Nanocomposite of PVA/PVP blend incorporated by copper oxide nanoparticles via nanosecond laser ablation for antibacterial activity enhancement

El-Kader, M.F.H. Abd; Elabbasy, Mohamed Tharwat; Adeboye, Adeniyi; Menazea, A.A.

doi:10.1007/s00289-021-03975-5

Cited by 34 publications

(14 citation statements)

References 62 publications

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“…The current AgNPs could have created ROS, leading to the inhibition of most pathogenic bacteria [18,43]. The results were compared with [44][45][46][47][48][49][50].…”

Section: Antibacterial Testsmentioning

confidence: 99%

Morphological, Optical, Electrical Characterizations and Anti- Escherichia coli Bacterial Efficiency (AECBE) of PVA/PAAm/PEO Polymer Blend Doped with Silver NPs;

Abdali¹,

Abass²,

Al‐Bermany³

et al. 2022

Nano BioMed ENG

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In the current research, silver nanoparticles (AgNPs) were mixed with a polymer blend to enhance their optical and electrical properties and antibacterial efficiency. A novel approach via introducing AgNPs into the polymer blend could improve the physical and antibacterial characteristics of the nanocomposites (NCs). In the loading process, two different amounts of AgNPs were respectively encapsulated with polyvinyl alcohol (PVA), polyacrylamide (PAAm) and polyethylene oxide (PEO) polymeric blend via casting method. The prepared films were characterized by X-ray, optical microscope (OM), scanning electron microscopy (SEM), Fourier transformation infrared (FTIR) and UV/Visible. The OM and SEM images showed that the AgNPs were well diffused inside the polymer blend with some weak aggregations. The optical properties were enhanced after doping. The NCs films absorbed UV-ray at (λ=220 nm). The indirect energy gap decreased after loading from 3.80 to 3.10 eV but the direct energy gap decreased from 4.25 to 3.75 eV. The AC electrical properties were studied in the frequency range between 100 Hz to 5 MHz. The dielectric constant and loss of NC films were decreased with the increase of AgNPs, while the electrical conductivity increased. The inhibition zone diameters of Escherichia coli bacteria increased with the increasing of AgNPs contents.

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“…The current AgNPs could have created ROS, leading to the inhibition of most pathogenic bacteria [18,43]. The results were compared with [44][45][46][47][48][49][50].…”

Section: Antibacterial Testsmentioning

confidence: 99%

Morphological, Optical, Electrical Characterizations and Anti- Escherichia coli Bacterial Efficiency (AECBE) of PVA/PAAm/PEO Polymer Blend Doped with Silver NPs;

Abdali¹,

Abass²,

Al‐Bermany³

et al. 2022

Nano BioMed ENG

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“…Figure (4a) shows PVP characteristic absorption bands of C=O stretching vibration at 1660 cm −1 [ 31–33 ]. Stretching and scissoring vibrations of the CH 2 -CH 2 group at 2956 and 1448 cm −1 and a broad absorption band of OH stretching vibrations at 3446 cm −1 are recognized [ 34 , 35 ]. Figure (4b) shows CMC characteristic bands for OH stretching and a small band for C-H stretching at 3430 cm −1 and 2909 cm −1 , respectively, while the strong band at 1605 cm −1 is related to the COO- group.…”

Section: Resultsmentioning

confidence: 99%

Preparation and physicochemical studies on polymeric nanocomposites containing copper oxide nanoparticles

Alsheheri

Alamshany

Abdelaal

2023

Designed Monomers and Polymers

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The current work aims to modify carboxymethyl cellulose (CMC) and polyvinylpyrrolidone (PVP) with copper oxide nanoparticles (CuO NPs) to obtain new nanocomposites of CMC, PVP, and CuO NPs (CMC/PVP/CuO NPs) with distinguished properties. The interaction between the components of the nanocomposites was suggested and supported by using Gaussian 09W 07 Software and the average particle size was manually determined from TEM images using ImageJ software developed at the National Institutes of Health (NIH). The preparation methods were optimized, and the obtained nanocomposites were characterized with suitable techniques to explore their characteristics and to help expect or predict the suitable fields of applications.

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“…CuO NPs have many corners and edges, high surface area, and many reactive moieties [13] . In addition, CuO NPs, which have a crystal structure, are antibacterial agents [14] . It has been reported that the antibacterial effect of CuNPs is associated with metal ions released from nanoparticles [15] .…”

Section: Introductionmentioning

confidence: 99%

“…[13] In addition, CuO NPs, which have a crystal structure, are antibacterial agents. [14] It has been reported that the antibacterial effect of CuNPs is associated with metal ions released from nanoparticles. [15] The small size and high surface area/volume ratio of CuNPs increase the antibacterial effect.…”

Section: Introductionmentioning

confidence: 99%

Potential Wound Dressing with Antibacterial Effect from Cross‐Linked Polyvinyl Alcohol/Sodium Caseinate/CuO NP Electrospun Mat

Samatya Yilmaz,

Uzuner,

Aytac

2024

ChemistrySelect

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In this study, nanofibers were produced from Polyvinyl alcohol (PVA)/Sodium Caseinate (SoCAS)/Copper Oxide nanoparticle (CuO NP) mixtures by electrospinning method. Nano surfaces were cross‐linked by immersion in a Glutaraldehyde (GLA) bath. Electrospun mats are designed as modern wound dressings with antibacterial effects for exuding wounds. The cross‐linking process by dipping has thickened a bit of nanofiber diameter by creating a coating effect on fiber surface. The increase of acetal bonds and decrease of hydroxyl groups in structure by cross‐linking have improved thermal properties of nanofibers. The increase in melting enthalpy has also improved mechanical properties of mats. The mixture of semicrystalline PVA and SoCAS has increased breaking stress of nanostructure. Besides, the CuO NP additive improved the breaking strength and elongation behavior of mats. It was stated that cross‐linked nanofibers swelled without dissolving in distilled water and contained water‐repellent groups. The CuO NP supplementation delayed the growth of Escherichia coli (E. coli). However, it was observed that antibacterial effect against Staphylococcus aureus (S. aureus) was higher than against E. coli. It was reported that 5 % CuO NP‐doped nanofiber can be used as a wound dressing, owing to its high fibroblast cell viability at 24th and 48th hours and 99.48 % antibacterial activity against S. aureus.

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Nanocomposite of PVA/PVP blend incorporated by copper oxide nanoparticles via nanosecond laser ablation for antibacterial activity enhancement

Abstract: Polyvinyl Alcohol (PVA)/Polyvinyl Pyrrolidone (PVP) blend has been treated with various ratios of copper oxide nanoparticles (CuO NPs) via laser ablation. The spectroscopic properties of the synthesized nanocomposites were investigated by different routes. XRD confirmed the miscibility

Cited by 34 publications

References 62 publications

Morphological, Optical, Electrical Characterizations and Anti- Escherichia coli Bacterial Efficiency (AECBE) of PVA/PAAm/PEO Polymer Blend Doped with Silver NPs;

Morphological, Optical, Electrical Characterizations and Anti- Escherichia coli Bacterial Efficiency (AECBE) of PVA/PAAm/PEO Polymer Blend Doped with Silver NPs;

Preparation and physicochemical studies on polymeric nanocomposites containing copper oxide nanoparticles

Potential Wound Dressing with Antibacterial Effect from Cross‐Linked Polyvinyl Alcohol/Sodium Caseinate/CuO NP Electrospun Mat

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