Functional Copolymer/Organo-MMT Nanoarchitectures. XXII. Fabrication and Characterization of Antifungal and Antibacterial Poly (Vinyl Alcohol-co-Vinyl Acetate/ODA-MMT/AgNPs Nanofibers and Nanocoatings by e-Spinning and c-Spinning Methods

Rzayev, Zakir M. O.; Erdönmez, Demet; Erkan, Kübra; Şimşek, Murat; Bunyatova, Ulviye

doi:10.1080/00914037.2014.936599

Cited by 21 publications

(16 citation statements)

References 28 publications

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“…A). The characteristic absorption bands at 2945 and 2914 cm −1 were associated with aliphatic CH stretching from CH 2 and CH groups of octadecylamine intercalant in ODA‐MMT organoclay and from backbone chain of PVA, respectively . Bending bands of these groups appeared at 1427 and 1374 cm −1 (Fig.…”

Section: Resultsmentioning

confidence: 93%

“…In this system, silver salts easily transferred to nanoparticle form via reducing and stabilized on matrix/partner polymer chains during electrospinning process. In situ generated AgNPs exhibited finely dispersed and self‐assembled ionized sites on the fiber surfaces, accelerated phase separation processing, and improved the distribution and size parameters of nanofibers . Nguyen et al fabricated AgNPs dispersed in PVA nanowire mats by microwave irradiation and electrospinning.…”

Section: Resultsmentioning

confidence: 99%

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Novel colloidal nanofiber electrolytes from PVA-organoclay/poly(MA-alt-MVE), and their NaOH and Ag-carrying polymer complexes

et al. 2015

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Novel multifunctional polymer nanofiber electrolytes with covalence crosslinked structures from various solution blends of reactive intercalated poly(vinyl alcohol)/octadecylamine montmorillonite (as a matrix polymer), poly(maleic anhydride‐alt‐methyl vinyl ether) (as a partner polymer) and their NaOH‐absorbing and Ag‐carrying polymer complexes were fabricated via electrospinning. Chemical, physical, morphological, and electrical properties of nanofiber structures were investigated by FTIR, XRD, SEM, and electrical analysis methods. Ag precursors in fiber composites significantly improved phase separation processing, fiber morphologies, diameter distributions, and electrical properties of the fibers. In situ generation of Ag nanoparticles and their distribution on nanofiber surfaces during fiber formation occurred via complex formation between silver cations and electronegative functional groups from both matrix and partner polymers as stabilizing/reducing agents. Electrical resistance and conductivity strongly depended on matrix/partner polymer ratios and absorption time of NaOH solution on nanofibers. Addition of NaOH changed the electrical properties of fiber structures from almost dielectric state to excellent conductivity form. The fabricated unique nanofiber electrolytes are promising candidates for applications in power and fuel cell nanotechnology, electrochemical, and bioengineering processes as reactive semiconductive platforms. POLYM. ENG. SCI., 56:204–213, 2016. © 2015 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Novel colloidal nanofiber electrolytes from PVA-organoclay/poly(MA-alt-MVE), and their NaOH and Ag-carrying polymer complexes

et al. 2015

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“…The electrospinning (and centrifugal spinning) of poly(vinyl alcohol-co-vinyl acetate)/octadecyl aminemontmorillonite yielded general purpose nanocomposites with silver nanoparticles with antifungal and antimicrobial activity. 24 Silver ions and silver nanoparticles were compared in antimicrobial ethylene vinyl alcohol copolymer fibers. It was found that in thermally annealed fibers, silver ions were partially transformed into nanoparticles homogeneously distributed along the fibers, producing a substantial decrease in metal release rate.…”

Section: Antimicrobial Materialsmentioning

confidence: 99%

Bioactive Applications for Electrospun Fibers

2016

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Electrospinning is a versatile technique providing highly tunable nanofibrous nonwovens. Many biomedical applications have been developed for nanofibers, among which the production of antimicrobial mats stands out. The production of scaffolds for tissue engineering, fibers for controlled drug release, or active wound dressings are active fields of research exploiting the possibilities offered by electrospun materials. The fabrication of materials for active food packaging or membranes for environmental applications is also reviewed. We attempted to give an overview of the most recent literature related with applications in which nanofibers get in contact with living cells and develop a nano-bio interface.

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“…However, the mechanisms of antimicrobial actions of Ag + -carrying polymer layered silicate nanocomposites and their Ag-nanoparticles incorporated nanomaterials (polymer coatings and nanofibers) depend on many structural factors including: (1) physical and chemical interfacial interactions of Ag-nanoparticles and functional groups of the polymer matrix with membranes containing DNA and proteins, (2) catalytic effect of Ag + ions and other metal cations from silicate layers in the degradation process of membrane structure, (3) destroying the permeability of the bacterial membranes, (4) depressing the activity of some membranous enzymes, and (5) completely destroying the self-assembled structure of microorganisms. Moreover in our resent study, the antimicrobial and antifungal activity of silver-carrying PVA/ ODA-MMT clay nanofiber composites significantly improved by using organoclay in polymer compositions as a nanofiller because of its high surface area, absorptive and ion exchange capacities, as well as in situ generation of AgNPs from Ag-carrying polymer complexes during electrospinning process as a novel method to synthesize silver nanoparticles onto surface of nanofibers as bioactive platforms [45,46]. Similar effects of mineral clays were observed for the non-polymer systems contained individual Ag + and Cu 2+ ions [45][46][47].…”

mentioning

confidence: 99%

“…Moreover in our resent study, the antimicrobial and antifungal activity of silver-carrying PVA/ ODA-MMT clay nanofiber composites significantly improved by using organoclay in polymer compositions as a nanofiller because of its high surface area, absorptive and ion exchange capacities, as well as in situ generation of AgNPs from Ag-carrying polymer complexes during electrospinning process as a novel method to synthesize silver nanoparticles onto surface of nanofibers as bioactive platforms [45,46]. Similar effects of mineral clays were observed for the non-polymer systems contained individual Ag + and Cu 2+ ions [45][46][47]. However, antimicrobial, antifungal and anticancer properties of the Ag-nanoparticles formed in situ processing during the synthesis and annealing of polymer layered silicate colloidal materials has not been investigated.…”

mentioning

confidence: 99%

Novel colloidal poly(MA-alt-1-dodecene)-g-PEO/ODA-MMT/AgNPs nanohybrid composites as antimicrobial, antifungal and anticancer platforms

Demircan¹,

Rzayev²,

Salimi³

2018

Express Polym. Lett.

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It is crucial to prevent microbial and viral infections as a results of microbial contamination, epidemiological factors, and infection risks in many areas, especially in clinics, hospital, food packaging sector, and dental equipments. Therefore, attention of many researchers was focused on the fabrication and application of a new generation of functional polymer nanostructures, and polymer-biopolymer/inorganic nanofiller hybrid composites with desired properties such as antimicrobial and superhydrophobicity [1][2][3][4][5][6].Among them, silver nanomaterials include silver nanoparticles, stabilized silver salts, silver-dendrimers, silver-polymer and metal oxide composites, and activated carbon materials demonstrated antibacterial effect against high toxic organisms [7]. In addition, silver-enhanced zeolite, antibacterial polymer thin films containing silver cations-zeolite additives can be also included into this classification [8]. The effect of synthetic and biopolymer based surfactants on the stability and bioactivity of silver nan particles were investigated. Additionally, the antibacterial activity Abstract. This work presents a new approach to synthesize the colloidal ODA-MMT-poly(maleic anhydride-alt-1-dodecene)-g-α,ω-methoxyhydroxyl-PEO/silver nanoparticles (AgNPs) nanohybrid composites (NHC) using the following synthetic pathways: (1) complex-radical alternating copolymerization of maleic anhydride with 1-dodecene α-olefin comonomer, (2) grafting of PEO onto alternating copolymer through esterification, (3) intercalating a copolymer-g-PEO between organoclay layers via complex formation of maleate carboxyl with octadecyl amine, and (4) in situ generation of AgNPs in polymer nanocomposite by annealing method under vacuum. The obtained multifunctional NHCs with different contents of AgNPs were characterized by UV spectroscopy, ζ-potential and size analysis methods. It was demonstrated that annealing of the colloidal NHC is accompanied with in situ generation of stable and partially protonated AgNPs due to specific reducing and stabilizing effects of multifunctional matrix polymer contained positively charged reactive and bioactive sites. Antibacterial and antifungal activities against Gram-negative and Gram-positive bacteria and fungal microorganism were investigated. The cytotoxic, apoptotic and necrotic effects in NHC/L929 fibroblast cells systems were evaluated. The synthesized watersoluble, biocompatible, and bioactive colloidal NHCs are promising candidate for a wide-range of applications in air filtration, food packaging systems, bioengineering, especially in tissue regeneration and nanomedicine.

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Functional Copolymer/Organo-MMT Nanoarchitectures. XXII. Fabrication and Characterization of Antifungal and Antibacterial Poly (Vinyl Alcohol-co-Vinyl Acetate/ODA-MMT/AgNPs Nanofibers and Nanocoatings by e-Spinning and c-Spinning Methods

Cited by 21 publications

References 28 publications

Novel colloidal nanofiber electrolytes from PVA-organoclay/poly(MA-alt-MVE), and their NaOH and Ag-carrying polymer complexes

Novel colloidal nanofiber electrolytes from PVA-organoclay/poly(MA-alt-MVE), and their NaOH and Ag-carrying polymer complexes

Bioactive Applications for Electrospun Fibers

Novel colloidal poly(MA-alt-1-dodecene)-g-PEO/ODA-MMT/AgNPs nanohybrid composites as antimicrobial, antifungal and anticancer platforms

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