Synthesis, characterization and antimicrobial activity of colloidal copper nanoparticles stabilized by cationic thiol polyurethane surfactants

Sabbah, I. A.; Zaky, Mohamed F.; Hendawy, Mostafa E.; Negm, Nabel A.

doi:10.1007/s10965-018-1649-5

Cited by 8 publications

(6 citation statements)

References 39 publications

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“…Antibacterial Screening. The bacterial strains E.coli (gram-negative) and S. aureus (gram-positive) were inoculated in nutrient broth in an orbital shaker maintained at a constant temperature of 37 °C for 24 h and used to test the antibacterial efficacy of the root extract [19]. Agar well diffusion was performed to find the antibacterial susceptibility.…”

Section: Transmission Electron Microscopymentioning

confidence: 99%

Green Synthesis of Copper Nanoparticles Using Withania somnifera and Its Antioxidant and Antibacterial Activity

Shanmugapriya¹,

Reshma²,

Srinidhi³

et al. 2022

Journal of Nanomaterials

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This study employed green chemistry to synthesize copper nanoparticles (CuNPs) using fresh root extract of Withania somnifera. The size, shape, morphology, and stability of resultant CuNPs were investigated by UV-Vis spectroscopy, FTIR, transmission electron microscopy (TEM), and energy-dispersive spectrophotometer. Crude extracts were assessed phytochemically to determine the presence of alkaloids, flavonoids, phenols, saponins, steroids, and tannins. The UV-Vis absorption spectra show maximum absorption at 330 nm, and FTIR showed the presence of biological molecules responsible for reducing Cu+ ions. In TEM and EDS analyses, the average diameter of the synthesized NPs was found to be 6.28 ± 1.13 nm . The crystal structure of synthesized nanoparticle was determined using XRD analysis and showed its peak at 36.34°, 43.33°, 50.47°, and 73.57°, which corresponds to the cubic lattice of copper. The synthesized nanoparticles (NPs) were tested for their in vitro antimicrobial activity against bacterial strains E. coli and S. aureus by the agar well diffusion method which showed higher efficiency against S. aureus. The antioxidant activity of the synthesized NPs was evaluated by DPPH assay, and the percentage of inhibition was found to be 62% at the concentration of 400 μg/ml and the IC50 value was 51.53 μg/ml. The present investigation suggests that the biosynthesized CuNPs showed prominent antibacterial and free radical scavenging potential. The result proved that root extract of W. somnifera could be applied for synthesis of nanoparticle CuNPs with high uniform particle size along with potent biological activity.

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Section: Transmission Electron Microscopymentioning

confidence: 99%

Green Synthesis of Copper Nanoparticles Using Withania somnifera and Its Antioxidant and Antibacterial Activity

Shanmugapriya¹,

Reshma²,

Srinidhi³

et al. 2022

Journal of Nanomaterials

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“…have been reported. The chemical synthesis includes colloidal [ 40 , 41 ], electrochemical [ 42 , 43 ], Chemical reduction [ 44 ], and photochemical [ 45 ] methods. The toxicity and relatively high material cost of these methods restricted their use in a better way.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of copper nanoparticles using Celastrus paniculatus Willd. leaf extract and their photocatalytic and antifungal properties

Mali

Dhaka

Githala

et al. 2020

Biotechnology Reports

172

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“…AgNPs possess a solid affinity for bacterial cell surfaces and can penetrate microbial bodies, eventually converting to silver ions (Ag + ) within the cytoplasm to disrupt intracellular structures. [33][34][35] Many other studies can be found on literature regarding the antiviral capacity against COVID-19. [36][37][38][39][40]…”

Section: Antibacterial Activitymentioning

confidence: 99%

Production of a thermoplastic polyurethane/silver nanoparticles 3D filament with antiviral properties to combat SARS‐CoV‐2

Agnol,

Ornaghi,

Ernzen

et al. 2023

Polymer Engineering & Sci

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Antiviral agents present a propitious alternative to prevent pathogen transmission on various surfaces. In the present study, we successfully synthesized nanocomposites of thermoplastic polyurethanes with silver nanoparticles (TPU/AgNPs) via extrusion. To comprehensively evaluate their potential in antiviral applications, we conducted a thorough analysis of the nanocomposites, encompassing investigations into their chemical structure, physicochemical and mechanical properties, cytotoxicity, antibacterial activity, and antiviral efficacy. Remarkably, the incorporation of AgNPs had no discernible impact on the chemical structure of the materials, ensuring the preservation of essential properties. Moreover, the nanoparticles exhibited remarkable stability within the TPU matrix, with no detectable leaching of AgNPs observed in any of the studied nanocomposites. The nanocomposites demonstrated exceptional antibacterial efficiency, effectively inhibiting bacterial growth while concurrently revealing no cytotoxic effects in vitro for BALB/3 T3 cells. The antiviral performance against SARS‐CoV‐2 proved highly potent, achieving inactivation yields surpassing 99.0%. Leveraging these advantageous attributes, we harnessed the potential of TPU/AgNPs nanocomposites to produce various versatile products, such as cell phone cases and 3D‐printing filaments. In conclusion, this study underscores the immense promise of antiviral TPU/AgNPs nanocomposites, offering new insights into the domains of materials science and infection control, contributing to a healthier and safer future.

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Synthesis, characterization and antimicrobial activity of colloidal copper nanoparticles stabilized by cationic thiol polyurethane surfactants

Cited by 8 publications

References 39 publications

Green Synthesis of Copper Nanoparticles Using Withania somnifera and Its Antioxidant and Antibacterial Activity

Green Synthesis of Copper Nanoparticles Using Withania somnifera and Its Antioxidant and Antibacterial Activity

Green synthesis of copper nanoparticles using Celastrus paniculatus Willd. leaf extract and their photocatalytic and antifungal properties

Production of a thermoplastic polyurethane/silver nanoparticles 3D filament with antiviral properties to combat SARS‐CoV‐2

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