Electrospun Graphene Oxide-Based Nanofibres

Wahab, Izzati Fatimah; Razak, Saiful Izwan Abd; Azmi, Farah Nuruljannah Dahli Nor Syuhada; Yusof, Abdul Halim Mohd; Nayan, NadirulHasraf Mat

doi:10.5772/64055

Cited by 13 publications

(13 citation statements)

References 57 publications

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“…Shear and extensional flows are the dominating forces when referring to orientation of fillers in composites under flow. It has been demonstrated that anisotropic particles such as short fibers, rods, and nanotubes can be aligned through extrusion and injection molding [11,18] which are shear dominant processes, and through fiber spinning or postelongation processes in which extensional flow is observed [20,21,30,31]. In this section, both approaches will be reviewed.…”

Section: Flow-assisted Alignment Of Particles In Polymer Compositesmentioning

confidence: 99%

“…This type of flow behavior is fundamental in processing techniques such as blow molding and thermoforming. It is also the dominant phenomenon in fiber spinning processes including electrospinning [20,21,43]. With electrospinning, it is possible to produce polymer fibers with thickness from tens of nanometers to several microns and has the potential of aligning embedded particles in direction of the flow.…”

Section: Flow-assisted Alignment Of Particles In Polymer Compositesmentioning

confidence: 99%

“…Orientation of the filler in the composite fibers depends on its shape and dispersion. Carbon nanotubes and graphene oxide sheets have been widely studied in electro-spun systems, some of which have been previously reviewed [20,21].…”

Section: Flow-assisted Alignment Of Particles In Polymer Compositesmentioning

confidence: 99%

“…Producing anisotropic materials implies controlling the spatial distribution and orientation of the fillers, which is one of the current challenges in micro and nanoscale materials science and engineering [11]. Processes such as extrusion [18], fiber spinning [19][20][21], self-assembly via solvent-particle or particle-particle interactions [22], layer-by-layer assembly via dipping or spraying [23,24], or the use of external stimuli such as electric [25] or magnetic [26] field, have been used to develop anisotropic polymer composites.…”

Section: Introductionmentioning

confidence: 99%

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Strategies for the preparation of polymer composites with complex alignment of the dispersed phase

Sierra-Romero

Chen

2018

Nanocomposites

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The design and production of anisotropic composites and nanocomposites has become increasingly relevant in materials science and engineering because they provide an opportunity of enhancing and adapting the properties of a material for specialized applications. This article reviews the strategies that have been developed to achieve anisotropy based on the position and orientation of the dispersed phase in polymer composites including polymer nanocomposites. Flow and electric field-driven alignment methodologies are briefly described, which is followed by a focus on magnetically oriented composites. The use of magnetic fields for this purpose has been of particular interest in recent years due to its ease of use and the variety of materials on which this method can be applied. Strong magnetic fields are required to align diamagnetic fillers. However, the modification of particles with low magnetic susceptibilities with magnetic nanoparticles (i.e. iron oxide nanoparticles) has been proven to be a successful approach to broaden the capabilities of magnetic alignment in polymer composites. The development of filler manipulation techniques opens the possibility to mimic complex biological structures that promise to improve the mechanical properties of bioinspired composites and even achieve advanced functionalities in self-shaping materials for example.

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Section: Flow-assisted Alignment Of Particles In Polymer Compositesmentioning

confidence: 99%

Section: Flow-assisted Alignment Of Particles In Polymer Compositesmentioning

confidence: 99%

Section: Flow-assisted Alignment Of Particles In Polymer Compositesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Strategies for the preparation of polymer composites with complex alignment of the dispersed phase

Sierra-Romero

Chen

2018

Nanocomposites

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“…Developing functionalized polymer materials such as conductive nanofibers from abundant and biodegradable biopolymers is more challenging and has attracted an increasing amount of attention for the benefit of energy utilization and the environment [1]. A number of synthetic polymers, such as poly(vinyl alcohol) (PVA), polyacrylonitrile (PAN), polyaniline (PANI) and poly(vinyl pyrrolidone) (PVP), have been successfully combined with graphene sheets and carbon nanotubes to produce conductive nanofibers [8,9]. However, very few contributions have been made to the electrospinning of biopolymers with carbon nanotubes or graphene.…”

Section: Introductionmentioning

confidence: 99%

A method for producing conductive graphene biopolymer nanofibrous fabrics by exploitation of an ionic liquid dispersant in electrospinning

Javed

Krumme

Viirsalu

et al. 2018

Carbon

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Owing to its high conductivity, graphene has been incorporated into polymeric nanofibers to create advanced materials for flexible electronics, sensors and tissue engineering. Typically, these graphenebased nanofibers are prepared by electrospinning synthetic polymers, whereas electrospun graphenebiopolymer nanofibers have been rarely reported due to the poor compatibility of graphene with biopolymers. Herein, we report a new method for the preparation of graphene-biopolymer nanofibers using the judicious combination of an ionic liquid and electrospinning. Cellulose acetate (CA) has been used as the biopolymer, graphene oxide (GO) nanoparticles as the source of graphene and 1-butyl-3methylimidazolium chloride ([BMIM]Cl) as the ionic liquid (IL) to create CA-[BMIM]Cl-GO nanofibers by electrospinning for the first time. Moreover, we developed a new route to convert CA-[BMIM]Cl-GO nanofibers to reduced GO nanofibers using hydrazine vapor under ambient conditions to enhance the conductivity of the hybrid nanofibers. The graphene sheets were shown to be uniformly *

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Recent advancements in natural polymers‐based self‐healing nano‐materials for wound dressing

Anand,

Sharma,

Sharma

2024

J Biomed Mater Res

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The field of wound healing has witnessed remarkable progress in recent years, driven by the pursuit of advanced wound dressings. Traditional dressing materials have limitations like poor biocompatibility, nonbiodegradability, inadequate moisture management, poor breathability, lack of inherent therapeutic properties, and environmental impacts. There is a compelling demand for innovative solutions to transcend the constraints of conventional dressing materials for optimal wound care. In this extensive review, the therapeutic potential of natural polymers as the foundation for the development of self‐healing nano‐materials, specifically for wound dressing applications, has been elucidated. Natural polymers offer a multitude of advantages, possessing exceptional biocompatibility, biodegradability, and bioactivity. The intricate engineering strategies employed to fabricate these polymers into nanostructures, thereby imparting enhanced mechanical robustness, flexibility, critical for efficacious wound management has been expounded. By harnessing the inherent properties of natural polymers, including chitosan, alginate, collagen, hyaluronic acid, and so on, and integrating the concept of self‐healing materials, a comprehensive overview of the cutting‐edge research in this emerging field is presented in the review. Furthermore, the inherent self‐healing attributes of these materials, wherein they exhibit innate capabilities to autonomously rectify any damage or disruption upon exposure to moisture or body fluids, reducing frequent dressing replacements have also been explored. This review consolidates the existing knowledge landscape, accentuating the benefits and challenges associated with these pioneering materials while concurrently paving the way for future investigations and translational applications in the realm of wound healing.

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Electrospun Graphene Oxide-Based Nanofibres

Cited by 13 publications

References 57 publications

Strategies for the preparation of polymer composites with complex alignment of the dispersed phase

Strategies for the preparation of polymer composites with complex alignment of the dispersed phase

A method for producing conductive graphene biopolymer nanofibrous fabrics by exploitation of an ionic liquid dispersant in electrospinning

Recent advancements in natural polymers‐based self‐healing nano‐materials for wound dressing

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