Fabrication of acrylic modified surface of polyamide 6/CaO electrospun nanofibrous membrane for effective dye removal

Sobh, Rokaya Aly; Ekram, Basma; Mohamed, Wael S.

doi:10.21608/ejchem.2019.19498.2187

Cited by 5 publications

(2 citation statements)

References 27 publications

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“…PA6 and PA6/CaO electrospun nanofibrous membranes were successfully prepared by electrospinning polymer solution with PA6 concentration of 30% (wt/v) and CaO concentration of 1% (wt/wt). Previously, it was revealed that at those concentrations, smooth and continuous nanofibers form, resulting in a slight increase in nanofiber diameters [24].…”

Section: Resultsmentioning

confidence: 99%

Preparation, Characterization and Water Treatment Application of Electro-spun Polyamide 6 Nanocomposite

Ahmed¹,

Mohamed²,

Hamouly

et al. 2022

Egypt. J. Chem.

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This study aims to synthesize Polyamide 6 nanofibrous membrane of low molecular weight (PA6) using an electrospinning technique with a concentration of 30% (wt/v) and Polyamide 6 nanofibers containing calcium oxide nanoparticles (PA6/CaO), which were obtained with a CaO concentration of 1% (wt/wt). Scanning electron microscopy (SEM) was used to examine the structure of the electrospun nanofibers, which showed smooth and continuous electrospun nanofibers with a nanofibrous diameter of around 53 nm, and CaO nanoparticles were distributed through the nanofibers with a slight increase in the nanofibrous diameter.The surfaces of the obtained PA6 and PA6/CaO nanofibers were modified by grafting polymerization with acrylic acid AA, with various synthetic parameters such as reaction temperature, monomer concentration, initiator concentration, and emulsifier concentration. The obtained results show that as the concentrations of monomer, initiator, and temperature increased, the grafting yield increased at first, then decreased, but it kept increasing as the emulsifier concentration was increased. The characterization of the obtained graft nanofibers was carried out using Fourier Transform Infrared Spectroscopy (FT-IR), Thermo Gravimetric Analysis (TGA), and Differential Scanning Calorimetry (DSC). The effects of pH, initial concentration, temperature, and contact time on the removal of heavy metals (Co 2+ , Cr 6+ ) from water solution were investigated, and it was observed that a polyamide6/CaO nanofibrous membrane grafted with AA could adsorb Co 2+ more than Cr 6+ . While the optimum conditions for the removal were observed at an initial concentration of 10 ppm, pH 5 at 150 min under 30 °C.

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Section: Resultsmentioning

confidence: 99%

Preparation, Characterization and Water Treatment Application of Electro-spun Polyamide 6 Nanocomposite

Ahmed¹,

Mohamed²,

Hamouly

et al. 2022

Egypt. J. Chem.

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“…Polyamide (Nylon) is a cheap polymer, which consists of amide groups separated by methylene sequences that can be electrospun with good mechanical, thermal, and chemical properties . To enhance the biodegradability of polyamide, it was blended with chitosan that has antibacterial and antiviral properties besides its biodegradability, biocompatibility, and nontoxicity. − Moreover, nanoparticles (NPs) were shown to enhance the properties of polymeric materials due to their high surface area-to-volume ratio.…”

Section: Introductionmentioning

confidence: 99%

Antiviral Electrospun Polyamide Three-Layered Mask Filter Containing Metal Oxide Nanoparticles and Black Seed Oil

et al. 2022

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Upon the tremendous spread of coronavirus, there is a need to develop biodegradable, multifunctional, antiviral masks that can be safely used without polluting the environment as conventional surgical masks do. In this study, a three-layered mask filter is designed and fabricated. The first two layers contain electrospun polyamide with dispersed nanoparticles (NPs) of TiO 2 and ZnO prepared via breakdown anodization. The third layer is composed of Nigella sativa oil (black seed oil) electrospun with polyamide and blended with chitosan to form an effective antiviral three-layered mask filter. The morphological characterization revealed the nanoscale features of the fabricated nanofibers with the ZnO and TiO 2 NPs being embedded in the polymeric matrix. The specimens showed good wettability, which is necessary for virus attachment and its subsequent decay. The assembled mask has shown very good mechanical properties. The cytotoxicity results revealed that the proposed mask filter has less cytotoxic effect on the A549 cell line than the commercial KN95 mask filter with maintaining a cell viability of 65.3%. The antiviral activity test showed a variable virucidal effect against human adenovirus on A549 cells. The proposed mask showed the highest effect on the virus followed by PA-ZnO and PA-TiO 2 films, which supports the assumption that the used NPs may have broad and promising effects on viruses when combined with the electrospun films.

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Fabrication and Evaluation of Polyacrylate Nanocomposites Embedded With Metal Oxides as Enhanced Multipurpose Nanocarriers for Long‐Term Anti‐Inflammatory and Amazing Antimicrobial Properties

Sobh,

Magar,

Fahim

et al. 2024

Applied Organom Chemis

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The design of super‐antimicrobially active multipurpose nanocarriers as polymeric nanocomposites embedded with metal oxides with sustained drug release is beneficial in medical treatment for controlling inflammation and targeting a wide range of pathogenic microorganisms. Brilliant metal oxide nanoparticles (MOx) involving selenium dioxide, titanium dioxide, and vanadium pentoxide were well prepared in good yields, and their morphologies and structures were specified. Then they were embedded in copolymeric nanocomposites through in situ microemulsion polymerization of (E)‐2‐cyano‐N‐cyclohexyl‐3‐(dimethylamino)acrylamide (CHAA) with methyl methacrylate (MMA), dimethylaminoethyl methacrylate (DMAEMA), and acrylic acid (AA). In addition, ibuprofen was then loaded into the synthesized polymers and their nanocomposites to achieve high drug entrapment efficiency EE%, and its release behavior was studied in various simulated fluids. The produced drug‐loaded polymers and their nanocomposites were characterized using Fourier‐transform infrared spectroscopy (FT‐IR), transmission electron microscope (TEM), X‐ray diffraction (XRD), and thermogravimetric analysis (TG). Well‐defined nanospheres of polymeric‐metal oxide nanocomposites were generated in a size range of 50 nm, with ibuprofen loaded at a high encapsulation efficiency of approximately 97%. In vitro drug release was inspected for the polymer and its nanocomposites revealing that the presence of metal oxide nanoparticles resulted in prolonged and sustained release behavior for wound dressing. The antimicrobial study based on the zone of inhibition against various pathogenic microorganisms showed excellent activity against Bacillus cereus, Staphylococcus aureus, Escherichia coli, Helicobacter pylori, and Candida albicans. These findings validate the potential of these nanocomposites to serve as a viable upcoming antimicrobial agent for the treatment of human ailments.

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Fabrication of acrylic modified surface of polyamide 6/CaO electrospun nanofibrous membrane for effective dye removal

Cited by 5 publications

References 27 publications

Preparation, Characterization and Water Treatment Application of Electro-spun Polyamide 6 Nanocomposite

Preparation, Characterization and Water Treatment Application of Electro-spun Polyamide 6 Nanocomposite

Antiviral Electrospun Polyamide Three-Layered Mask Filter Containing Metal Oxide Nanoparticles and Black Seed Oil

Fabrication and Evaluation of Polyacrylate Nanocomposites Embedded With Metal Oxides as Enhanced Multipurpose Nanocarriers for Long‐Term Anti‐Inflammatory and Amazing Antimicrobial Properties

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