacterial property of silver. Pal et al [64] investigated the antibacterial properties of silver nanoparticles with different shapes.…”

Section: Antibacterial Property Of Ag Chiral Nano-flowersmentioning

confidence: 99%

“…Recent investigations have shown that enhanced antibacterial property can be achieved when silver nanocolumns/rods are used instead of normal silver thin films or silver nanoparticles. This is due to higher roughness of these structures and surface area ratio [26].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial effect, structural characterization, and some applications of silver chiral nano-flower sculptured thin films

2015

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Silver chiral nano-flowers with 3-, 4-, and 5-fold symmetry were produced using oblique angle deposition method in conjunction with the rotation of sample holder with different speeds at different sectors of each revolution. X-ray diffraction, atomic force microscopy, and scanning electron microscopy were employed to obtain the nanostructure and morphology of the films. Their antibacterial, electrical, and hydrophobic properties were investigated. Antibacterial properties were investigated against a range of microorganisms including Escherichia coli ATCC 8739, Staphylococcus aureus ATCC 25923, and Candida albicans PTCC 5027. Electrical conductivity of these films relative to that of bulk sample is reduced by a factor of about 10 3 due to porosity, surface roughness, and anisotropic structure of these films. Hydrophobicity results show dependence on the symmetry of these chiral nano-flowers.

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Capping antibacterial Ag nanorods aligned on Ti interlayer by mesoporous TiO2 layer

Cited by 74 publications

References 39 publications

PVD-grown antibacterial Ag-TiN films on piezoelectric PVDF substrates for sensor applications

PVD-grown antibacterial Ag-TiN films on piezoelectric PVDF substrates for sensor applications

Facile Synthesis of ZnO-Cu2O Composite Nanoparticles and Effect of Cu2O Doping in ZnO on Antimicrobial Activity

Antibacterial effect, structural characterization, and some applications of silver chiral nano-flower sculptured thin films

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