A review of physiochemical and photocatalytic properties of metal oxides against Escherichia coli

Лебедев, А. Е.; Anariba, Franklin; Tan, Jeck Chuang; Xu, Li; Wu, Ping

doi:10.1016/j.jphotochem.2018.04.013

Cited by 34 publications

(13 citation statements)

References 84 publications

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“…The diffraction peak found is clearly defined and points to the Bi-anatase TiO 2 s phase. These anatase phases are well-known in water purification and color removal processes [ 27 ]. The size of the Bi-TiO 2 photocatalyst was determined using the Debye Scherrer formula and is 24 nm.…”

Section: Resultsmentioning

confidence: 99%

[Retracted] Molecular Docking and Green Synthesis of Bioinorganic TiO2 Nanoparticles against E.coli and S.aureus

Al-Serwi

El-Sherbiny

Kumar³

et al. 2022

Bioinorganic Chemistry and Applications

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This study used a simple solution evaporation approach to make a bioinorganic titanium dioxide (Bi-TiO2) photocatalyst for dye contaminant degradation. A variety of techniques, including X-ray diffraction (XRD), Fourier-transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM) coupled with energy dispersive X-ray analysis (EDAX), and differential reflectance spectroscopy, had been employed to classify the structural and optical properties of the prepared bioinorganic photocatalyst (UV-DRS). Using simulated solar irradiation, the photocatalytic activity of the produced Bi-TiO2 nanoparticles was examined by detecting the degradation of a solution of methylene blue (MB) as a model dye molecule. The developed Bi-TiO2 photocatalyst demonstrates superior photocatalytic action than commercially available powder TiO2, according to photo-degradation experiments. E.coli and S.aureus bacterial strains were employed to assess the antibacterial activity of Bi-TiO2 nanoparticles. The most active molecules that gain antibacterial activity were examined in isolated or extracted components from the tulsi plant. The chosen compounds were docked with thymidylate kinase (TMPK), a potential therapeutic goal for the preparation of novel antibacterial drugs with the PDB ID of 4QGG. Five compounds, namely rosmarinic acid, vicenin-2, orientin, vitexin, and isoorientin, out of the 27 chosen compounds, showed a higher docking score and may aid in boosting antibacterial activity. The synthesized Bi-TiO2 nanoparticles produced antibacterial activity that was effective against Gram-positive bacteria. The nanomaterials that have been synthesized have a lot of potential in wastewater treatment and biomedical management technologies.

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Section: Resultsmentioning

confidence: 99%

[Retracted] Molecular Docking and Green Synthesis of Bioinorganic TiO2 Nanoparticles against E.coli and S.aureus

Al-Serwi

El-Sherbiny

Kumar³

et al. 2022

Bioinorganic Chemistry and Applications

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“…The extract manipulated for biosynthesized of Ag nanoparticles is Allium Sativum flower extract. The phytochemicals in extract utilized for reduction, capping and stabilizing process have easily understood via phytochemical analysis (Lebedev et al 2018;Velsankar et al 2019). The basic constituents of Allium Sativum flower extract are expressed in percentage wise namely; moisture content (1.97%), total ash (5.97%), acid insoluble ash (0.97%), water-soluble ash (5.00%), alcohol soluble extractive (7.90%), and watersoluble extractive value (9.87%).…”

Section: Discussion Of Results In Analysis Made On Allium Sativum Flower Extractmentioning

confidence: 99%

Evaluations of biosynthesized Ag nanoparticles via Allium Sativum flower extract in biological applications

et al. 2020

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The eco-friendly phytomediated synthesis of Ag nanoparticles provides better efficient applications than synthetic methods. Ag nanoparticles are considered by researchers due to its specific properties. The phytochemical analysis of Allium Sativum flower extract provides the phytochemicals exist in it. Due to this, the efficient eco-friendly synthesis of Ag nanoparticles via Allium Sativum flower extract has performed. The X-ray diffraction pattern exposes the crystalline nature with the mean crystallite size at 25 nm. The Fourier Transform Infra-Red spectrum displays the phytochemicals involved in the synthesis. The UV-Visible spectrum illustrates the formation of Ag nanoparticles with SPR band at 436 nm. The particle size analyzer demonstrates the size of formed Ag particles in 20-35 nm. The morphological, elemental and structural analyzes demonstrate the formation of spherical shaped Ag nanoparticles. The formation of Ag nanoparticles was confirmed by the appearance of Ag peak in Energy Dispersive X-ray Diffraction spectrum and mapping study. The antimicrobial activity explains the effective antimicrobial effect on human pathogens. The antioxidant activity reports the efficient scavenging property of synthesized Ag nanoparticles. The anti-inflammatory activity reveals the potential ability of protein denaturation on bovine serum albumin. The anti-diabetic activity exhibits much inhibition on α-Amylase. The anticancer activity reports the effective inhibition of synthesized Ag nanoparticles on human MCF-7 breast cancer cells.

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“…First, ROS can bind to bacterial membranes, inducing destruction of bacterial cell walls. Second, ROS can penetrate bacterial cells to bind to and damage lipids and proteins and thus disrupt cell physiological activities, leading to bacterial death [31]. Although light-activated nanomaterials have been demonstrated for both photothermal therapy and photodynamic therapy, designing nanomaterials to provide a synergistic effect of photothermal therapy and photodynamic therapy is still an emerging task in medical therapeutics.…”

Section: Introductionmentioning

confidence: 99%

Gold Nanorod-Decorated Metallic MoS2 Nanosheets for Synergistic Photothermal and Photodynamic Antibacterial Therapy

et al. 2021

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Light-responsive nanocomposites have become increasingly attractive in the biomedical field for antibacterial applications. Visible-light-activated metallic molybdenum disulfide nanosheets (1T-MoS2 NSs) and plasmonic gold nanorods (AuNRs) with absorption at a wavelength of 808 nm were synthesized. AuNR nanocomposites decorated onto 1T-MoS2 NSs (MoS2@AuNRs) were successfully prepared by electrostatic adsorption for phototherapy applications. Based on the photothermal effect, the solution temperature of the MoS2@AuNR nanocomposites increased from 25 to 66.7 °C after 808 nm near-infrared (NIR) laser irradiation for 10 min. For the photodynamic effect, the MoS2@AuNR nanocomposites generated reactive oxygen species (ROS) under visible light irradiation. Photothermal therapy and photodynamic therapy of MoS2@AuNRs were confirmed against E. coli by agar plate counts. Most importantly, the combination of photothermal therapy and photodynamic therapy from the MoS2@AuNR nanocomposites revealed higher antibacterial activity than photothermal or photodynamic therapy alone. The light-activated MoS2@AuNR nanocomposites exhibited a remarkable synergistic effect of photothermal therapy and photodynamic therapy, which provides an alternative approach to fight bacterial infections.

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A review of physiochemical and photocatalytic properties of metal oxides against Escherichia coli

Cited by 34 publications

References 84 publications

[Retracted] Molecular Docking and Green Synthesis of Bioinorganic TiO2 Nanoparticles against E.coli and S.aureus

[Retracted] Molecular Docking and Green Synthesis of Bioinorganic TiO2 Nanoparticles against E.coli and S.aureus

Evaluations of biosynthesized Ag nanoparticles via Allium Sativum flower extract in biological applications

Gold Nanorod-Decorated Metallic MoS2 Nanosheets for Synergistic Photothermal and Photodynamic Antibacterial Therapy

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