of polymeric silver-containing film nanocomposites based on polylactides synthesized us-ing plant extracts. The aim of this work is the green synthesis of silver-containing nanocomposites based on polylactide (PLA) in two ways: reduction of Ag+ ions to silver nanoparticles with
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Silver Nanowires/Polylactide Film with High Performance for Optoelectronic Devices Junjun Wang 1,2, Junsheng Yu 1, Dongyu Bai 2,*, ... renewability from starch-containing crops and full biodegradability in soil after use, but also low cost, easy processability, excellent transparency, superior resistivity to chemicals, and better …
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Hydrolytic degradation of porous polylactide (PLA) films with various porosity and morphology has been thoroughly investigated. It has been found that the structural and mechanical modification of PLA films by the environmental crazing mechanism results in the formation of a porous structure, is accompanied by the change …
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In this paper, we demonstrated a simple technique to design antimicrobial and antiviral nanocomposites based on polylactide and Ag nanoparticles. Silver-containing nanocomposites were synthesized by thermochemical reduction of Ag + ions in polymer PLA–AgPalm–PEI films. The nanocomposites were characterized using FTIR, WAXS, …
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PLA films containing silver ions were coated with beeswax of varying thicknesses. • All films demonstrated high antimicrobial effectiveness at the nanomolar level against Salmonella. • Daily sustained release and antimicrobial performance were …
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Green synthesis of silver-containing nanocomposites based on polylactide (PLA) was carried out in two ways. With the use of green tea extract, Ag+ ions were reduced to silver nanoparticles with their subsequent introduction into the PLA (mechanical method) and Ag+ ions were reduced in the polymer matrix of PLA-AgPalmitate (PLA-AgPalm) (in …
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formation of polylactide films with silver nanoparticles was suggested. Based on the findings, technological and fungi bactericidal characteristics of films based on mixtures …
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Thermochemical reduction of Ag+ ions in the bulk of polymer films, containing PLA, silver palmitate as a precursor of Ag NP and reducing agent (PEI or chitosan), has been performed by keeping them ...
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163. 2016. The perspectives of natural deep eutectic solvents in agri-food sector. YHC Aleksandra Mišan, Jelena Nađpal, Alena Stupar, Milica Pojić, Anamarija ... Critical Reviews in Food Science and Nutrition., 2019. 134 *. 2019.
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Novel active films of polylactide (PLA) containing extract of Allium ursinum L. (AU), also called wild garlic, at 10 wt% were succesfully prepared by the electrospinning technology. Electrospinning of the AU-containing PLA solutions yielded fibers in the 1–2 μm range with a beaded-like morphology, suggesting that the AU extract was mainly …
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The paper presents the result of selected properties of polylactide films containing natural coffee, cocoa or cinnamon extracts which primarily were proposed as natural antioxidants. The focus was on properties relevant to the packaging industry such as color and transparency, surface roughness, wettability, surface energy, friction coefficient ...
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DOI: 10.1016/j.ijfoodmicro.2012.12.024 Corpus ID: 25350576; Evaluation of silver-infused polylactide films for inactivation of Salmonella and feline calicivirus in vitro and on fresh-cut vegetables.
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Abstract. This article investigates the process of obtaining polylactide film composite materials with the simultaneous formation of silver nanoparticles. Impact of polylactide …
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Characterization of transparent silver loaded poly (l-lactide) films produced by melt-compounding for the sustained release of antimicrobial silver ions in food …
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In that case, PHBV3/PHBV18 films, containing 0.04 wt % of AgNPs, showed a strong and sustained antibacterial activity against two of the most common foodborne pathogens, Salmonella enterica and Listeria monocytogenes. However, despite this progress, and especially considering that the application of these materials in the …
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In this work, electrically conductive silver nanowire (Ag NW) filled polylactide (PLA) nanocomposites were fabricated and characterized. Ag NWs/PLA nanocomposite films were fabricated using simple solution mixing method and casted onto glass substrates via doctor blading. Following the obtainment of free standing …
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Green synthesis of silver-containing nanocomposites based on polylactide (PLA) was carried out in two ways. With the use of green tea extract, Ag + ions were reduced to silver nanoparticles with their subsequent introduction into the PLA (mechanical method) and Ag + ions were reduced in the polymer matrix of PLA-AgPalmitate (PLA …
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A series of new polymeric materials consisting of polylactide (PLA), polyethylene glycol (PEG) and berberine chloride (B) was evaluated. PEG was incorporated into the polymer matrix with the aim of obtaining a plasticizing effect, while berberine was added in order to obtain antibacterial properties in formed packaging materials. Materials …
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Moreover, samples containing 50% or more of PHBV exhibit two endothermic peaks at approximately 156 and 145 °C, which correspond to common crystal perfection behavior seen in many semi-crystalline polymers. ... Lagaron J.M. Preparation, characterization and antimicrobial properties of electrospun polylactide films containing Allium ursinum L ...
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Novel antimicrobial and antiviral silver-containing nanocomposites (PLA-Ag-PEI) based on polylactide (PLA) have been created by the thermochemical reduction of Ag⁺ ions in the polymer films.
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Abstract. Biodegradable polylactide (PLA) nanofibers containing silver nanoparticles were prepared by electrospinning. Solutions of PLA in dichloromethane/ N,N -dimethylacetamide (DMAc) with different amounts of silver nitrate (AgNO 3) were used to spin nanofibers. DMAc was used as a reducing agent for Ag + ions in the PLA solution.
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Poly (lactic acid) (PLA) and poly (3-hydroxybutyrateco-hydroxyvalerate) (PHBV) are two of the most produced bio-based and biodegradable polymers recently being employed in food packaging. PLA is ...
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The microbial biodegradation of new PLA and PCL materials containing birch tar (1–10% v/v) was investigated. Product of dry distillation of birch bark (Betula pendula Roth) was added to polymeric materials to obtain films with antimicrobial properties. The subject of the study was the course of enzymatic degradation of a …
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Composite materials containing nanoparticles (average crystallite size is ~30 nm) of various biologically active calcium phosphates are obtained on the basis of porous polylactide matrices (with a ...
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The present study aimed at the preparation of antimicrobial films based on low-density polyethylene (LDPE), with zeolite exchanged with Silver (Ag) in 1, 5 and 10 wt.%. Zeolites with Ag were characterized …
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Films containing 1.0 and 0.1% silver completely inactivated Salmonella after 5 washings, except the PLA films containing 0.01% silver. In addition, Salmonella counts …
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Silver-containing biomaterials in various forms (powders, films, solutions, products formed by 3D technology) with effective antimicrobial and antiviral effects have been developed.
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Novel active films of polylactide (PLA) containing extract of Allium ursinum L. (AU), also called wild garlic, at 10wt% were succesfully prepared by the electrospinning technology.
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PLA–DMF films containing 0.01% of silver showed about 4 log CFU reduction in comparison with the control, i.e. PLA–DMF films without silver. These results are somewhat similar to that for the silver-based nanoclay incorporation into PLA films reported by Busolo et al. (2010), where the Salmonella viable counts were reduced by …
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The results showed that both TA and PEG cause increasing elongation at break (E ab) and decreasing tensile strength (TS), where the plasticized PLA films containing 10 and 30 wt% of TA showed the highest TS (26.6 MPa) and E ab (81.1%), respectively. Light transmission of PLA was decreased by introducing the plasticizers, …
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The combination of biocompatibility, biodegradability, and high mechanical strength has provided a steady growth in interest in the synthesis and application of lactic acid-based polyesters for the creation of implants. On the other hand, the hydrophobicity of polylactide limits the possibilities of its use in biomedical fields. The ring-opening …
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Characterization of transparent silver loaded poly (l-lactide) films produced by melt-compounding for the sustained release of antimicrobial silver ions in food …
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Nevertheless, the biodegradation capacity of films containing 9.8% silver species was seriously affected, reaching values of only 58% after 45 days of composting, despite their high disintegration ...
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The incorporation of some silver compounds with contents of 1 wt% did not affect the mechanical or optical properties of the films. The films showed a good …
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The XRD patterns for both the PLA films are shown in Fig. 1 (c). Poly(lactic acid), being a semi-crystalline bio-based polymer, consists of crystalline and amorphous regions distributed through the material [21], [22].The results for the solvent cast PLA film showed sharp peaks corresponding to the different crystalline regions within the polymer …
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Plasticized polylactide (PLA) composite films with multifunctional properties were created by loading bimetallic silver–copper (Ag–Cu) nanoparticles (NPs) and …
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