Nanocomposite coatings based on copper and the products of polyethylene destruction, features of their formation, structure and antibacterial properties

Sun, Jinguo; Rogachev, A.V.; Yarmolenko, М.А.; Рогачев, А. А.; Jiang, Xiaohong; Тапальский, Д. В.; Gorbachev, D.L.; Беспалько, А. А.

doi:10.1039/c6ra02933g

Cited by 9 publications

(5 citation statements)

References 19 publications

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“…These polymer-based nanocomposites can serve as antibacterial, bacteriostatic, antifouling, and self-cleaning surfaces [ 12 , 13 , 14 ]. Copper and copper oxide NPs are very potent in water disinfection applications [ 15 ], since they exhibit high antibacterial, antifungal and antiviral properties [ 14 , 16 , 17 , 18 ]. Previous studies showed that the antibacterial activity of nanosized Cu, Cu 2 O, and CuO depends on the morphology and size of these NPs, as well as on the dissolution ability of copper species in the surrounding media [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

LLDPE Composites with Nanosized Copper and Copper Oxides for Water Disinfection

et al. 2020

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Consumption of contaminated water may lead to dangerous and even fatal water-borne diseases. Disinfection of drinking water is the most effective solution for this problem. The most common water treatment methods are based on the use of toxic disinfectants. Composites of polymers with nanosized metals and their oxides may become a good alternative to the existing methods. Expanding the scope of our previous publication, copper, cuprous, and copper oxide nanoparticles were immobilized onto linear low-density polyethylene by a simple thermal adhesion method. The antibacterial efficiency of the immobilized nanoparticles was tested against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus in batch experiments and for the first time the efficiency of these composites is reported for continuous flow regime. Immobilized copper and cuprous oxide nanoparticles demonstrated a high ability to eradicate bacteria after 30 min. These composites showed no or very limited leaching of copper ions into the aqueous phase both in the presence and in the absence of a bacterial suspension. Immobilized copper and cuprous oxide nanoparticles can be used for batch or continuous disinfection of water.

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Section: Introductionmentioning

confidence: 99%

LLDPE Composites with Nanosized Copper and Copper Oxides for Water Disinfection

et al. 2020

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“…Electron beam dispersion is conducive to uniform films of high purity and density. Evaporating the materials under vacuum can help to avoid the contamination and oxidation of the prepared materials [11], which also allows the formation of thin antibacterial layers with prolonged release of the drug component [12,13]. Under the conditions of multi-turn evaporation deposition, multilayer composite materials or gradient structural materials with various compositions are obtained by controlling the deposition process parameters to meet the design requirements of the materials [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Structures and Antibacterial Properties of PLA-based Ciprofloxacin Composite Films Deposited by Low-Electron Beam Dispersion

Jiang

et al. 2020

Eurasian Chem. Tech. J.

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Polylactic acid (PLA)-based ciprofloxacin (Cip) antibacterial films with mass ratio PLA:Cip=1:1 were prepared by low-electron beam dispersion (EBD). The molecular structure, chemical composition and morphology of PLA-based ciprofloxacin antibacterial films were investigated by XPS, FTIR, liquid NMR and SEM. The antibacterial activity of composite films was tested against E. coli ATCC 25922 and S. aureus ATCC 12600 using the agar diffusion method on the solid LB agar medium. XPS and FTIR analysis showed the presence of an antibacterial ingredient in the composite films. Using NMR, it has been shown that the molecular structure of a monolayer of ciprofloxacin is fully consistent with the molecular structure of the initial ciprofloxacin powder. High antibacterial activity of the composite films has been also established and the layers still possess antibacterial activity with regard to S. aureus even after 7 days of leaching in an isotonic solution. The thermal treatment indicates that the composite films can withstand temperatures of 180 °C and keep its structure unchanged.

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“…[6][7][8] Therefore, comprehensive strategies are required to control and eliminate the cyanobacteriablooms. [9] Numerous efforts including direct chemical methods based on the use of algaecides, [10] flocculants or coagulants, [11] and physicala pproaches such as oxidativet echniques (eg. ozonation), [12] ultrasound technologies [13] have been developed to remove or inhibit the cyanobacteria in water.A mong the methods applied,t he direct chemical methods using chemical compounds (algaecides, flocculants or coagulants) is the most widely used effective method because of the ease of operation and relatively low costs.…”

Section: Introductionmentioning

confidence: 99%

“…Numerous efforts including direct chemical methods based on the use of algaecides, flocculants or coagulants, and physical approaches such as oxidative techniques (eg. ozonation), ultrasound technologies have been developed to remove or inhibit the cyanobacteria in water.…”

Section: Introductionmentioning

confidence: 99%

Recyclable and Intrinsically Anti‐cyanobacterial Polyanionic Membranes

Sun

Liu

Guo

et al. 2017

Chemistry An Asian Journal

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Cyanobacteria blooms possess serious threats to water resources. Herein, we report the synthesis of polyanionic membranes (PA-M) by in situ photo-crosslinking of a sulfate-based anionic monomer followed by cation-exchange with metal cations, Fe (PA-Fe), Cu (PA-Cu), or Zn (PA-Zn). The effect of cations on the anti-cyanobacterial activities against both Microcystis aeruginosa (M. aeruginosa) and Anabaena flos-aquae (A. flos-aquae) was investigated. All the prepared metal-containing membranes (PA-Fe, PA-Cu, PA-Zn) exhibit high anti-cyanobacterial activities and long-term anti-cyanobacterial stability, demonstrating that the synthesized PA-M membranes can be used as an effective and safe inhibitor to control cyanobacterial blooms.

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Nanocomposite coatings based on copper and the products of polyethylene destruction, features of their formation, structure and antibacterial properties

Abstract: A new method of forming coatings containing copper nanoparticles and the products of polyethylene thermal destruction is suggested.

Cited by 9 publications

References 19 publications

LLDPE Composites with Nanosized Copper and Copper Oxides for Water Disinfection

LLDPE Composites with Nanosized Copper and Copper Oxides for Water Disinfection

Structures and Antibacterial Properties of PLA-based Ciprofloxacin Composite Films Deposited by Low-Electron Beam Dispersion

Recyclable and Intrinsically Anti‐cyanobacterial Polyanionic Membranes

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