Analytical characterization of laser-generated copper nanoparticles for antibacterial composite food packaging

Longano, Daniela; Ditaranto, Nicoletta; Niso, Francesca Di; Sibillano, Teresa; Ancona, Antonio; Conte, Amalia; Nobile, Matteo Alessandro Del; Sabbatini, Luigia; Torsi, Luisa

doi:10.1007/s00216-011-5689-5

Cited by 159 publications

(65 citation statements)

References 48 publications

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“…96 Against urinary tract pathogen, copper oxide nanoparticles (CuONPs) have shown antibacterial performance. Tabernaemontana divaricata leaf is an Indian medicinal plant with proven anti-inflammatory and antibacterial properties.…”

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confidence: 99%

Antibacterial properties and toxicity from metallic nanomaterials

Vimbela¹,

Ngo²,

Fraze³

et al. 2017

IJN

501

334

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The era of antibiotic resistance is a cause of increasing concern as bacteria continue to develop adaptive countermeasures against current antibiotics at an alarming rate. In recent years, studies have reported nanoparticles as a promising alternative to antibacterial reagents because of their exhibited antibacterial activity in several biomedical applications, including drug and gene delivery, tissue engineering, and imaging. Moreover, nanomaterial research has led to reports of a possible relationship between the morphological characteristics of a nanomaterial and the magnitude of its delivered toxicity. However, conventional synthesis of nanoparticles requires harsh chemicals and costly energy consumption. Additionally, the exact relationship between toxicity and morphology of nanomaterials has not been well established. Here, we review the recent advancements in synthesis techniques for silver, gold, copper, titanium, zinc oxide, and magnesium oxide nanomaterials and composites, with a focus on the toxicity exhibited by nanomaterials of multidimensions. This article highlights the benefits of selecting each material or metal-based composite for certain applications while also addressing possible setbacks and the toxic effects of the nanomaterials on the environment.

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confidence: 99%

Antibacterial properties and toxicity from metallic nanomaterials

Vimbela¹,

Ngo²,

Fraze³

et al. 2017

IJN

501

334

View full text Add to dashboard Cite

show abstract

“…It can work against viruses and fungi, and other bacteria that cause food poisoning, such as Listeria and Salmonella, and Methicillin resistant Staphylococcus aureus (MRSA), a bacteria that is particularly difficult to treat with antibiotics. Copper nanoparticles embedded in polylactic acid, combining the antibacterial properties of copper nanoparticles with the biodegradability of the polymer matrix [22]. PEG-plasticized PLA-based composite films containing ZnO (<50 and <100 nm), or Ag-Cu alloy were prepared by a solvent casting method [23,24].…”

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confidence: 99%

New PLA/ZnO:Cu/Ag bionanocomposites for food packaging

Vasile¹,

Râpă²,

Ştefan³

et al. 2017

Express Polym. Lett.

101

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“…Copper has a highly active redox potential, allowing it to accept or donate electrons easily (Nan y col., 2008 . In the last study, the use of copper in metallic state (Cu 0 ) was studied, because it is a highly reactive species that can produce all antimicrobial species listed above, thereby causing bacterial death 33,36 . Copper antimicrobial activity has been confirmed over a broad spectrum of microorganisms such as Escherichia coli O157:H7, Staphylococcus aureus, Enterobacter aerogenes, Pseudomona aeruginosa 29 , Listeria monocytogenes 37 , Salmonella entérica, Campylobacter jejuni 38 , Klebsiella pneumoniae, Mycobacterium tuberculosis, Candida albicans 39 , Clostridium difficile 40 , Aspergillus flavus, Aspergillus niger, Penicillium chrysogenum 41 Saccharomyces cereviciae 42 .…”

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confidence: 99%

DEVELOPMENT OF ANTIBACTERIAL MtCu/PLA NANOCOMPOSITES BY CASTING METHOD FOR POTENTIAL USE IN FOOD PACKAGING

Bruna

Quilodrán

Guarda

et al. 2015

J. Chil. Chem. Soc.

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Polylactic acid (PLA) nanocomposites with two antimicrobial agents based on copper modified montmorillonite (MtCu 2+ and MtCu 0 ) were developed in order to obtain a lower environmental impact material with antimicrobial activity for potential use in food packaging. Clay modification was permorfed by cation exchange between MtNa + and a copper salt obtaining MtCu 2+ and its followed reduction with NaBH 4 obtaining MtCu 0 . Then PLA nanocomposite films (MtCu 2+ / PLA and MtCu 0 /PLA), using different concentration of MtCu 2+ and MtCu 0 (1, 3 and 5 wt.%) were obtained by casting technique. X-ray diffraction (XRD) and Transmission electronic microscopy (TEM) analysis evidenced a certain degree of intercalation of the modified clays in the nanocomposites. Thermal, mechanical and optical properties showed variations by incorporating MtCu 2+ and MtCu 0 in the polymer matrix. On the other hand, it was possible to evidence antimicrobial activity of the nanocomposites (ASTM Standard E2149) against to Escherichia coli ATCC 25922 and Listeria innocua ATCC 33090 obtaining a 99% maximum of reduction to both bacteria.

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Analytical characterization of laser-generated copper nanoparticles for antibacterial composite food packaging

Cited by 159 publications

References 48 publications

Antibacterial properties and toxicity from metallic nanomaterials

Antibacterial properties and toxicity from metallic nanomaterials

New PLA/ZnO:Cu/Ag bionanocomposites for food packaging

DEVELOPMENT OF ANTIBACTERIAL MtCu/PLA NANOCOMPOSITES BY CASTING METHOD FOR POTENTIAL USE IN FOOD PACKAGING

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