Bactericidal activities of Sm2O3/ Sb2O3/graphene oxide loaded cellulose acetate film

Gouda, Mohamed; Khalaf, Mai M.; Elmushyakhi, Abraham; Taleb, Manal F. Abou; El‐Lateef, Hany M. Abd

doi:10.1016/j.jmrt.2022.11.040

Cited by 7 publications

(7 citation statements)

References 44 publications

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“…The LdA micrnoparticles were synthesized by the high‐temperature solid‐state methodology 3 . The top‐down method was then used to prepare the corresponding LdA nanoparticles 10,36,33 . TEM images of LdANPs displayed diameters between 5 and 12 nm (Figure 1).…”

Section: Resultsmentioning

confidence: 99%

“…Figure 8 demonstrates that the LdANPs contribute to EGNFs@PE framework by acting as a stress transmission agent, which could be responsible for the enhanced tensile strength. The stronger coordinative linkages between oxygen on EGNFs@PE and Al(III) can account for the increased tensile strength of EGNFs@PE with raising the LdANPs ratio 33 . Through coordination by aluminum, the oxygen atoms on EGNFs@PE chains are elevated to a higher order, leading to a robust three‐dimensional polymeric network 32…”

Section: Resultsmentioning

confidence: 99%

“…Dataphysics OCA15EC (Stuttgart, Germany) was used to analyze the contacting angles of the EGNFs@PE sheets 33 …”

Section: Methodsmentioning

confidence: 99%

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Preparation of luminescent polyethylene plastic composite nano‐reinforced with glass fibers

El‐Newehy,

Thamer,

Abdulhameed

2024

J of Applied Polymer Sci

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Electrospun glass nanofibers (EGNFs) were prepared to reinforce polyethylene (PE) plastic waste towards the development of photochromic anti‐counterfeiting patterns and long‐persistent photoluminescent materials, such as smart windows and concrete. By physical integration of lanthanide‐doped aluminate (LdA) nanoparticles (NPs) into polyethylene plastic reinforced with EGNFs, a transparent lanthanide‐doped aluminate nanoparticles (LdANPs)/EGNFs@PE sheet was produced. The colorless EGNFs@PE hybrids became green under ultraviolet (UV) rays and greenish‐yellow in a darkened room as proved by CIE Lab and photoluminescence analysis. In the luminescent LdANPs/EGNFs@PE hybrids, the identified photochromism was promptly reversed at low concentrations of LdANPs to designate fluorescence emission. Photoluminescence was maintained with slow reversibility for the high phosphor concentrations to designate afterglow emission. LdANPs exhibit diameters of 5–12 nm, whereas glass nanofibers have diameters of 70–120 nm. The morphologies of LdANPs/EGNFs@PE substrates were studied by energy‐dispersive x‐ray spectroscopy (EDX), scanning electron microscopy (SEM), and x‐ray fluorescence (XRF). The mechanical properties of the prepared polyethylene plastic were enhanced by reinforcement with glass nanofibers as a roughening agent. The photoluminescent substrates showed markedly improved scratch resistance in comparison to LdANPs‐free EGNFs@PE substrate. The obtained luminescence spectra displayed an emission band at 519 nm upon excitation at 365 nm. The results demonstrated that the luminous plastic has improved hydrophobicity and UV shielding upon increasing the LdANPs content.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Preparation of luminescent polyethylene plastic composite nano‐reinforced with glass fibers

El‐Newehy,

Thamer,

Abdulhameed

2024

J of Applied Polymer Sci

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“…With hydroxy and carboxy groups on its surface, graphene oxide (GO), an extremely oxidized and chemically modified graphene nanosheet material, improves the hydrophilicity of the scaffold and is an oxidized carbon layer. [25,26] Chitosan's mechanical qualities can be enhanced by GO nanoparticles thanks to their robust structure, which also offers antibacterial properties. [12] Additionally, GO may interact physically or chemically with various polymers and has excellent water dispersibility.…”

Section: Introductionmentioning

confidence: 99%

“…Magnesium oxide (MgO), has a higher adsorption capacity, [23,24] a high isoelectric point (IEP) of 12.0, and good chemical stability, is known to have several attractive applications, including those as a catalyst, and antibacterial agent, in the remediation of toxic H 2 O, and as additives in refractory materials. With hydroxy and carboxy groups on its surface, graphene oxide (GO), an extremely oxidized and chemically modified graphene nanosheet material, improves the hydrophilicity of the scaffold and is an oxidized carbon layer [25,26] . Chitosan's mechanical qualities can be enhanced by GO nanoparticles thanks to their robust structure, which also offers antibacterial properties [12] …”

Section: Introductionmentioning

confidence: 99%

Improving the Durability of Chitosan Films through Incorporation of Magnesium, Tungsten, and Graphene Oxides for Biomedical Applications

Alaithan,

Khalaf,

Gouda

et al. 2023

Chemistry & Biodiversity

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Bacterial infections that cause chronic wounds provide a challenge to healthcare worldwide because they frequently impede healing and cause a variety of problems. In this study, loaded with tungsten oxide (WO3), Magnesium oxide (MgO), and graphene oxide (GO) on chitosan (CS) membrane, an inexpensive polymer casting method was successfully prepared for wound healing applications. All fabricated composites were characterized by X‐ray powder diffraction (XRD), Fourier transforms infrared spectroscopy (FT‐IR), and thermogravimetric analysis (TGA). A scanning electron microscope (SEM) was used to study the synthesized film samples’ morphology as well as their microstructure. The formed WO3/MgO@CS shows a great enhancement in the UV/VIS analysis with a highly intense peak at 401 nm and a narrow band gap (3.69 eV) compared to pure CS. The enhanced electron‐hole pair separation rate is responsible for the WO3/MgO/GO@CS scaffold's antibacterial activity. Additionally, human lung cells were used to determine the average cell viability of nanocomposite scaffolds and reached 121 % of WO3/MgO/GO@CS nanocomposite, and the IC50 value was found to be 1654 μg/mL. The ability of the scaffold to inhibit the bacteria has been tested against both E. coli and S. aureus. The 4th sample showed an inhibition zone of 11.5±0.5 mm and 13.5±0.5 mm, respectively. These findings demonstrate the enormous potential for WO3/MgO/GO@CS membrane as wound dressings in the clinical management of bacterially infected wounds.

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Investigating the effect of antibacterial cerium oxide nanoparticles embedded in biodegradable PVA/chitosan films for wound healing application: an in-vitro study

Gobi,

Babu,

Rani

et al. 2024

emergent mater.

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Bactericidal activities of Sm2O3/ Sb2O3/graphene oxide loaded cellulose acetate film

Cited by 7 publications

References 44 publications

Preparation of luminescent polyethylene plastic composite nano‐reinforced with glass fibers

Preparation of luminescent polyethylene plastic composite nano‐reinforced with glass fibers

Improving the Durability of Chitosan Films through Incorporation of Magnesium, Tungsten, and Graphene Oxides for Biomedical Applications

Investigating the effect of antibacterial cerium oxide nanoparticles embedded in biodegradable PVA/chitosan films for wound healing application: an in-vitro study

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