Characterization of Graphene-Silk Fibroin Composites Film

Yusoff, Noor Izyan Syazana Mohd; Wahit, Mat Uzir; Jaafar, Juhana; Wong, Tuck‐Whye

doi:10.1016/j.matpr.2018.07.042

Cited by 7 publications

(3 citation statements)

References 22 publications

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“…The addition of (r)GO into the silk system has previously been reported to lead to changes in the amount of β-sheet structures after ethanol treatment [63][64][65]. The chemical structure of SF was analyzed by FTIR-ATR (Fig.…”

Section: Molecular Structure Of Silk and The Effect Of Graphene Derivativesmentioning

confidence: 99%

Graphene oxide and electroactive reduced graphene oxide-based composite fibrous scaffolds for engineering excitable nerve tissue

Magaz

Gough

et al. 2021

Materials Science and Engineering: C

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This study systematically investigates the role of graphene oxide (GO) and reduced GO/silkbased composite micro/nano-fibrous scaffolds in regulating neuronal cell behavior in vitro, given the limited comparative studies on the effects of graphene family materials on nerve regeneration. Fibrous scaffolds can mimic the architecture of the native extracellular matrix and are potential candidates for tissue engineering peripheral nerves. Silk/GO micro/nanofibrous scaffolds were electrospun with GO loadings 1% to 10% wt., and optionally postreduced in situ to explore a family of electrically conductive non-woven silk/rGO scaffolds.Conductivities up to 4×10 −5 S cm −1 were recorded in the dry state, which increased up to 3×10 −4 S cm −1 after hydration. Neuronoma NG108-15 cells adhered and were viable on all substrates.Enhanced metabolic activity and proliferation were observed on the GO-containing scaffolds, and these cell responses were further promoted for electroactive silk/rGO. Neurite extensions up to 100 μm were achieved by day 5, with maximum outgrowth up to ~250 μm on some of the conductive substrates. These electroactive composite fibrous scaffolds exhibit potential to enhance the neuronal cell response and could be versatile supportive substrates for neural tissue engineering applications.

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Section: Molecular Structure Of Silk and The Effect Of Graphene Derivativesmentioning

confidence: 99%

Graphene oxide and electroactive reduced graphene oxide-based composite fibrous scaffolds for engineering excitable nerve tissue

Magaz

Gough

et al. 2021

Materials Science and Engineering: C

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“…Izyan et al [ 122 ] evaluated the properties of graphene flakes dispersed into silk films, reporting an increase in β-sheet conformation, increasing both the crystallinity and the elongation at failure compared with neat silk materials. The modulation of the properties of silk can also be performed by directly acting on the feed of silk worms, as reported by Qu et al [ 123 ].…”

Section: Carbon-containing Biopolymer Composites For Biomedical Appli...mentioning

confidence: 99%

A Short Review on Nanostructured Carbon Containing Biopolymer Derived Composites for Tissue Engineering Applications

2023

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The development of new scaffolds and materials for tissue engineering is a wide and open realm of material science. Among solutions, the use of biopolymers represents a particularly interesting area of study due to their great chemical complexity that enables creation of specific molecular architectures. However, biopolymers do not exhibit the properties required for direct application in tissue repair—such as mechanical and electrical properties—but they do show very attractive chemical functionalities which are difficult to produce through in vitro synthesis. The combination of biopolymers with nanostructured carbon fillers could represent a robust solution to enhance composite properties, producing composites with new and unique features, particularly relating to electronic conduction. In this paper, we provide a review of the field of carbonaceous nanostructure-containing biopolymer composites, limiting our investigation to tissue-engineering applications, and providing a complete overview of the recent and most outstanding achievements.

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“…Different methods have been explored to incorporate high conductivity levels for silk-fibroin based systems, which are based on the interaction of fiber with fillers, such as carbon derivatives (graphene and carbon nanostructures), conducting polymers (polypyrrole, polyaniline, PEDOT: PSS) and gold/silver nanoparticles. These methods for surface modification are based on solution casting [24], dry-pun, LbL, chemical polymerization, reduction of metal ions to metal nanoparticles [25], etc. On the other hand, the carbonization makes use of the rich structure of silk fibroins to produced Ndoped porous carbon, with advantages for pseudocapacitive based-materials applied as electrodes of supercapacitors and anode of batteries.…”

Section: Introductionmentioning

confidence: 99%

The State of the Art of Energy Harvesting and Storage in Silk Fibroin-Based Wearable and Implantable Devices

Lima¹,

Oliveira²

2020

Electrochem

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The energy autonomy of self-powered wearable electronics depends on the adequate development of new technologies for energy harvesting and energy storage devices based on textile fibers to facilitate the integration with truly flexible and wearable devices. Silk fiber-based systems are attractive for the design of biomedical devices, lithium-ion batteries and flexible supercapacitors, due to their nitrogen-rich structure (for preparation of hierarchical carbon-based structures), and available surface for chemical modification reinforcing electroactive properties for use in batteries and supercapacitors. Herein, this paper reviews recent advances on silk fiber-based systems for harvesting and the storage of energy and the corresponding strategies to reinforce the physical and chemical properties of the resulting composites applied as electrodes and battery separators.

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Characterization of Graphene-Silk Fibroin Composites Film

Cited by 7 publications

References 22 publications

Graphene oxide and electroactive reduced graphene oxide-based composite fibrous scaffolds for engineering excitable nerve tissue

Graphene oxide and electroactive reduced graphene oxide-based composite fibrous scaffolds for engineering excitable nerve tissue

A Short Review on Nanostructured Carbon Containing Biopolymer Derived Composites for Tissue Engineering Applications

The State of the Art of Energy Harvesting and Storage in Silk Fibroin-Based Wearable and Implantable Devices

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