Nano-metal Oxides for Antibacterial Activity

Jagadeeshan, Sankar; Parsanathan, Rajesh

doi:10.1007/978-3-030-04477-0_3

Cited by 29 publications

(10 citation statements)

References 94 publications

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“…The generated damage the iron–sulfur (Fe–S) clusters in the electron transport chain, releasing more ferrous ions, and these ferrous ions are oxidized by the Fenton reaction for generating moreOH˙. 135,136 Antibacterial activity through the release of Ag + ions from Ag–SiO 2 NCs was proposed by Cui et al As seen in Fig. 8, the electrostatic force of interaction between the positively charged NCs and negatively charged bacterial cells led to the release of Ag + ions and transported them to the cytoplasm.…”

Section: Applicationsmentioning

confidence: 99%

Insights into ZnO-based doped porous nanocrystal frameworks

Abebe

Murthy

2022

RSC Adv.

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Section: Applicationsmentioning

confidence: 99%

Insights into ZnO-based doped porous nanocrystal frameworks

Abebe

Murthy

2022

RSC Adv.

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“…The disorganization of cell wall was due to the strong bond between positively charged metal oxide nanoparticles and membrane. Apart from binding with the cell membrane, these metal oxide nanoparticles also bind with mesosomes, resulting in the alteration of cell division, DNA replication, and cellular respiration [79].…”

Section: Mechanism Of Antibacterial Activitymentioning

confidence: 99%

Synthesis, Characterization, Photocatalysis, and Antibacterial Study of WO3, MXene and WO3/MXene Nanocomposite

et al. 2022

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Tungsten oxide (WO3), MXene, and an WO3/MXene nanocomposite were synthesized to study their photocatalytic and biological applications. Tungsten oxide was synthesized by an easy and cost-effective hydrothermal method, and its composite with MXene was prepared through the sonication method. The synthesized tungsten oxide, MXene, and its composite were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), Fourier transform infrared (FTIR), energy-dispersive X-ray analysis (EDX), and Brunauer–Emmett–Teller (BET) for their structural, morphological, spectral, elemental and surface area analysis, respectively. The crystallite size of WO3 calculated from XRD was ~10 nm, the particle size of WO3 was 130 nm, and the average thickness of MXene layers was 175 nm, which was calculated from FESEM. The photocatalytic activity of as-synthesized samples was carried out for the degradation of methylene blue under solar radiation, MXene, the WO3/MXene composite, and WO3 exhibited 54%, 89%, and 99% photocatalytic degradation, respectively. WO3 showed maximal degradation ability; by adding WO3 to MXene, the degradation ability of MXene was enhanced. Studies on antibacterial activity demonstrated that these samples are good antibacterial agents against positive strains, and their antibacterial activity against negative strains depends upon their concentration. Against positive strains, the WO3/MXene composite’s inhibition zone was at 7 mm, while it became 9 mm upon increasing the concentration. This study proves that WO3, MXene, and the WO3/MXene nanocomposite could be used in biological and environmental applications.

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“…ROS can damage iron-sulfur enzyme cofactors. NP size, concentration, and stability in the growth medium affect bactericidal activity 58,59 .…”

Section: Contact Anglementioning

confidence: 99%

A novel method for ZnO@NiO core–shell nanoparticle synthesis using pulse laser ablation in liquid and plasma jet techniques

Imran

Hubeatir

Aadim

2023

Sci Rep

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Given their versatile nature and wide range of possible applications, core–shell nanoparticles (NPs) have received considerable attention. This paper proposes a novel method for synthesizing ZnO@NiO core–shell nanoparticles using a hybrid technique. The characterization demonstrates the successful formation of ZnO@NiO core–shell nanoparticles, which have an average crystal size of 13.059 nm. The results indicate that the prepared NPs have excellent antibacterial activity against both Gram-negative and Gram-positive bacteria. This behavior is primarily caused by the accumulation of ZnO@NiO NPs on the bacteria's surface, which results in cytotoxic bacteria and a relatively increased ZnO, resulting in cell death. Moreover, the use of a ZnO@NiO core–shell material will prevent the bacteria from nourishing themselves in the culture medium, among many other reasons. Finally, the PLAL is an easily scalable, cost-effective, and environmentally friendly method for the synthesis of NPs, and the prepared core–shell NPs could be used in other biological applications such as drug delivery, cancer treatment, and further biomedical functionalization.

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Nano-metal Oxides for Antibacterial Activity

Cited by 29 publications

References 94 publications

Insights into ZnO-based doped porous nanocrystal frameworks

Insights into ZnO-based doped porous nanocrystal frameworks

Synthesis, Characterization, Photocatalysis, and Antibacterial Study of WO3, MXene and WO3/MXene Nanocomposite

A novel method for ZnO@NiO core–shell nanoparticle synthesis using pulse laser ablation in liquid and plasma jet techniques

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