Antibacterial Activity of TiO2- and ZnO-Decorated with Silver Nanoparticles

Nguyen, Van Thang; Vu, Viet Tien; Nguyen, Tuan Anh; Tran, Van Khanh; Nguyen-Tri, Phuong

doi:10.3390/jcs3020061

Cited by 105 publications

(44 citation statements)

References 80 publications

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“…Moreover, the deposition of Au particles on the surface of ZnO NPs, even at a low molar ratio of ZnO/Au (0.2%), significantly improves the photocatalytic antibacterial activity of ZnO [ 147 ]. Furthermore, Ag-TiO 2 nanocomposite demonstrates antibacterial activity against S. aureus biofilms [ 93 , 148 , 149 ]. It was shown that the inclusion of a 2% composite significantly reduced the formation of biofilms on the surface of the composite resin [ 150 ].…”

Section: Metal Oxide Nanocomposites Against Plankton Cells and Biomentioning

confidence: 99%

Metal Oxide Nanoparticles Against Bacterial Biofilms: Perspectives and Limitations

2020

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At present, there is an urgent need in medicine and industry to develop new approaches to eliminate bacterial biofilms. Considering the low efficiency of classical approaches to biofilm eradication and the growing problem of antibiotic resistance, the introduction of nanomaterials may be a promising solution. Outstanding antimicrobial properties have been demonstrated by nanoparticles (NPs) of metal oxides and their nanocomposites. The review presents a comparative analysis of antibiofilm properties of various metal oxide NPs (primarily, CuO, Fe3O4, TiO2, ZnO, MgO, and Al2O3 NPs) and nanocomposites, as well as mechanisms of their effect on plankton bacteria cells and biofilms. The potential mutagenicity of metal oxide NPs and safety problems of their wide application are also discussed.

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Section: Metal Oxide Nanocomposites Against Plankton Cells and Biomentioning

confidence: 99%

Metal Oxide Nanoparticles Against Bacterial Biofilms: Perspectives and Limitations

2020

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“…[40]. Furthermore, TiO 2 and ZnO nanoparticles have shown to promote the antibacterial activity of 8 mm against bacteria (S. aureus-ATCC 25923) and (E. coli-ATCC 25922) [41]. and antimicrobial activities among other crystalline structures.…”

Section: Resultsmentioning

confidence: 99%

Antibacterial Activity of TiO2 Nanoparticles Prepared by One-Step Laser Ablation in Liquid

Khashan

Sulaiman

Abdulameer³

et al. 2021

Applied Sciences

107

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Laser ablation in liquid was utilized to prepare a TiO2 NP suspension in in deionized distilled water using Q-switch Nd: YAG laser at various laser energies and ablation times. The samples were characterized using UV–visible absorption spectra obtained with a UV–visible spectrophotometer (UV-Vis,) Fourier transform infrared (FTIR), X-ray diffraction (XRD), and transmission electron microscope (TEM). While, UV-Vis spectra showed the characteristic band-to-band absorption peak of TiO2 NPs in the UV range. FTIR analysis showed the existence of O-Ti-O bond. XRD patterns indicated the presence of (101) and (112) plane crystalline phases of TiO2. TEM images showed a spherical-like structure of TiO2 NPs with various size distributions depending on the ablation period. It was also found that there is a relationship between laser ablation time and TiO2 NP size distribution, where longer ablation times led to the smaller size distribution. The antibacterial activity of TiO2 NPs was evaluated with different species of bacteria such as Escherichia coli, Pseudomonas aeruginosa, Proteus vulgaris, and Staphylococcus aureus, using the liquid approach. The optimum activity of TiO2 NPs is found to be against E. coli at 1000 μg mL−1. Furthermore, adding, TiO2 NPs (1000 μg mL−1) in the presence of amoxicillin has a synergic effect on E. coli and S. aureus growth, as measured by the well diffusion method. However, both E. coli (11.6 ± 0.57mm) and S. aureus (13.3 ± 0.57mm) were inhibited by this process.

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“…e use of TiO 2 in photovoltaics is also promising and practically significant [15,16]. ese are only a few examples of titanium (IV) oxide applications, based on prominent characteristics of TiO 2 such as structural, adsorption, (photo) catalytic, and electrical properties, which, depending on the synthesis conditions, can differ significantly [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Commercial TiO2 P90 Modified with ZnO by the Impregnation Method

Dontsova

Yanushevska

Nahirniak

et al. 2021

Journal of Chemistry

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This article is devoted to TiO2/ZnO nanocomposites’ creation by modifying with the commercial TiO2/P90 product using the impregnation method and identifying the effect of the ZnO modifier on its adsorption, structural, photocatalytic, and electrical properties. The synthesized TiO2/ZnO nanocomposites were characterized by XRD, XRF, XPS, and low-temperature nitrogen adsorption-desorption methods. As a result, nanostructured TiO2/ZnO composites with the ZnO content of 2, 5, 10, and 15% were obtained. It was shown that the phase composition of TiO2/P90 does not change during the nanocomposite synthesis. XPS studies of TiO2/ZnO nanocomposites indicated the presence of Ti4+, Zn2+, O2−, and OH states on their surface, which is associated with TiO2, ZnO, and hydroxide ions. The nitrogen adsorption-desorption method showed that the commercial TiO2/P90 sample is nonporous, and all TiO2/ZnO nanocomposites are characterized by almost the same homogeneous mesoporous structure. Experimentally established sorption and photocatalytic properties depend on the specific surface area and electrostatic interaction with dyes. The effect of the ZnO modifier on I-V characteristics of the TiO2/P90 sample was revealed. The obtained experimental data showed that the TiO2/P90 sample contains one type of current carriers, and TiO2/2ZnO and TiO2/5ZnO nanocomposites are characterized by two types of current carriers.

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Antibacterial Activity of TiO2- and ZnO-Decorated with Silver Nanoparticles

Cited by 105 publications

References 80 publications

Metal Oxide Nanoparticles Against Bacterial Biofilms: Perspectives and Limitations

Metal Oxide Nanoparticles Against Bacterial Biofilms: Perspectives and Limitations

Antibacterial Activity of TiO2 Nanoparticles Prepared by One-Step Laser Ablation in Liquid

Characterization of Commercial TiO2 P90 Modified with ZnO by the Impregnation Method

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