Synthesis of Multi-Walled Carbon Nanotubes Decorated with Zinc Oxide Nanoparticles for Removal of Pathogenic Bacterial

Haider, Adawiya J.; Anbari, Riyad AL-; Mohammed, Hayder; Ahmed, Duha S.

doi:10.30684/etj.36.10a.8

Cited by 7 publications

(2 citation statements)

References 7 publications

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“…In contrast to other antibacterial films, this film performed particularly well after 12 hours of cultivation. These results clearly showed that TiO2 and ZnO have a greater ability to resist bacteria growth [38][39][40][41][42][43]. 2.0 2.5 0.13 ± 0.02 0.12 ± 0.00577 The results are means of three replicates; ±, standard deviation (SD).…”

Section: Antibacterial Activitymentioning

confidence: 99%

Preparation of Cellulose Acetate Nanocomposite Films Based on TiO2-ZnO Nanoparticles Modification as Food Packaging Applications

Ali¹,

Hameed²

2022

JASN

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To develop bio-packaging materials, nanocomposite films of cellulose acetate reinforced with titanium dioxide and zinc oxide nanoparticles were prepared, by the casting method at different weight ratios of ZnO nanoparticles (1.5, 2, and 2.5) wt% and a constant weight ratio of 2 wt% TiO2. ZnO and TiO2 nanoparticles were tested using scanning electron microscopy (SEM). The mechanical properties (tensile strength and elongation) were improved at a fixed level of Cellulose Acetate+ 2% TiO2+1.5wt% ZnO loading. Beyond that level of loading, they decreased. The tensile strength was decreased due to some degrees of agglomeration of filler particles above a critical content. Fourier-Transform Infrared Spectroscopy (FTIR) was conducted to reveal the microstructures and chemical composition of as-prepared composite films. The wettability of the films was also determined by the sessile drop method. An increase in contact angle was also observed by the addition of ZnO content from 70.6° to 77.1° compared to pure Cellulose Acetate, which indicated a value of 61.3°. Antibacterial activity against Escherichia coli and Staphylococcus aureus was enhanced after incorporation of ZnO-TiO2 compared with pure CA. The enhanced wettability and antibacterial activity of the prepared films suggest that they could be used for packaging applications.

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Section: Antibacterial Activitymentioning

confidence: 99%

Preparation of Cellulose Acetate Nanocomposite Films Based on TiO2-ZnO Nanoparticles Modification as Food Packaging Applications

Ali¹,

Hameed²

2022

JASN

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“…Researchers found that additional materials could be added to dielectric material systems, such as semiconductor powders, to improve their performance [8], [9]. Random lasers have been used in numerous applications such as uid crystals [10,11], polymer materials [12], [13], human tissues [14], bone tissues [3] and bres [15]. In addition to fewer predicted spectroscopy, a speck-free projection, and a wide range of holographic laser diagnosis are presented [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Characterization of laser dye concentrations in ZnO nanostructures for optimization of random laser emission performance

Haider

Sultan

Haider

et al. 2023

Int. J. Mod. Phys. B

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Many nanoforms of zinc oxide (ZnO) structures can be synthesized, such as spheres, rods, flowers, disks and walls, as scatter centers in random laser. However, nanoflower and nanowire shapes in this work have received particular interest due to their wide range of applications, including biological, medical cancer cell detection, gas sensors, and biosensors. In this paper, we investigate the optical and morphological properties of two-shaped nanoparticles as scatter centers in the laser active medium on the performance emission of a random laser. Fluorescence and absorption spectra show that 10[Formula: see text][Formula: see text]M for R6G dye and [Formula: see text][Formula: see text]cm[Formula: see text] ZnO NPs are the optimal nanocomposite film concentrations for R6G dye. With excitation energies ranging from 3.44[Formula: see text]mJ to 28.34[Formula: see text]mJ and a repetition rate of 2[Formula: see text]Hz, second-harmonic generation Nd: YAG laser Amplified spontaneous emission (ASE) spectra of the nanocomposite films were observed. The results indicated a minimum bandwidth (Full width at half maximum (FWHM)) of 13[Formula: see text]nm at a threshold energy of 8.65[Formula: see text]mJ for ZnO NW (nanowire) nanocomposite films at [Formula: see text][Formula: see text]cm[Formula: see text] with R6G dye at 10[Formula: see text][Formula: see text]M and Poly(methyl methacrylate) (PMMA). The ZnO NF (nanoflower) nanocomposite film had an FWHM of 11[Formula: see text]nm and a threshold energy of 4.8[Formula: see text]mJ at the same concentrations of R6G dye on PMMA.

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Biogenic Silver and Zinc Enhanced MWCNTs: Nano‐Decoration, Characterization, and Antimicrobial Effect

Ünal

2024

ChemistrySelect

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In this study, acid‐treated multi‐walled carbon nanotubes (MWCNTs) were decorated with silver (Ag), zinc (Zn), and Ag@Zn nanoparticles (NPs) synthesized using plant extract for reducing and stabilizing NPs. The nanocomposites were characterized by Scanning electron microscopy (SEM)‐energy‐dispersive X‐ray spectroscopy (EDX), Transmission electron microscopy (TEM), X‐ray diffraction (XRD), Fourier transform infrared spectroscopy (FT‐IR), Raman spectroscopy, and Thermogravimetric analysis (TGA). The stability of functionalized MWCNTs (f‐MWCNTs) and NP‐decorated MWCNTs was visually evaluated for seven days in ethanol. The antimicrobial efficacy against Gram‐positive (Staphylococcus aureus), Gram‐negative (Pseudomonas aeruginosa, Escherichia coli) bacteria, and fungi (Candida albicans) was determined using the agar well diffusion assay. Results indicated that Ag‐MWCNTs and Ag@Zn‐MWCNTs nanocomposites exhibited superior antimicrobial activity against P. aeruginosa and C. albicans compared to other tested microorganisms. Conversely, f‐MWCNTs and Zn‐MWCNTs showed no antimicrobial effects

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Synthesis of Multi-Walled Carbon Nanotubes Decorated with Zinc Oxide Nanoparticles for Removal of Pathogenic Bacterial

Cited by 7 publications

References 7 publications

Preparation of Cellulose Acetate Nanocomposite Films Based on TiO2-ZnO Nanoparticles Modification as Food Packaging Applications

Preparation of Cellulose Acetate Nanocomposite Films Based on TiO2-ZnO Nanoparticles Modification as Food Packaging Applications

Characterization of laser dye concentrations in ZnO nanostructures for optimization of random laser emission performance

Biogenic Silver and Zinc Enhanced MWCNTs: Nano‐Decoration, Characterization, and Antimicrobial Effect

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