Release of silver and copper nanoparticles from polyethylene nanocomposites and their penetration into Listeria monocytogenes

Tamayo, Laura; Zapata, Paula Andrea; Vejar, Nelson; Azócar, Manuel; Gulppi, Miguel; Zhou, Xiaorong; Thompson, G.E.; Rabagliati, Franco M.; Páez, Maritza

doi:10.1016/j.msec.2014.03.037

Cited by 183 publications

(113 citation statements)

References 40 publications

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“…This effect is highly influenced by the nanoparticles' size, shape and concentration [53][54][55][56] and a study using Escherichia coli [14] confirmed that AgNPs accumulation on the membrane cell creates gaps in the integrity of the bilayer which predisposes it to a permeability increase and finally bacterial cell death [19]. Several studies have shown that AgNP activity is strongly dependent on the size [46,47]. In fact, the bactericidal activity of AgNPs of smaller dimensions (<30 nm) was found to be optimal against Staphylococcus aureus and Klebsiella pneumoniae [49].…”

Section: Salmonella Typhimentioning

confidence: 92%

“…Alteration of membrane [28,41,47] Listeria monocytogenes Morphological changes, separation of the cytoplasmic membrane from the cell wall, plasmolysis [47] Micrococcus luteus Alteration of membrane [28] Nitrifying bacteria inhibits respiratory activity [31] Pseudomonas aeruginosa Irreversible damage on bacterial cells; Alteration of membrane permeability and respiration [17,28,32,33,36,[41][42][43][44][48][49][50] Proteus mirabilis Alteration of cell wall and cytoplasm. [43,44] …”

Section: Klebsiella Pneumoniaementioning

confidence: 99%

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Silver Nanoparticles as Potential Antibacterial Agents

et al. 2015

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Multi-drug resistance is a growing problem in the treatment of infectious diseases and the widespread use of broad-spectrum antibiotics has produced antibiotic resistance for many human bacterial pathogens. Advances in nanotechnology have opened new horizons in nanomedicine, allowing the synthesis of nanoparticles that can be assembled into complex architectures. Novel studies and technologies are devoted to understanding the mechanisms of disease for the design of new drugs, but unfortunately infectious diseases continue to be a major health burden worldwide. Since ancient times, silver was known for its anti-bacterial effects and for centuries it has been used for prevention and control of disparate infections. Currently nanotechnology and nanomaterials are fully integrated in common applications and objects that we use every day. In addition, the silver nanoparticles are attracting much interest because of their potent antibacterial activity. Many studies have also shown an important activity of silver nanoparticles against bacterial biofilms. This review aims to OPEN ACCESSMolecules 2015, 20 8857 summarize the emerging efforts to address current challenges and solutions in the treatment of infectious diseases, particularly the use of nanosilver antimicrobials.

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Section: Salmonella Typhimentioning

confidence: 92%

Section: Klebsiella Pneumoniaementioning

confidence: 99%

Silver Nanoparticles as Potential Antibacterial Agents

et al. 2015

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“…Данный способ позволяет получать наночасти-цы металлов (или оксидов металлов) с низким распределением разме-ров и контролируемой морфологией. В качестве неорганических предшественников наночастиц меди используют ацетат меди Cu(CH 3 COO) 2 Важную роль в качестве восстанавливающего агента соли меди играет избыток аскорбиновой кислоты [21][22][23] (возможно использова-ние гидроксида натрия [16,24] или боргидрида натрия [10]), предот-вращающий окисление наночастиц меди [25][26][27]. Антиокислительные свойства аскорбиновой кислоты проявляются благодаря способности присоединять свободные радикалы с помощью электронного пожертво-вания по донорно-акцепторному механизму:…”

Section: химические методы подготовки медиunclassified

“…Сложный механизм антибактериального действия деталь-но не изучен. Большинство исследований придерживаются механизма действия ионов меди, которые высвобождаются из наночастиц [9][10][11][12]. Ионы меди наиболее эффективно выделяются из наночастиц меди.…”

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The influence of metal nanoparticles on the mechanical properties of composite materials

Каримов¹,

Каримов²,

Мовсумзаде³

et al. 2017

Nanotehnol. stroit.

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ExtEndEd AbstrAct:The article presents the results of studies on changes in mechanical and physical properties of polymeric construction materials after the introduction of metal nanoparticles. As an example of metal nanoparticles the influence of nanoparticles of copper has been considered. The ways of formation of copper with dimensions of nanometers, a brief methodology and structure of the obtained filler are shown. Copper nanoparticles have unique anti-bacterial, thermal and conductive properties. These properties substantially remain in the polymer material. The resulting composite material has technological properties of polymers and unique physical properties of the filler.Polymer material was selected among the products of large-tonnage production: polyvinyl chloride, elastomers, polyethylene, polypropylene, polystyrene. The selection of copper ions from the nanoparticles depends on the type of stabilizing agent and on the chemical nature of the environment. The performance of antimicrobial properties in polymer materials is achieved by the dosage of copper in the amount of 1-2% by weight. To give a material the conductive properties of copper nanoparticles a higher concentration of metal is required. To use only

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“…This effect is highly influenced by the nanoparticles' size, shape and concentration (53,56) and a study using Escherichia coli confirmed that NPs accumulation on the membrane cell creates gaps in the integrity of the bilayer which predisposes it to a permeability increase and finally bacterial cell death (14,19). Several studies have shown that AgNP activity is strongly dependent on the size (46,47). Infact, the bactericidal activity of NPs of smaller dimensions (<30 nm) was found to be optimal against Staphylococcus aureus and Klebsiella pneumoniae (49).…”

Section: Drug Mechanisms Of Action On Bacteriamentioning

confidence: 99%

Nanomedicine opened new horizons for metal nanoparticles to treat multi-drug resistant organisms

Halawani¹

2016

Int.J.Curr.Microbiol.App.Sci

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Release of silver and copper nanoparticles from polyethylene nanocomposites and their penetration into Listeria monocytogenes

Cited by 183 publications

References 40 publications

Silver Nanoparticles as Potential Antibacterial Agents

Silver Nanoparticles as Potential Antibacterial Agents

The influence of metal nanoparticles on the mechanical properties of composite materials

Nanomedicine opened new horizons for metal nanoparticles to treat multi-drug resistant organisms

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