Ultrasound‐Assisted Dispersion of Metal Nanoparticles on Clay for Reduction of Organic Pollutants and Antimicrobial Activities

Applied Organometallic Chemistry, Journal Year: 2025, Volume and Issue: 39(6)

Published: May 8, 2025

ABSTRACT Water pollution by persistent dyes and bacteria has become one of the major environmental concerns. One most widely used strategies is use supported metal nanoparticles (MNPs) to remove a wide variety dyes. This work concerns dispersion MNPs (M = Ag, Zn, Cu) on kaolin clay using ultrasonic irradiation. The resulting solids were as catalysts reduce methylene blue (MB), methyl orange (MO), G (OG) in simple binary system. obtained results showed that irradiation produced good with ultrafine sizes. According XPS TEM analysis, Cu, Zn) well formed. Catalytic tests AgNPs‐modified (K‐Ag) was efficient compared other modified ZnNPs CuNPs. In all tests, K‐Ag catalyst more MB dye than azo It shown reduction influenced concentration starting reactants, mass catalyst, nature used. rate constants calculated be 83.10 −4 24.10 s −1 for MO dyes, respectively. For system containing mixture selective dye. reuse without losing its performance. Antibacterial applications K‐Cu material overall bacteria.

Language: Английский

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Spectral and cytotoxicity studies of hybrid silver nanoparticles in human lymphocytes

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Journal Year: 2025, Volume and Issue: 340, P. 126360 - 126360

Published: May 9, 2025

Language: Английский

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Green Synthesis of Multifunctional Silver@Graphene Oxide Nanohybrid for Accelerated Wound Healing and Biomedical Applications

Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: unknown, P. 142588 - 142588

Published: May 1, 2025

Language: Английский

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Insight into Romanian Wild-Grown <i>Heracleum sphondylium</i>: Development of a New Phytocarrier Based on Silver Nanoparticles with Antioxidant, Antimicrobial and Cytotoxicity Potential

Published: Aug. 27, 2024

Background: Heracleum sphondylium, a medicinal plant used in Romanian ethnopharmacology, proved to have remarkable biological activity. The escalating concerns surrounding antimicrobial resistance led special attention new efficient agents based on plants and nanotechnology. We report the preparation of novel, simple phytocarrier that harnesses bioactive properties H. sphondylium silver nanoparticles (HS-Ag system). Methods: low-metabolic profile was determined through gas chromatography–mass spectrometry electrospray ionization–quadrupole time-of-flight–mass spectrometry. morphostructural innovative were analyzed by X-ray diffraction, Fourier-transform infrared spectroscopy, Raman dynamic light scattering, scanning electron microscopy, energy-dispersive spectroscopy. antioxidant activity evaluated using total phenolic content, ferric reducing power, 2,2-diphenyl-1-picrylhydrazyl (DPPH) vitro assays. screening against Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa, Escherichia coli conducted agar well diffusion method. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay estimated potential cytotoxicity normal human dermal fibroblasts (NHDF) cervical cancer (HeLa) cells. Results: A 88 biomolecules detected, such as terpenoids, flavonoids, acids, coumarins, phenylpropanoids, iridoids, amino phytosterols, fatty acids. HS-Ag heightened efficacy suppressing growth all tested bacterial strains compared exhibited significant inhibition HeLa cell viability. Conclusions: system holds promise for wide range medical applications. data confirms capacity augment pertinent theoretical understanding field agents.

Language: Английский

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Impeding microbial biofilm formation and Pseudomonas aeruginosa virulence genes using biologically synthesized silver Carthamus nanoparticles

Microbial Cell Factories, Journal Year: 2024, Volume and Issue: 23(1)

Published: Sept. 5, 2024

Language: Английский

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