Towards sensor applications of a polymer/Ag nanoparticle nanocomposite film

Yeshchenko, Oleg A.; Malynych, Serhiy; Polomarev, S. O.; Galabura, Yu.; Chumanov, George; Luzinov, Igor

doi:10.1039/c9ra00498j

Cited by 8 publications

(7 citation statements)

References 53 publications

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“…Among them, Ag nanoparticles (AgNPs) have been used extensively in various domains. Polymer nanocomposite with AgNPs is one of the promising materials due to their wide range of applications such as sensing, [ 20 ] catalytic dye degradation, [ 21 ] antimicrobial applications etc. [ 22 ] Incorporating AgNPs into polymer electrolytes to enhance ionic conductivity is another application that has been studied intensively.…”

Section: Introductionmentioning

confidence: 99%

Tuning the ionic conductivity of flexible polyvinyl alcohol/sodium bromide polymer electrolyte films by incorporating silver nanoparticles for energy storage device applications

Cyriac

Padre

ISMAYIL

et al. 2022

J of Applied Polymer Sci

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In this present work, we have synthesized silver nanoparticles (AgNPs) using the chemical reduction method and systematically studied the effect of AgNPs of different loading into polyvinyl alcohol/sodium bromide (PVA/NaBr) polymer electrolytes. X‐ray diffraction and Fourier transform infrared spectroscopy confirmed the variation in the crystallinity and complexation with AgNPs loading, respectively. AgNPs are uniformly distributed in the polymer matrix as depicted in FESEM. According to transport property studies, it is observed that carrier concentration has a strong influence on ionic conductivity. Additionally, I‐t studies showed that most charge carriers are ions and not electrons. The sample PVA/NaBr with AgNPs, prepared from 6 mM AgNO3 solution (PNAg6) with ionic conductivity 1.22 × 10−4 S cm−1 (one order increase with respect to undoped sample) and highest electrochemical stability window (ESW) of 2.86 V, can be chosen as a suitable candidate for energy storage device applications.

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Section: Introductionmentioning

confidence: 99%

Tuning the ionic conductivity of flexible polyvinyl alcohol/sodium bromide polymer electrolyte films by incorporating silver nanoparticles for energy storage device applications

Cyriac

Padre

ISMAYIL

et al. 2022

J of Applied Polymer Sci

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“…As the surface properties of the NPs are of great importance, the development of uniform, nanometer-sized particles has been extensively studied [ 1 ]. Attracting particular interest is the incorporation of nanoparticles in polymers, which has applications in diverse functional materials—thin optical films [ 2 ], photoswitchable devices [ 3 ], etc. With the continuous development of the field of nanotechnology, a wide variety of polymers have been used to improve their properties, with varying degrees of success, by using both ex-situ and in-situ methods to embed different types of metal nanoparticles [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Blending Approach Preparation of PVA-g-PMA Films with Embedded “Green” Synthesized Silver Nanoparticles for Acetone Optical Detection

Lazarova

Christova

Karashanova

et al. 2023

Sensors

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The blending approach (also known as the ex-situ approach) was used for the deposition of thin composite films comprising poly(vinyl alcohol-graft-methyl acrylate) (PVA-g-PMA) and silver nanoparticles (AgNPs). Firstly, the copolymer aqueous dispersion was synthesized through the redox polymerization of methyl acrylate (MA) on poly(vinyl alcohol) (PVA) using ammonium cerium (IV) nitrate as the initiator. Then, AgNPs were synthesized through a “green” method using the water extract of lavender based on by-products of the essential oil industry, and then they were blended with the polymer. Dynamic light scattering (DLS) and transmission electron microscopy (TEM) were used to determine nanoparticle size, along with their stability over time in suspension, during the 30-day period. Thin films of the PVA-g-PMA copolymer, with different AgNP volume fractions varying between 0.008 and 0.260%, were deposited via the spin-coating method on Si substrates, and their optical properties were explored. UV-VIS-NIR spectroscopy and non-linear curve fitting were used for the determination of the refractive index, extinction coefficient, and thickness of the films, while photoluminescence measurements at room temperature were conducted for studying the emission of the films. The concentration dependence of film thickness was observed and showed that thickness increased linearly from 31 nm to 75 nm when the nanoparticles’ weight content increased from 0.3 wt% to 2.3 wt%. The sensing properties toward acetone vapors were tested in a controlled atmosphere by measuring reflectance spectra before and during exposure to the analyte molecules in the same film spot; the swelling degree of films was calculated and compared to the corresponding undoped samples. It was shown that the concentration of AgNPs of 1.2 wt% in the films is optimal for the enhancement of the sensing response toward acetone. The influence of AgNPs on the films’ properties was revealed and discussed.

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“…Engineered nanomaterials (ENMs) are typically defined as materials smaller than 100 nm in at least one dimension, and they have specific surface functionalizations and size-dependent properties, such as high reactivity and large surface-to-volume ratio, that satisfy their wide range of applications, including in sensing [1][2][3][4][5], optics [6][7][8][9][10], energy [11][12][13][14][15], catalysis [16][17][18][19], biotechnology [20][21][22][23][24] and so on.…”

Section: Introductionmentioning

confidence: 99%

Silver Nanoparticles for Water Pollution Monitoring and Treatments: Ecosafety Challenge and Cellulose-Based Hybrids Solution

et al. 2020

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Silver nanoparticles (AgNPs) are widely used as engineered nanomaterials (ENMs) in many advanced nanotechnologies, due to their versatile, easy and cheap preparations combined with peculiar chemical-physical properties. Their increased production and integration in environmental applications including water treatment raise concerns for their impact on humans and the environment. An eco-design strategy that makes it possible to combine the best material performances with no risk for the natural ecosystems and living beings has been recently proposed. This review envisages potential hybrid solutions of AgNPs for water pollution monitoring and remediation to satisfy their successful, environmentally safe (ecosafe) application. Being extremely efficient in pollutants sensing and degradation, their ecosafe application can be achieved in combination with polymeric-based materials, especially with cellulose, by following an eco-design approach. In fact, (AgNPs)–cellulose hybrids have the double advantage of being easily produced using recycled material, with low costs and possible reuse, and of being ecosafe, if properly designed. An updated view of the use and prospects of these advanced hybrids AgNP-based materials is provided, which will surely speed their environmental application with consequent significant economic and environmental impact.

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Towards sensor applications of a polymer/Ag nanoparticle nanocomposite film

Abstract: We demonstrated the capability of a nanocomposite film made of Ag nanoparticles embedded into a polymer matrix to detect presence of organic vapors.

Cited by 8 publications

References 53 publications

Tuning the ionic conductivity of flexible polyvinyl alcohol/sodium bromide polymer electrolyte films by incorporating silver nanoparticles for energy storage device applications

Tuning the ionic conductivity of flexible polyvinyl alcohol/sodium bromide polymer electrolyte films by incorporating silver nanoparticles for energy storage device applications

Blending Approach Preparation of PVA-g-PMA Films with Embedded “Green” Synthesized Silver Nanoparticles for Acetone Optical Detection

Silver Nanoparticles for Water Pollution Monitoring and Treatments: Ecosafety Challenge and Cellulose-Based Hybrids Solution

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