Influence of chitin nanocrystals on the dielectric behaviour and conductivity of chitosan-based bionanocomposites

Salaberria, Asier M.; Teruel-Juanes, R.; Badía, J.D.; Fernandes, Susana C. M.; Juano-Arbona, V. Sáenz de; Labidi, Jalel; Ribes‐Greus, A.

doi:10.1016/j.compscitech.2018.08.019

Cited by 22 publications

(19 citation statements)

References 70 publications

(59 reference statements)

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“…The dielectric analysis of polymer materials and composites permits understanding the macromolecular relaxations [ 33 , 34 , 35 , 36 ] and is also a valuable approach for evaluating their conductivity and electric response. In this sense, Figure 7 , Figure 8 , Figure 9 and Figure 10 show the dielectric spectra of the EVOH and EVOH/GNP fibers in terms of ε′, ε″, tan δ, and M″, respectively, in all the frequency range at 25 °C.…”

Section: Resultsmentioning

confidence: 99%

Electrospun Poly(ethylene-co-vinyl alcohol)/Graphene Nanoplatelets Composites of Interest in Intelligent Food Packaging Applications

et al. 2018

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Graphene nanoplatelets (GNPs) were synthetized from graphite powder and, thereafter, embedded in poly(ethylene-co-vinyl alcohol) (EVOH) fibers by electrospinning in the 0.1–2 wt.-% range. The morphological, chemical, and thermal characterization performed on the electrospun nanocomposite fibers mats revealed that the GNPs were efficiently dispersed and rolled along the EVOH fibrilar matrix up to contents of 0.5 wt.-%. Additionally, the dielectric behavior of the nanocomposite fibers was evaluated as a function of the frequency range and GNPs content. The obtained results indicated that their dielectric constant rapidly decreased with the frequency increase and only increased at low GNPs loadings while the nanocomposite fiber mats became electrically conductive, with the maximum at 0.5 wt.-% GNPs content. Finally, the electrospun mats were subjected to a thermal post-treatment and dark films with a high contact transparency were obtained, suggesting that the nanocomposites can be used either in a nonwoven fibers form or in a continuous film form. This study demonstrates the potential of electrospinning as a promising technology to produce GNPs-containing materials with high electrical conductivity that can be of potential interest in intelligent packaging applications as “smart” labels or tags.

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Section: Resultsmentioning

confidence: 99%

Electrospun Poly(ethylene-co-vinyl alcohol)/Graphene Nanoplatelets Composites of Interest in Intelligent Food Packaging Applications

et al. 2018

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“…In 2001 Paillet and Dufresne used chitin nanocrystals for the first time as ecofriendly reinforcing fillers in thermoplastic nanocomposites [145]. In the following years, new domains of exploitation of chitin nanofillers have emerged including bionanocomposite materials, electronics and medical devices [43,[146][147][148][149][150][151]].…”

Section: Marine Nanofillers For Structural Applicationsmentioning

confidence: 99%

Marine-Derived Polymeric Materials and Biomimetics: An Overview

et al. 2020

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The review covers recent literature on the ocean as both a source of biotechnological tools and as a source of bio-inspired materials. The emphasis is on marine biomacromolecules namely hyaluronic acid, chitin and chitosan, peptides, collagen, enzymes, polysaccharides from algae, and secondary metabolites like mycosporines. Their specific biological, physicochemical and structural properties together with relevant applications in biocomposite materials have been included. Additionally, it refers to the marine organisms as source of inspiration for the design and development of sustainable and functional (bio)materials. Marine biological functions that mimic reef fish mucus, marine adhesives and structural colouration are explained.

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“…Chitosan (CS) is a biocompatible and biodegradable natural polymer, commonly used in the biomedical field [30][31][32][33]. By incorporating AgNPs into CS, one can obtain anti-microbial nanocomposites that can be used for a wide range of applications such as wound dressings, tissue engineering, drug delivery and water treatment, etc [34][35][36].…”

Section: Oh• H• and O•)mentioning

confidence: 99%

Atmospheric pressure microplasma for antibacterial silver nanoparticle/chitosan nanocomposites with tailored properties

Sun

Turner

Jiang

et al. 2020

Composites Science and Technology

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Room temperature atmospheric pressure microplasma (APM) was deployed for the first time for the in situ synthesis of anti-bacterial silver nanoparticle/chitosan (AgNP/CS) nanocomposites. The plasma induced liquid chemistry plays a role in the in situ formation of AgNP, the size distribution of which depends on the silver salt precursor concentration. The microplasma process has also simultaneously tailored the physical properties of the composites, through molecular chain scission and formation of physically crosslinked polymer network. The formation of AgNP within the in situ modified chitosan has led to nanocomposites with overall improved mechanical properties and better stability in simulated body fluid. Our plasma synthesized AgNP/CS nanocomposites also demonstrate effective antibacterial properties against E. coli and S. aureus bacterial strains, showing their promise in potential antimicrobial applications.

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Influence of chitin nanocrystals on the dielectric behaviour and conductivity of chitosan-based bionanocomposites

Abstract: A. Ribes-Greus. Influence of chitin nanocrystals on the dielectric behaviour and conductivity of chitosan-based bionanocomposites. Composites Science and Technology 2018; 167:323-330

Cited by 22 publications

References 70 publications

Electrospun Poly(ethylene-co-vinyl alcohol)/Graphene Nanoplatelets Composites of Interest in Intelligent Food Packaging Applications

Electrospun Poly(ethylene-co-vinyl alcohol)/Graphene Nanoplatelets Composites of Interest in Intelligent Food Packaging Applications

Marine-Derived Polymeric Materials and Biomimetics: An Overview

Atmospheric pressure microplasma for antibacterial silver nanoparticle/chitosan nanocomposites with tailored properties

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