Synthesis, characterization and antimicrobial activity of modified cellulose-graft-polyacrylonitrile with some aromatic aldehyde derivatives

El‐Khouly, A. S.; Kenawy, El‐Refaie; Safaan, A. A.; Takahashi, Yoshiaki; Hafiz, Y. A.; Sonomoto, Kenji; Zendo, Takeshi

doi:10.1016/j.carbpol.2010.07.047

Cited by 33 publications

(15 citation statements)

References 48 publications

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“…As indicated, the pure PANF material produced signals at 29.7, 122.1,a nd 172.5 ppm corresponding to the backbonec arbon atoms, the cyano carbon atoms, and the ester carbonyl carbon atoms (Figure 7a). [34,35] As expected, following amination,t he signal corresponding to the ester carbonylc arbon atom disappears, and an ew signalo riginating from the amide carbon atom appearsa ta pproximately 174.5 ppm. In addition, strong carbon signals corresponding to the NHC moieties can be seen at 137.0 and 130.1 ppm (Figure 7d), with long reduction times leading to the disappearance of the NHC structure ( Figure 7c).…”

Section: Resultssupporting

confidence: 70%

N‐Heterocyclic Carbene‐Protected Ag Nanoparticles Immobilized on Polyacrylonitrile Fiber as Efficient Catalysts for a Three‐Component Coupling Reaction

Cao

Tian

2018

Chemistry An Asian Journal

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Metal nanoparticles (NPs) are routinely stabilized by the introduction of capping agents or their distribution on supports. In this context, we report the preparation and characterization of N-heterocyclic carbene (NHC)-stabilized silver NPs supported on polyacrylonitrile fiber (PANF). As a result, Ag loadings of up to 8 % and particle sizes of 11.0±3.2 nm were achieved. This novel nanocomposite catalyst demonstrated high activity in addition to excellent stability and reusability in the three-component reaction between alkynes, haloalkanes, and amines. In this system, the AgNPs were stabilized by both a support effect and a ligand effect. The unique NHC-protected AgNP structure and the PANF support provide a synergistic effect in the deprotonation of C -H bonds, with turnover numbers of up to 3500. This catalyst was successfully recycled over eight runs without any significant loss in activity, and with no significant aggregation of the AgNPs. Moreover, implementation of a flow system with PANF-NHC@Ag as catalyst leads to an efficient productivity of 57 mmol h .

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Section: Resultssupporting

confidence: 70%

N‐Heterocyclic Carbene‐Protected Ag Nanoparticles Immobilized on Polyacrylonitrile Fiber as Efficient Catalysts for a Three‐Component Coupling Reaction

Cao

Tian

2018

Chemistry An Asian Journal

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“…The plates were put into an incubator at 37 8C over 24 hours. The antimicrobial capacity can be evaluated by measuring the diameter of the inhibition zones (El-Khouly et al, 2011).…”

Section: Saravanan and Ravikumarmentioning

confidence: 99%

“…With the growth of public health diseases and cross-infection caused by the microbes, uses of antibacterial textile fibers have increased in medicinal applications. The antimicrobial activities of the resulting cellulose derivatives were studied extensively due to their stabilities and efficiencies in inactivating harmful bacteria (El-Khouly et al, 2011). There are few illustrations in the literature where chelating groups in cellulose backbone were used for the removal of metal ions from the aqueous solutions and antibacterial action.…”

Section: Introductionmentioning

confidence: 99%

Renewable Modified Cellulose Bearing Chelating Schiff Base for Adsorptive Removal of Heavy Metal Ions and Antibacterial Action

Saravanan

Ravikumar²

2017

Water Environment Research

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A novel approach toward chemically modified cellulose bearing active chelating Schiff base with hydroxyl group (Cell-Hy) was synthesized. The modified cellulose was examined for its heavy metal ion uptake potential from aqueous solution. The chemical and structural features of the adsorbent were characterized by Fourier transform infrared spectroscopy (FT-IR), solid state 13C-NMR, Scanning Electron Microscopy (SEM), and energy dispersive analysis of X-ray (EDAX) observations. The experimental conditions and adsorption parameters, including pH, initial metal ion concentration, adsorbent dosage, temperature, and contact time were optimized for the removal of Cu(II) and Pb(II) ions. Kinetic parameters, equilibrium adsorption capacities, and correlation coefficients for pseudo-first-order, pseudo-second-order, and intraparticle diffusion models were carried out. The data obtained from the adsorption of Cu(II) and Pb(II) onto Cell-Hy were subjected to Langmuir and Freundlich isotherm models. Thermodynamic parameters have also been evaluated. The antibacterial activity of modified cellulose was tested toward specific bacterial species.

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“…Quaternary ammonium compounds, N ‐halamines, chitosan, polybiguanides, triclosan, nanoparticles of noble metals and metal oxides, and bioactive plant‐based products have been applied to textiles . Increasingly, studies are focusing on the synthesis of antimicrobial materials and chemical bonding of antimicrobial materials to textiles in order to improve the durability, efficiency, and sustainability of these antimicrobial materials and to lower the cost of production. Rose Bengal has been reported as an efficient antimicrobial photosensitizer which can yield singlet oxygen under visible light and can inactivate many types of microorganisms through oxidization and disabling critical cellular functions .…”

Section: Introductionmentioning

confidence: 99%

Functional dye as a comonomer in a water‐soluble polymer

Zhang¹,

Vinueza²,

Datta³

et al. 2015

J. Polym. Sci. Part A: Polym. Chem.

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In many applications, a functional additive is blended into a polymer matrix to enhance its properties. However, when the polymer and functional additive are applied to a surface, the functional molecule may be easily lost. In favorable cases, it may be possible to incorporate the additive directly into the polymer as a comonomer. In this study, a functionalized polymer has been obtained through the combination of linking a photodynamic, antimicrobial dye, Rose Bengal, to vinyl benzyl chloride via etherification and then polymerizing this into a water-soluble polymer using chain growth copolymerization.Characterization of the efficiency of synthesis, solubility of the final product, and singlet oxygen production rate has been performed. Dialysis was used to determine the extent of incorporation of the dye into the polymer. The chemical structure of the intermediate produced through etherification has been verified.

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Synthesis, characterization and antimicrobial activity of modified cellulose-graft-polyacrylonitrile with some aromatic aldehyde derivatives

Cited by 33 publications

References 48 publications

N‐Heterocyclic Carbene‐Protected Ag Nanoparticles Immobilized on Polyacrylonitrile Fiber as Efficient Catalysts for a Three‐Component Coupling Reaction

N‐Heterocyclic Carbene‐Protected Ag Nanoparticles Immobilized on Polyacrylonitrile Fiber as Efficient Catalysts for a Three‐Component Coupling Reaction

Renewable Modified Cellulose Bearing Chelating Schiff Base for Adsorptive Removal of Heavy Metal Ions and Antibacterial Action

Functional dye as a comonomer in a water‐soluble polymer

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