Amino acid mediated synthesis of silver nanoparticles and preparation of antimicrobial agar/silver nanoparticles composite films

Shankar, Shiv; Rhim, Jong‐Whan

doi:10.1016/j.carbpol.2015.05.018

Cited by 258 publications

(118 citation statements)

References 38 publications

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“…The FT-IR analysis showed some new evidence on the influence of AgCl-NPs on some functional groups. Obtained data varies with those from earlier reports with AgNPs [1,24,26,33,36]. …”

Section: Discussionsupporting

confidence: 56%

See 1 more Smart Citation

Exopolysaccharide-Based Bioflocculant Matrix of Azotobacter chroococcum XU1 for Synthesis of AgCl Nanoparticles and Its Application as a Novel Biocidal Nanobiomaterial

et al. 2016

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A simple and green method was developed for the biosynthesis of AgCl nanoparticles, free from Ag nanoparticles, using the exopolysaccharide-based bioflocculant of nitrogen fixing Azotobacter chroococcum XU1 strain. AgCl nanoparticles were characterized by UV-Vis, X-ray diffraction (XRD), Fourier Transform-Infra Red (FT-IR) and Scanning electron microscopy-energy dispersive X-ray (SEM-EDX). The concentration-dependent and controllable method for the synthesis of AgCl nanoparticles of a certain size and morphology was developed. As-synthesized AgCl nanoparticles were characterized bya high content of AgCl and exhibited strong antimicrobial activity towards pathogenic microorganisms such as E. coli, S. aureus and C. albicans. The biofabricated AgCl nanoparticles can be exploited as a promising new biocidalbionanocomposite against pathogenic microorganisms.

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“…The FT-IR analysis showed some new evidence on the influence of AgCl-NPs on some functional groups. Obtained data varies with those from earlier reports with AgNPs [1,24,26,33,36]. …”

Section: Discussionsupporting

confidence: 56%

“…In some cases, when the polysaccharide matrix is used for the impregnation of nanoparticles, the absorption maxima of polysaccharides remain unaffected [32,33]. However, when the polysaccharide template is used as a reducing and stabilizing agent, slight changes in the absorption maxima of polysaccharides are observed.…”

Section: Resultsmentioning

confidence: 99%

Exopolysaccharide-Based Bioflocculant Matrix of Azotobacter chroococcum XU1 for Synthesis of AgCl Nanoparticles and Its Application as a Novel Biocidal Nanobiomaterial

et al. 2016

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“…Roy et al [47], who synthesized silver nanoparticles by a green method and incorporated them into carrageenan, obtained nanocomposite films that were less transparent than neat carrageenan films, with a yellowish-brown colour. The presence of yellow colour in the composite films might be due to the yellow colour of silver nanoparticles, which was also observed by others [22,48,49]. The authors observed that the addition of silver nanoparticles not only affected the colour of the films but also improved the UV light barrier property and thermal stability of nanocomposite films.…”

Section: Physical Properties Of Edible Films With Incorporated Silversupporting

confidence: 67%

Biopolymers-Based Materials Containing Silver Nanoparticles as Active Packaging for Food Applications–A Review

Kraśniewska

Galus

Gniewosz

2020

IJMS

191

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Packaging is an integral part of food products, allowing the preservation of their quality. It plays an important role, protecting the packed product from external conditions, maintaining food quality, and improving properties of the packaged food during storage. Nevertheless, commonly used packaging based on synthetic non-biodegradable polymers causes serious environmental pollution. Consequently, numerous recent studies have focused on the development of biodegradable packaging materials based on biopolymers. In addition, biopolymers may be classified as active packaging materials, since they have the ability to carry different active substances. This review presents the latest updates on the use of silver nanoparticles in packaging materials based on biopolymers. Silver nanoparticles have become an interesting component of biodegradable biopolymers, mainly due to their antimicrobial properties that allow the development of active food packaging materials to prolong the shelf life of food products. Furthermore, incorporation of silver nanoparticles into biopolymers may lead to the development of materials with improved physical-mechanical properties.

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“…The tensile strength decreased with an increase in the AgNP content, and this phenomenon was also noted in some previous reports. 37,38 Although the tensile strengths of CTS-SF Ag were less than that of the CTS-SF dressing, these tensile strengths are suitable for wound care applications. Fig.…”

Section: -36mentioning

confidence: 99%

An asymmetric wettable chitosan–silk fibroin composite dressing with fixed silver nanoparticles for infected wound repair: in vitro and in vivo evaluation

et al. 2017

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The treatment of large-area infected wounds remains a significant challenge, as there is no effective wound dressing for infected wound healing applicable to clinical applications. In this study, chitosan-silk fibroin composite scaffolds containing silver nanoparticles (AgNP) that underwent asymmetric modification were fabricated for tissue engineering dressings. The scaffolds were prepared from a solution containing a chitosan-silk-fibroin emulsion with added AgNPs using a lyophilization approach and with an asymmetric coating on the surface of one side. Transmission electron microscopy images and laser particle size analysis showed the AgNP distribution, scanning electron microscopy images showed the surface morphology of the dressings, and inductively coupled plasma mass spectrometry showed the silver content. The asymmetric wettability of the dressings was measured using a contact angle meter.High porosity, good moisture retention capability and appropriate tensile strength were observed by measuring the physical and mechanical properties. Good antimicrobial properties towards various bacteria were observed via in vitro antibacterial effect analysis. Controlled AgNP release by the dressings and their resistance to the infiltration of microorganisms were also observed in our experiments. A highly biocompatible dressing was observed by the MTT assay experiment and subcutaneous sensitization test.Moreover, the effects of the dressings on infected wound healing were measured in mice infected wound models. Analysis of the wound healing rate, bacterial cultures of the exudate, blood samples and histological examination all provided satisfactory results. These results demonstrate that the dressings we prepared offer the potential for infected wound tissue repair and regeneration.

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Amino acid mediated synthesis of silver nanoparticles and preparation of antimicrobial agar/silver nanoparticles composite films

Cited by 258 publications

References 38 publications

Exopolysaccharide-Based Bioflocculant Matrix of Azotobacter chroococcum XU1 for Synthesis of AgCl Nanoparticles and Its Application as a Novel Biocidal Nanobiomaterial

Exopolysaccharide-Based Bioflocculant Matrix of Azotobacter chroococcum XU1 for Synthesis of AgCl Nanoparticles and Its Application as a Novel Biocidal Nanobiomaterial

Biopolymers-Based Materials Containing Silver Nanoparticles as Active Packaging for Food Applications–A Review

An asymmetric wettable chitosan–silk fibroin composite dressing with fixed silver nanoparticles for infected wound repair: in vitro and in vivo evaluation

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