Aramid Nanofibers/Reduced Graphene Oxide Composite Electrodes with High Mechanical Properties

Wang, Jingyi; Li, Shaojie; Ye, Mingyu; Zhan, Xiaowan; Liao, Xin; Melo, Antonio Francisco Arcanjo de Araújo

doi:10.3390/nano13010103

Cited by 4 publications

(1 citation statement)

References 62 publications

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“…Reduced graphene oxide (rGO), which is produced from graphene is the ideal functional modifier for materials due to its excellent mechanical rigidity, biocompatibility, and a unique two‐dimensional structure. Electrical activity of CS and other materials is greatly increased by the addition of rGO, and promote collagen deposition in wound tissue, thereby accelerating wound healing 5 6 . Additionally, electroactive materials possess effective charge conduction 7 .…”

Section: Introductionmentioning

confidence: 99%

Synergistic effects of electroactive antibacterial material and electrical stimulation in enhancing skin tissue regeneration: A next‐generation dermal wound dressing

Zang,

Gao,

Zhang

et al. 2023

Skin Research and Technology

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ObjectiveWe aimed to develop an electroactive antibacterial material for the treatment of skin wound diseases.MethodTo this aim, we modified chitosan (CS), a biocompatible polymer, by coupling it with graphene (rGO) and an antimicrobial polypeptide DOPA‐PonG1. The material's effect on skin injury healing was studied in combination with external electrical stimulation (EEM). The structure, surface composition, and hydrophilicity of the modified CS materials were evaluated using scanning electron microscopy (SEM), Fourier‐transform infrared spectroscopy (FTIR), and contact angle measurements. We studied NIH3T3 cells cultured with modified materials and subjected to EEM to assess viability, adhesion, and tissue repair‐related gene expression.ResultsSEM data demonstrated that rGO was distributed uniformly on the surface of the CS material, increasing surface roughness, and antimicrobial peptides had minimal impact on surface morphology. FTIR confirmed the uniform distribution of rGO and antibacterial peptides on the material surface. Both rGO and DOPA‐PonG1 enhanced the hydrophilicity of CS materials, with rGO also improving tensile strength. The dual modification of CS with rGO and DOPA‐PonG1 synergistically increased antibacterial efficacy. Cellular events and gene expression relevant to tissue repair process were enhanced by these modifications. Furthermore, EEM accelerated epidermal regeneration more than the material alone. In a rat skin wound model, DOPA‐PonG1@CS/rGO dressing combined with electrical stimulation exhibited accelerated healing of skin defect.ConclusionOverall, our results demonstrate that CS materials modified with rGO and DOPA‐PonG1 have increased hydrophilicity, antibacterial characteristics, and tissue regeneration capacities. This modified material in conjunction with EEM hold promise for the clinical management for dermal wounds.

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Section: Introductionmentioning

confidence: 99%

Synergistic effects of electroactive antibacterial material and electrical stimulation in enhancing skin tissue regeneration: A next‐generation dermal wound dressing

Zang,

Gao,

Zhang

et al. 2023

Skin Research and Technology

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Modulating Electrochemical Energy Storage and Multi‐Spectra Defense of MXenes by Interfacial Dual‐Filler Engineering

Chen,

Guo,

Liu

et al. 2024

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MXenes have attracted growing interest in electrochemical energy storage owing to their high electronic conductivity and editable surface chemistry. Besides, rendering MXenes with spectrum defense properties further broadens their versatile applications. However, the development of MXenes suffers from weak van der Waal interaction‐driven self‐restacking that leads to random alignment and inferior interface microenvironments. Herein, a nacre‐inspired MXene film is tailored by dual‐filling of 2‐ureido‐4[1H]‐pyrimidinone (UPy)‐modified polyvinyl alcohol (PVA‐UPy) and carbon nanotubes (CNTs). The dual‐nanofillers engineering endows the nanocomposite film with a highly ordered structure (a Herman's order value of 0.838), a high mechanical strength (139.5 MPa), and continuous conductive pathways of both the ab plane and c‐axis. As a proof‐of‐concept, the tailored nanocomposite film achieves a considerable capacitance of 508.2 F cm−3 and long‐term cycling stability without performance degradation for 10 000 cycles. It is efficient for spectra defense in radar and infrared bands, displaying a high electromagnetic shielding capacity (19186 dB cm2 g−1) and a super‐low infrared (IR) emissivity (0.16), with negligible performance decay after saving in the air for 1 year, responsible for the applications in specific and complex conditions. This interfacial dual‐filler engineering concept showcases effective nanotechnology toward sustainable energy applications with a long lifetime and safety.

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Rheology-tailored stable aramid nanofiber suspensions for fabricating ultra-strong and electrically insulated additive-free nanopapers

Song,

Kim,

Hwan Lee

et al. 2023

Chemical Engineering Journal

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Aramid Nanofibers/Reduced Graphene Oxide Composite Electrodes with High Mechanical Properties

Cited by 4 publications

References 62 publications

Synergistic effects of electroactive antibacterial material and electrical stimulation in enhancing skin tissue regeneration: A next‐generation dermal wound dressing

Synergistic effects of electroactive antibacterial material and electrical stimulation in enhancing skin tissue regeneration: A next‐generation dermal wound dressing

Modulating Electrochemical Energy Storage and Multi‐Spectra Defense of MXenes by Interfacial Dual‐Filler Engineering

Rheology-tailored stable aramid nanofiber suspensions for fabricating ultra-strong and electrically insulated additive-free nanopapers

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