Effect of ethylene glycol concentration on the structural and optical properties of multimetal oxide CdO–NiO–Fe2O3 nanocomposites for antibacterial activity

Ahmed, Abdullah Ahmed Ali; Al-Mushki, Asma A. A.; Al‐Asbahi, Bandar Ali; Abdulwahab, A.M.; Abduljalil, Jameel M.; Saad, Fuad A. A.; Qaid, Saif M. H.; Ghaithan, Hamid M.; Farooq, W. A.; Abd‐Elkader, Omar H.

doi:10.1016/j.jpcs.2021.110113

Cited by 11 publications

(2 citation statements)

References 77 publications

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“…This activity is higher than those in many previous studies that have been reported for E. coli. − On other hand, Ni@Ag presented the lowest levels with a ZOI of around 5 mm. Generally, trimetallic NPs exhibited improved antibacterial activity over bimetallic samples, especially (Ni-Cu)1@Ag and (Ni-Cu)2@ NPs.…”

Section: Resultscontrasting

confidence: 61%

Synthesis of Trimetallic (Ni-Cu)@Ag Core@Shell Nanoparticles without Stabilizing Materials for Antibacterial Applications

Ahmed

Aldeen

Al-Aqil³

et al. 2022

ACS Omega

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We report a simple method to prepare colloidal trimetallic (Ni-Cu)@Ag core@shell nanoparticles (NPs) without stabilizing materials. Experimental evidence was found for the successful synthesis of these NPs using X-ray diffraction (XRD), optical spectroscopy, and high-resolution transmission electron microscopy (HRTEM). The presence of core metals (Ni and Cu) was confirmed by elemental analysis using a total reflection X-ray fluorescence (TXRF) analysis. In addition, the absorption spectra of the prepared samples exhibited broad bands compared to the bands of the monometallic NPs, indicating the formation of a core–shell nanostructure. The antibacterial activity of the trimetallic NPs was evaluated against three Gram-negative (Pseudomonas aeruginosa, Escherichia coli, and Salmonella) and two Gram-positive (Streptococcus and Staphylococcus aureus) bacteria on Mueller–Hinton agar. These NPs showed high inhibition of bacterial growth at the low sample concentrations used in this study compared to other nanomaterials. One of the interesting results of the current study is that the inhibition zone of Pseudomonas aeruginosa as a resistant bacterium was high for most NPs. These results make the prepared samples promising candidates for antibiotic material applications.

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Section: Resultscontrasting

confidence: 61%

Synthesis of Trimetallic (Ni-Cu)@Ag Core@Shell Nanoparticles without Stabilizing Materials for Antibacterial Applications

Ahmed

Aldeen

Al-Aqil³

et al. 2022

ACS Omega

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“…31 According to literature, the strong band around 1350–1500 cm −1 is associated with carbonate ions weakly attached to the sample surface. 31,43 Bands for oxygen–metal-oxygen (O–M–O) and metal-oxygen (M–O) are commonly traced in the region 430–1004 cm −1 . 1,13 Thus, the peak at 582–596 cm −1 is for Fe–O and Cu–O and 435 cm −1 for Mg–O.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of glycine-mediated CuO–Fe₂O₃–MgO nanocomposites: Structural, optical, and antibacterial properties

Alnahari

Al-Sharabi

Al-Hammadi

et al. 2023

Composites and Advanced Materials

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Multi-phase metal oxides nanocomposites (NCs) have attracted considerable attention due to their extraordinary properties and novel applications over monometallic ones. Hence, trimetallic oxides nanoparticles (NPs) are preferred because of their immensely improved optical, catalytic, and biological properties, but few materials have been reported. Besides, glycine is an excellent structure-directing agent for NPs production with tailored physicochemical properties. Thus, in this work, a novel tri-phase CuO–Fe2O3–MgO (1:1:1) NCs was prepared via a sol-gel method in the presence of glycine as a fuel. The obtained NCs were characterized by Fourier transmission infrared, X-ray diffraction (XRD), Scanning electron micrographs, and UV-Vis. The XRD analysis emphasized the formation of NCs with monoclinic CuO, cubic MgO, hexagonal Fe2O3, and tetragonal CuFe2O4 crystals. The average crystallite size (D) was in the order of 10th of nm as computed by Scherrer method, with ternary phase seemingly affect the straightforward influence of glycine fuel concentration on the final crystallite sizes. UV-Vis analysis indicates two optical energy bandgaps which increased as glycine concentration increase. The antibacterial test against Staphylococcus aureus and Escherichia coli bacteria revealed comparable activity to that of Azithromycin standard drug, which increased with glycine concentration increase. The glycine-based tailored structural, optical, and biological properties of such trimetallic NCs making them of considerable candidate for certain applications development, possibly electronics and antibiotics; a case that encourage further investigations.

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Investigations on Chemically Synthesized Pure and Doped Manganese Dioxide Nanoparticles for Dye Removal and Photocatalytic Applications

Chellappan,

Thangaraj,

Muthukurumban

et al. 2024

J Fluoresc

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Pure and Mg 2+ , Ni 2+ , Cd 2+ doped MnO2 nanoparticles were synthesized by chemical coprecipitation method. These samples were characterised by PXRD, SEM, EDX, FTIR, UV-Vis-NIR, PL, Antibacterial, Cyclic Voltammetry, dye degradation and Photocatalytic studies. From the powder XRD studies, the crystallite size of the particle was calculated using Scherer formula and found that the synthesized nanoparticles were in the range from 10 to 12 nm. The morphology of all the synthesized samples was viewed from SEM micrograph. The composition and purity of the samples were identified from EDX studies. In FTIR spectra metal-oxygen stretching and bending modes of vibrations were observed. From the absorption spectra of UV-Vis optical analysis values of absorption coefficient, extinction coefficient, refractive index, real and imaginary part of optical dielectric constant and optical conductivity were compared. The energy band gap obtained from tauc's plot shows semiconducting nature of the pure and doped samples. Investigations on photoluminecsence spectrum reveals blue shift in wavelength for doped nanooxides compared to pure MnO2. Antimicrobial activity of synthesised samples against gram positive and gram negative bacteria was determined. The obtained results reveal very high bacterial resistance in Cd 2+ doped MnO2 nanoparticles. The specific capacitance values were determined from Cyclic Voltammetry studies. Using the batch method of dye removing technique the percentage of malachite green dye removal was calculated. Also the photocatalytic efficiency of all the synthesized MnO2 samples in removing malachite green dye was studied by exposing to sunlight for different dosage and contact time.

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Effect of ethylene glycol concentration on the structural and optical properties of multimetal oxide CdO–NiO–Fe2O3 nanocomposites for antibacterial activity

Cited by 11 publications

References 77 publications

Synthesis of Trimetallic (Ni-Cu)@Ag Core@Shell Nanoparticles without Stabilizing Materials for Antibacterial Applications

Synthesis of Trimetallic (Ni-Cu)@Ag Core@Shell Nanoparticles without Stabilizing Materials for Antibacterial Applications

Synthesis of glycine-mediated CuO–Fe₂O₃–MgO nanocomposites: Structural, optical, and antibacterial properties

Investigations on Chemically Synthesized Pure and Doped Manganese Dioxide Nanoparticles for Dye Removal and Photocatalytic Applications

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Effect of ethylene glycol concentration on the structural and optical properties of multimetal oxide CdO–NiO–Fe2O3 nanocomposites for antibacterial activity

Cited by 11 publications

References 77 publications

Synthesis of Trimetallic (Ni-Cu)@Ag Core@Shell Nanoparticles without Stabilizing Materials for Antibacterial Applications

Synthesis of Trimetallic (Ni-Cu)@Ag Core@Shell Nanoparticles without Stabilizing Materials for Antibacterial Applications

Synthesis of glycine-mediated CuO–Fe2O3–MgO nanocomposites: Structural, optical, and antibacterial properties

Investigations on Chemically Synthesized Pure and Doped Manganese Dioxide Nanoparticles for Dye Removal and Photocatalytic Applications

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Synthesis of glycine-mediated CuO–Fe₂O₃–MgO nanocomposites: Structural, optical, and antibacterial properties