Fabrication, mechanical properties, and biocompatibility of reduced graphene oxide-reinforced nanofiber mats

RSC Advances ◽  
2014 ◽  
Vol 4 (66) ◽  
pp. 35035-35041 ◽  
Author(s):  
Lin Jin ◽  
Dan Yue ◽  
Zhe-Wu Xu ◽  
Guobin Liang ◽  
Yilei Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tissue Engineering ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
Nanofiber Mats

Graphene-based nanofibers with superior electrical and mechanical properties have been developed for application in tissue engineering.

Preparation of PVA nanocomposites using salep-reduced graphene oxide with enhanced mechanical and biological properties

RSC Advances ◽  
2015 ◽  
Vol 5 (112) ◽  
pp. 92428-92437 ◽  
Author(s):  
Ali Pourjavadi ◽  
Behzad Pourbadiei ◽  
Mohadeseh Doroudian ◽  
Shahram Azari
Keyword(s):  
Mechanical Properties ◽  
Tissue Engineering ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Biological Properties ◽  
Engineering Applications ◽  
Reduced Graphene ◽  
Film Nanocomposites

Hydrogel and film nanocomposites based on PVA with desired mechanical properties are prepared using salep functionalized rGO and proposed as new biomaterials for tissue engineering applications.

The investigation of the electromagnetic shielding effectiveness of multi-layered nanocomposite materials from reduced graphene oxide-doped P(AN-VAc) nanofiber mats/PP spunbond

2018 ◽  
Vol 53 (11) ◽  
pp. 1541-1553
Author(s):  
İsmail Tiyek ◽  
Mustafa Yazıcı ◽  
Mehmet Hakkı Alma ◽  
Şükrü Karataş
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electromagnetic Shielding ◽  
Shielding Effectiveness ◽  
Surface Samples ◽  
Reduced Graphene ◽  
Nanofiber Mats ◽  
Electromagnetic Shielding Effectiveness ◽  
Poly Acrylonitrile ◽  
Shielding Material

In this study, the production of an electromagnetic shielding material by doping reduced graphene oxide was aimed. Graphene oxide was produced from graphite through modified Hummer's method, and reduced graphene oxide was obtained by reducing graphene oxide. The reduced graphene oxide- doped poly(acrylonitrile-co-vinyl acetate) nanofiber mats were spun on the Polypropylene spunbond fabrics by a multi-needle electrospinning device at different lap numbers. Multi-layered surface samples of spunbond/nanofiber mats were obtained via calendaring process after overlapping in different layer numbers. The electromagnetic shielding effectiveness (EMSE) of these samples was measured in the range of 0.03–1.5 GHz according to ASTM D4935 standard. The effects of the numbers of laps and layers on the electromagnetic shielding effectiveness of the mats were also investigated. It was found that electromagnetic shielding effectiveness is greatly affected by changing the numbers of laps and layers. Consequently, the highest electromagnetic shielding effectiveness value of 35.49 dB was obtained from the sample containing two layers of nanofiber mats, each of which consisted 50 laps of nanofibers.

Thermal and mechanical properties of copper-graphite and copper-reduced graphene oxide composites

2019 ◽  
Vol 163 ◽  
pp. 77-85 ◽  
Author(s):  
Faisal Nazeer ◽  
Zhuang Ma ◽  
Lihong Gao ◽  
Fuchi Wang ◽  
Muhammad Abubaker Khan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Thermal And Mechanical Properties ◽  
Reduced Graphene ◽  
Oxide Composites

Solvothermally reduced graphene oxide/polyimide composites: Structures and thermal and mechanical properties

2018 ◽  
Vol 136 (10) ◽  
pp. 47164 ◽  
Author(s):  
Xin Zhang ◽  
Yahui Ma ◽  
Yingjin Pei ◽  
Shuojin Zheng ◽  
Qinghong Fang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Thermal And Mechanical Properties ◽  
Reduced Graphene ◽  
Polyimide Composites

scholarly journals The influence of reduced graphene oxide on stem cells: a perspective in peripheral nerve regeneration

2021 ◽  
Vol 8 (4) ◽  
Author(s):  
Xiangyun Yao ◽  
Zhiwen Yan ◽  
Xu Wang ◽  
Huiquan Jiang ◽  
Yun Qian ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Stem Cells ◽  
Graphene Oxide ◽  
Peripheral Nerve ◽  
Nerve Regeneration ◽  
Reduced Graphene Oxide ◽  
Peripheral Nerve Regeneration ◽  
Embryonic Stem ◽  
Composite Scaffolds ◽  
Reduced Graphene

Abstract Graphene and its derivatives are fascinating materials for their extraordinary electrochemical and mechanical properties. In recent decades, many researchers explored their applications in tissue engineering and regenerative medicine. Reduced graphene oxide (rGO) possesses remarkable structural and functional resemblance to graphene, although some residual oxygen-containing groups and defects exist in the structure. Such structure holds great potential since the remnant-oxygenated groups can further be functionalized or modified. Moreover, oxygen-containing groups can improve the dispersion of rGO in organic or aqueous media. Therefore, it is preferable to utilize rGO in the production of composite materials. The rGO composite scaffolds provide favorable extracellular microenvironment and affect the cellular behavior of cultured cells in the peripheral nerve regeneration. On the one hand, rGO impacts on Schwann cells and neurons which are major components of peripheral nerves. On the other hand, rGO-incorporated composite scaffolds promote the neurogenic differentiation of several stem cells, including embryonic stem cells, mesenchymal stem cells, adipose-derived stem cells and neural stem cells. This review will briefly introduce the production and major properties of rGO, and its potential in modulating the cellular behaviors of specific stem cells. Finally, we present its emerging roles in the production of composite scaffolds for nerve tissue engineering.

Reduced Graphene Oxide Paper: Fabrication by a Green Thermal Reduction Method and Preliminary Study of its In Vitro Cytotoxicity

2017 ◽  
Vol 45 ◽  
pp. 199-207 ◽  
Author(s):  
Xin Wang ◽  
Peng Li ◽  
Claudia Luedecke ◽  
Qiang Zhang ◽  
Zan Wang ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Mammalian Cells ◽  
Reduction Method ◽  
Heating Temperature ◽  
Synthesis Method ◽  
Thermal Reduction ◽  
Graphene Films ◽  
Reduced Graphene

Graphene films have been intensively explored because of their unique mechanical and physicochemical properties for potential applications in field of tissue engineering and implants. However, for biomedical applications, it is necessary to fully understand the toxicity and biocompatibility of the prepared graphene films since different synthesis method might lead to different biological properties. Here we report a step-by-step thermal reduction method of preparing reduced graphene oxide (rGO) film directly on various substrates at low heating temperature (below about 200 °C) without requiring any chemical reduction agent like hydrazine or other reductants (therefore we call it green method). Slowly heating GO hydrosol that was coated on the surface of a glass cell-culture dish or inside of a polypropylene tube from room temperature to 60, 100, and 160 °C for 12 h, respectively, a shiny and flat surface without crumpled structure or tiny pores was formed. We peeled it off from the substrate to explore its cytotoxicity. The results exhibited that the rGO film was biocompatible with Cal-72 cell but against Escherichia coli bacteria. Our work confirmed that rGO film produced by the green reduction method is cytocompatible with mammalian cells, which makes this rGO film a promising material for tissue engineering scaffold or as a surface-modification coating of an implant.

scholarly journals Correction: Manipulating selective dispersion of reduced graphene oxide in polycarbonate/nylon 66 based blend nanocomposites for improved thermo-mechanical properties

RSC Advances ◽  
2017 ◽  
Vol 7 (52) ◽  
pp. 32731-32731 ◽  
Author(s):  
Santosh Kr. Tiwari ◽  
Kartikey Verma ◽  
Pupulata Saren ◽  
Ramesh Oraon ◽  
Amrita De Adhikari ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Nylon 66 ◽  
Reduced Graphene ◽  
Blend Nanocomposites

Correction for ‘Manipulating selective dispersion of reduced graphene oxide in polycarbonate/nylon 66 based blend nanocomposites for improved thermo-mechanical properties’ by Santosh Kr. Tiwari et al., RSC Adv., 2017, 7, 22145–22155.

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