Simple synthesis of active films based on PVC incorporated with silver nanoparticles: Evaluation of the thermal, structural and antimicrobial properties

Braga, Lilian R.; Rangel, Ellen Tanus; Suarez, Paulo A. Z.; Machado, Fabricio

doi:10.1016/j.fpsl.2017.12.005

Cited by 44 publications

(23 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Active films were prepared by solvent casting, following the modified procedure previously reported elsewhere (Amar & Parisi, 2013;Braga, Rangel, Suarez, & Machado, 2017). Initially, 0.5 g of PVC was slowly dissolved under constant agitation using a magnetic stirrer (model Go-Stirrer MS-H-S Go-Lab) in 20 mL THF containing 200 μL of industrial epoxidized soybean oil as a plasticizer and kept under boiling (65°C) for 120 s. Subsequently, the homogeneous solutions were mixed with 0.4% of quercetin and silver nitrate (AgNPs) (0.0, 1.0, 4.0 and 8.0%).…”

Section: Formation Of Active Filmsmentioning

confidence: 99%

Evaluation of the antimicrobial, antioxidant and physicochemical properties of Poly(Vinyl chloride) films containing quercetin and silver nanoparticles

Braga¹,

Pérez

Soazo

et al. 2019

LWT

Self Cite

View full text Add to dashboard Cite

This work provides details regarding the physicochemical, antimicrobial and antioxidant properties of poly(vinyl chloride) (PVC)-based films containing 0.4% quercetin and silver nanoparticles (AgNPs) at various concentrations levels. The incorporation of quercetin and AgNPs into the PVC matrix considerably affected the thermal, mechanical and optical properties of the films. Results obtained from the tensile stresgth test, demonstrated an improvement in the mechanical strength of the films after the incorporation of both quercetin and AgNPs. Moreover, an increase in AgNPs concentration increased the rigidity, as compared to control PVC film. Antimicrobial activity against food pathogens (Escherichia coli, Salmonella Typhimurium and Listeria monocytogenes) was evaluated by an antimicrobial barrier test. Results showed that the PVC-based films with quercetin and AgNPs proved to be highly effective to inhibiting bacterial growth. Therefore, these results indicate promising evidence to possibly aid in the prevention of microbial dissemination in foods. Additionally, films incorporated with quercetin and AgNPs expressed an antioxidant capacity when evaluated via the DPPH method. Among all of the films evaluated, the PVC-based films containing 0.4% quercetin and 1% AgNPs were flexible, exhibiting excellent UV-light barrier properties and for use with fatty foods, with the intent of reducing lipid oxidation and preventing food pathogen dissemination.

show abstract

Section: Formation Of Active Filmsmentioning

confidence: 99%

Evaluation of the antimicrobial, antioxidant and physicochemical properties of Poly(Vinyl chloride) films containing quercetin and silver nanoparticles

Braga¹,

Pérez

Soazo

et al. 2019

LWT

Self Cite

View full text Add to dashboard Cite

show abstract

“…With the incorporation of AgNPs, the thermal stability of PEMA/GO exhibited 6% enhancement of thermal property. Such high increase of thermal stability due to AgNPs implied the uniform distribution of AgNPs in PEMA/GO matrix [64]. Such increase in thermal stability and increase in thermal degradation temperature of polyvinyl chloride embedded silver nanoparticles composites with increase in concentration of AgNPs are reported by Braga et al [64].…”

Section: Study Of Properties Of Pema/go/ag Nanocompositesmentioning

confidence: 88%

Silver Nanoparticles Decorated Polyethylmethacrylate/Graphene Oxide Composite: As Packaging Material

Mohanty

Swain

2018

Polymer Composites

View full text Add to dashboard Cite

Silver nanoparticles (AgNPs) decorated polyethylmethacrylate (PEMA)/Graphene oxide (GO) nanocomposites were prepared through in situ polymerization ethylmethacrylate (EMA) in presence of GO and AgNPs. PEMA/GO/Ag nanocomposites were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), Fourier transform infrared (FTIR), X‐ray diffraction analysis (XRD), and UV‐visible spectroscopy. The thermal stability of PEMA was considerably enhanced due to incorporation of GO and AgNPs and around 32% residue was obtained for PEMA/GO/Ag. This was due to the compatibility of the AgNPs with PEMA and surface functional group of GO. The oxygen barrier property of the PEMA/GO was become double due to incorporation of AgNPs, which was due to the uniform dispersion of AgNPs. The prepared PEMA/GO/Ag composites had shown high resistance to acid and alkali. The antimicrobial properties of composites were measured by Kirby‐Bauer method and the positive antimicrobial properties along with other enhanced properties enable the material suitable for antimicrobial packaging. POLYM. COMPOS., 40:E1199–E1207, 2019. © 2018 Society of Plastics Engineers

show abstract

“…Although Ag + ions are the main antimicrobial agents for AgNPs larger than 10 nm, the activity AgNPs smaller than this threshold is ascribed to the NPs themselves, which are more effective in internalizing the cells and being oxidized into Ag + . AgNP‐containing films are effective against bacteria, mainly Gram‐negative (G(−)) bacteria, as well as against fungi . The efficacy of AgNP‐loaded materials in reducing microbial growth and extending food stability has been demonstrated in the context of fresh produce, dairy, and meat products.…”

Section: Inorganic Antimicrobial Nanostructuresmentioning

confidence: 99%

“…[11] AgNP-containing films are effective against bacteria, [12] mainly Gram-negative (G(−)) bacteria, [13,14] as well as against fungi. [15,16] The efficacy of AgNP-loaded materials in reducing microbial growth and extending food stability has been demonstrated in the context of fresh produce, [17][18][19] dairy, [20] and meat [18] products. Apart from the antimicrobial activity, AgNPs may provide materials with UV light barrier, [14] ethylene absorption, [17] hydrophobicity, [21] as well as enhanced thermal [14] and barrier properties.…”

Section: Silver Nanoparticlesmentioning

confidence: 99%

Nanostructured Antimicrobials in Food Packaging—Recent Advances

Azeredo

Otoni

Corrêa

et al. 2019

Biotechnology Journal

View full text Add to dashboard Cite

Active food packaging systems promote better food quality and/or stability, such as by releasing antimicrobial agents into food. Advantages of adding antimicrobials to the packaging material instead of into the bulk food include controlled diffusion, reduced antimicrobial contents, and improved cost effectiveness. Nanostructured antimicrobials are especially effective due to their high specific surface area. The present review is focused on recent advances and findings on the main nanostructured antimicrobial packaging systems for food packaging purposes. Several kinds of nanostructures, including both inorganic particles and organic structures, have been proven effective antimicrobials by different mechanisms of action and with different application scopes. Moreover, there are systems containing nanocarriers to protect antimicrobials and deliver them in a controlled fashion. On the other hand, scientific data about migration of nanostructures onto food and their toxicity are still limited, requiring special attention from researchers and regulation sectors.

show abstract

Simple synthesis of active films based on PVC incorporated with silver nanoparticles: Evaluation of the thermal, structural and antimicrobial properties

Cited by 44 publications

References 57 publications

Evaluation of the antimicrobial, antioxidant and physicochemical properties of Poly(Vinyl chloride) films containing quercetin and silver nanoparticles

Evaluation of the antimicrobial, antioxidant and physicochemical properties of Poly(Vinyl chloride) films containing quercetin and silver nanoparticles

Silver Nanoparticles Decorated Polyethylmethacrylate/Graphene Oxide Composite: As Packaging Material

Nanostructured Antimicrobials in Food Packaging—Recent Advances

Contact Info

Product

Resources

About