Silver nanoparticles incorporated PVC films: evaluation of structural, thermal, dielectric and catalytic properties

Shimoga, Ganesh; Shin, Eun Ju; Kim, Sang-Youn

doi:10.1590/0104-1428.08218

Cited by 11 publications

(9 citation statements)

References 36 publications

(38 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nanoscale-sized metal particles are indispensable in numerous industrially important applications such as catalysis [ 1 , 2 , 3 ], healthcare (targeted cancer therapy [ 4 ], antibacterial treatment of medical devices [ 5 , 6 ], biochips [ 7 ], drug delivery [ 8 ]), cosmetics [ 9 ], and the textile industry [ 10 , 11 ]. The typical characteristics of materials exploitable in these applications are the large interaction area between active components (nanoparticles (NPs)) and the environment with simultaneous minimal leakage or targeted release of those active components from the reaction/interaction area into surroundings.…”

Section: Introductionmentioning

confidence: 99%

Optomechanical Processing of Silver Colloids: New Generation of Nanoparticle–Polymer Composites with Bactericidal Effect

Siegel

Kaimlová

Vyhnálková

et al. 2020

IJMS

View full text Add to dashboard Cite

The properties of materials at the nanoscale open up new methodologies for engineering prospective materials usable in high-end applications. The preparation of composite materials with a high content of an active component on their surface is one of the current challenges of materials engineering. This concept significantly increases the efficiency of heterogeneous processes moderated by the active component, typically in biological applications, catalysis, or drug delivery. Here we introduce a general approach, based on laser-induced optomechanical processing of silver colloids, for the preparation of polymer surfaces highly enriched with silver nanoparticles (AgNPs). As a result, the AgNPs are firmly immobilized in a thin surface layer without the use of any other chemical mediators. We have shown that our approach is applicable to a broad spectrum of polymer foils, regardless of whether they absorb laser light or not. However, if the laser radiation is absorbed, it is possible to transform smooth surface morphology of the polymer into a roughened one with a higher specific surface area. Analyses of the release of silver from the polymer surface together with antibacterial tests suggested that these materials could be suitable candidates in the fight against nosocomial infections and could inhibit the formation of biofilms with a long-term effect.

show abstract

Section: Introductionmentioning

confidence: 99%

Optomechanical Processing of Silver Colloids: New Generation of Nanoparticle–Polymer Composites with Bactericidal Effect

Siegel

Kaimlová

Vyhnálková

et al. 2020

IJMS

View full text Add to dashboard Cite

show abstract

“…PC between 12 and 28°, which are characteristic of a crystalline structure [44,45]. However, sharp and intense Bragg reflections can be seen in case of SNC-PC-X1 and SNC-PC-X2 at 2θ values of 38.2°, 44.2°, 64.4°, 77.5°and 81.6°, which are assigned to the (111), (200), (220), (311) and (222) planes of FCC of silver, respectively [40][41][42]. The diffraction peaks are considerably broad, which indicates that the crystallite size is very small.…”

Section: Fesem and Xrd Analysismentioning

confidence: 97%

“…However, sharp and intense Bragg reflections can be seen in case of SNC-PC-X1 and SNC-PC-X2 at 2θ values of 38. [40][41][42]. The diffraction peaks are considerably broad, which indicates that the crystallite size is very small.…”

Section: Fesem and Xrd Analysismentioning

confidence: 99%

See 1 more Smart Citation

Silver-Nanoparticles Embedded Pyridine-Cholesterol Xerogels as Highly Efficient Catalysts for 4-nitrophenol Reduction

2020

Self Cite

View full text Add to dashboard Cite

Two xerogels made of 4-pyridyl cholesterol (PC) and silver-nanocomposites (SNCs) thereof have been studied for their efficient reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in the presence of aqueous sodium borohydride. Since in-situ silver doping will be effective in ethanol and acetone solvents with a PC gelator, two silver-loaded PC xerogels were prepared and successive SNCs were achieved by using an environmentally benign trisodium citrate dehydrate reducing agent. The formed PC xerogels and their SNCs were comprehensively investigated using different physico-chemical techniques, such as field emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), powdered X-ray diffraction (XRD) and UV-Visible spectroscopy (UV-Vis). The FE-SEM results confirm that the shape of xerogel-covered silver nanoparticles (SNPs) are roughly spherical, with an average size in the range of 30–80 nm. Thermal degradation studies were analyzed via the sensitive graphical Broido’s method using a TGA technique. Both SNC-PC (SNC-PC-X1 and SNC-PC-X2) xerogels showed remarkable catalytic performances, with recyclable conversion efficiency of around 82% after the fourth consecutive run. The apparent rate constant (kapp) of SNC-PC-X1 and SNC-PC-X2 were found to be 6.120 × 10-3 sec-1 and 3.758 × 10-3 sec-1, respectively, at an ambient temperature.

show abstract

“…In their studies based on the doping of silver nanoparticles, the authors verified a homogeneous distribution of the particles in the polymeric matrix, for stoichiometric concentrations between 2.5 and 10%, as well as an increase in thermal stability. Silver nanoparticles, AgNPs, have a broad spectrum of antibacterial activity, including Gram-positive and negative bacteria, fungi and viruses [46]. And for that reason, they attract interest from the packaging industry.…”

Section: Innovations In the Area Of Packaging For Refrigeratorsmentioning

confidence: 99%

Innovations in Polymer Applications - Plastic Packaging

Rego¹,

Sartor²,

Klayn³

et al. 2020

J. Res. Updates Polym. Sci.

View full text Add to dashboard Cite

Polymer materials are used in several industrial sectors such as, paints and varnishes, packaging, and the automotive sector. The countless applications of this type of material stem from several factors such as lightness and ease of processing when compared to metals and ceramics. The possibility of chemical modification of polymers is worth mentioning, which can result in a new material with mechanical properties superior to those of the original ones. Another unique characteristic of polymer material is related to the ease with which they can be mixed with other elements (vegetable and synthetic fibers, metals, ceramics) to obtain a composite or hybrid material, thus expanding the spectrum of polymer applications. In this sense, the present work aims to show the uses of polymers in the packaging segment, addressing the main physicochemical and mechanical characteristics that are necessary for manufacturing packaging items as well as innovative technologies to obtain those materials.

show abstract

Silver nanoparticles incorporated PVC films: evaluation of structural, thermal, dielectric and catalytic properties

Cited by 11 publications

References 36 publications

Optomechanical Processing of Silver Colloids: New Generation of Nanoparticle–Polymer Composites with Bactericidal Effect

Optomechanical Processing of Silver Colloids: New Generation of Nanoparticle–Polymer Composites with Bactericidal Effect

Silver-Nanoparticles Embedded Pyridine-Cholesterol Xerogels as Highly Efficient Catalysts for 4-nitrophenol Reduction

Innovations in Polymer Applications - Plastic Packaging

Contact Info

Product

Resources

About