Synthesis, Dielectric and Electrical Properties of Silver-Polymer Nanocomposites

Gadtya, Ankita Subhrasmita; Nayak, Rozalin; Mahaling, Ram Naresh

doi:10.5772/intechopen.96107

Cited by 3 publications

(2 citation statements)

References 94 publications

(105 reference statements)

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“…The solution containing L.AgNPs was dispersed in DMSO solvent into the ratios of 100 mg/ml, 50 mg/ml, 25 mg/ml. The antifungal activity of L.AgNPswas carried out by diffusion method in the plate [8]. The fungal strains used for testing are A. flavus (Af), A. brasiliensis (Ab), C. Albicans (Ca) grown on PDA agar.…”

Section: Antifungal Activitymentioning

confidence: 99%

“…AgNPs are one of the most interesting types of nanomaterials because, in addition to the properties of metal nanomaterials in general, such as photocatalysis [7], electrical properties [8], magnetic properties [9], and photoelectric ability [10], they also have outstanding antibacterial and bactericidal properties [11]. Because of these specific physicochemical properties, AgNPs have many applications in different fields, such as detection and decomposition of toxic organic pigments [12][13][14], biosensors [15], drug delivery and biomolecules [16], important materials in electro-optical devices [17], antimicrobial, antiviral, and antifungal .…”

Section: Introductionmentioning

confidence: 99%

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Silver nanoparticles synthesized from <i>Spilanthes acmella L. Murr</i> extract using antifungal and antibacterial

Cao Tien,

Dinh Thuy,

Dang Thi

et al. 2023

Comm. Phys.

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Spilanthes acmella L. Murr is a medicinal herb with many valuable biological activities such as clearing heat, detoxifying, dissipating phlegm, antiseptic, pain relief, antifungal, anti-inflammatory... In this work, we used Spilanthes acmella L. Murr extract to synthesize silver nanoparticles to combine and enhance the activity of silver and Spilanthes acmella L. Murr extract in antibacterial and antifungal activities. The reaction parameters were investigated to find the most optimal conditions for synthesizing silver nanoparticles, such as AgNO3 volume, solution pH, and reaction temperature. UV-VIS absorption spectra were used to analyze the influence of the reaction parameters. The functional groups on the silver nanoparticles as well as the Spilanthes acmella L. Murr extract were found by infrared absorption (FTIR) spectroscopy. The crystal structure of the synthesized silver nanoparticles was determined by X-ray diffraction (XRD) spectroscopy. On the basis of the synthesized silver nanoparticles, the antifungal activity was investigated on the strains: A. flavus (Af), A. brasiliensis (Ab), C. Albicans (Ca), and antibacterial: Staphylococcus aureus (SA), Pseudomonas aeruginosa (PA) was performed to compare the activity of the antibiotic ampicillin 100 mg/mL.

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Section: Antifungal Activitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Silver nanoparticles synthesized from <i>Spilanthes acmella L. Murr</i> extract using antifungal and antibacterial

Cao Tien,

Dinh Thuy,

Dang Thi

et al. 2023

Comm. Phys.

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A novel green approach for the construction of conductive glass fiber‐silver‐PANI ternary composites with efficient electromagnetic interference shielding and excellent thermal stability

Chandran,

Krishnan,

Johnson

et al. 2024

J of Applied Polymer Sci

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The study proposes a novel way of amalgamating three different materials to develop an effective electromagnetic interference (EMI) shielding material by completely utilizing the distinct properties of each one. First and foremost, binary composites have been prepared by combining with various weight of silver (1, 2, and 3 g) and constant weight percentages of glass fiber. The synthesis of the glass fiber‐silver‐PANI ternary composite is then brought about by PANI particles precisely encased on the surface of the glass fiber‐silver binary composite. The intertwining of a thin PANI coating on the binary composite is done successfully via simple in‐situ polymerization of aniline using lime juice as the dopant. The structural properties have been studied with XRD and FT‐IR. The SEM analysis reveals the effectual distribution of PANI on binary composite. The thermal stability of the composites has been studied using TG analysis. Most importantly, the glass fiber‐silver‐PANI ternary composite shows significantly high EMI shielding effectiveness up to 41 dB in the x‐band region.

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TSD investigation of P(VDF-TeFE)/Si composites under the gamma irradiation

Mehdiyeva

Nuruyev

Mehdiyev

et al. 2023

Int. J. Mod. Phys. B

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In the presented work, the charge state of P(VDF-TeFE)/Si-based composites obtained on the basis of nano-Si with a size of 50[Formula: see text]nm and micro-Si particles with a size of 50[Formula: see text][Formula: see text]m and P(VDF-TeFE) copolymer of polyvinylidenefluoride with tetrafluoroethylene from polar polymers, was investigated, the amount of filler and the effect of ionizing radiation on these properties were studied. It has been shown that the observed differences in the charge state parameters of P(VDF-TeFE)/Si composites obtained with nano- and micro-sized Si are due to the higher concentration of nanoparticles and, accordingly, the effective surface area in the composites obtained with nanosized Si, and the change in the mobility of relaxors due to the effects of construction and destruction processes that occur in the polymer matrix and at the interphase boundary after the effect of gamma radiation. The reason for the observed changes in the depolarization processes of polarized P(VDF-TeFE)/nano-Si composites after gamma radiation is the change in the ratio between the construction and destruction processes in the system.

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Synthesis, Dielectric and Electrical Properties of Silver-Polymer Nanocomposites

Cited by 3 publications

References 94 publications

Silver nanoparticles synthesized from <i>Spilanthes acmella L. Murr</i> extract using antifungal and antibacterial

Silver nanoparticles synthesized from <i>Spilanthes acmella L. Murr</i> extract using antifungal and antibacterial

A novel green approach for the construction of conductive glass fiber‐silver‐PANI ternary composites with efficient electromagnetic interference shielding and excellent thermal stability

TSD investigation of P(VDF-TeFE)/Si composites under the gamma irradiation

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