Thermally Reduced Graphene Oxide/Thermoplastic Polyurethane Nanocomposites: Mechanical and Barrier Properties

Maldonado-Magnere, Santiago; Yazdani‐Pedram, Mehrdad; Aguilar-Bolados, Héctor; Quijada, Raúl

doi:10.3390/polym13010085

Cited by 13 publications

(5 citation statements)

References 29 publications

(35 reference statements)

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“…With the increase of GDs content, the mechanical properties of composite materials show a trend of increasing at first and then decreasing (Du et al, 2020). In addition, different interface binding modes (Compton et al, 2012;Park et al, 2008), oxygen content in GO (Maldonado-Magnere et al, 2020), and different manufacturing processes (Gallardo-Lopez et al, 2020) can affect the mechanical properties of graphene composites, which makes the mechanical properties of graphene composites tunable. Therefore, it is theoretically possible for GMs to mimic the properties of bone, which is extremely exciting in bone tissue engineering.…”

Section: Mechanical Propertymentioning

confidence: 99%

Osteoinductive and antimicrobial mechanisms of graphene‐based materials for enhancing bone tissue engineering

Zou

Jiang

et al. 2021

J Tissue Eng Regen Med

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Graphene-based materials (GMs) have great application prospects in bone tissue engineering due to their osteoinductive ability and antimicrobial activity. GMs induce osteogenic differentiation through several mechanisms and pathways in bone tissue engineering. First of all, the surface and high hardness of the porous folds of graphene or graphene oxide (GO) can generate mechanical stimulation to initiate a cascade of reactions that promote osteogenic differentiation without any chemical inducers. In addition, change of the extracellular matrix (ECM), regulation of macrophage polarization, the oncostatin M (OSM) signaling pathway, the MAPK signaling pathway, the BMP signaling pathway, the Wnt/β-catenin signaling pathway, and other pathways are involved in GMs' regulation of osteogenesis. In bone tissue engineering, GMs prevent the formation of microbial biofilms mainly through preventing microbial adhesion and killing them. The former is mainly achieved by reducing surface free energy (SFE) and increasing hydrophobicity. The latter mainly includes oxidative stress and photothermal/photodynamic effects.Graphene and its derivatives (GDs) are mainly combined with bioactive ceramic materials, metal materials and macromolecular polymers to play an antimicrobial effect in bone tissue engineering. Concentration, number of layers, and type of GDs often affect the antimicrobial activity of GMs. In this paper, we reviewed relevant osteoinductive and antimicrobial mechanisms of GMs and their applications in bone tissue engineering.

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Section: Mechanical Propertymentioning

confidence: 99%

Osteoinductive and antimicrobial mechanisms of graphene‐based materials for enhancing bone tissue engineering

Zou

Jiang

et al. 2021

J Tissue Eng Regen Med

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show abstract

“…Various studies have found that the mechanical properties of graphene and its derivatives are affected by different interface binding modes, oxygen content, and different manufacturing processes, which makes the mechanical properties of graphene and its derivatives adjustable [ [40] , [41] , [42] ]. Therefore, graphene and its derivatives can theoretically mimic the mechanical properties of human bone and have broad prospects in the field of bone tissue engineering.…”

Section: Introductionmentioning

confidence: 99%

Progress in the application of graphene and its derivatives to osteogenesis

Guo,

Cao,

Wei

et al. 2023

Heliyon

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“…Moreover, the elongation at break of treated PLA/NFH biocomposite films with 3-APE decreased around 6 % in comparison with untreated PLA/NFH biocomposite films. The decreasing of the elongation at break of treated PLA/NFH biocomposite films was due the 3-APE treatment has improved the tensile strength of biocomposite films with the enhancement in rigidity and decrement of the ductility of biocomposite films [25].…”

Section: Tensile Propertiesmentioning

confidence: 98%

Optimization and Properties of Polylactic Acid (PLA) / Nypa Fruticans Husks (NFH) Biocomposite Films Via Central Composite Design (CCD) Method

Haiba¹,

Rasidi²,

Haider³

et al. 2021

J. Compos. Biodegradable Polym.

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Chemical treatment is one of the recognized methods that can be implemented to improve the overall performances of biocomposite materials. Unfortunately, trial and error methods were used to determine the optimal ratio between percentage of treatment agent and composite’s properties in the past. Hence, this research focuses on the optimization and validation of coupling agent percentage with properties of novel Polylactic Acid (PLA) / Nypa Fruticans Husks (NFH) biocomposite films via Central Composite Design (CCD) Method. Nypa Fruticans husks was grounded to obtain particulate form and mixed with Polylactic acid (PLA) using solvent casting method. Due to the different polarity between Nypa Fruticans Husks and Polylactic Acid, 3-Aminopropyltriethoxysilane was used to enhance the properties of the composite films. Central composite design (CCD) method was used to determine the optimized percentage of 3- Aminopropyltriethoxysilane and analysis of variance various (ANOVA) was performed to develop mathematical model to predict the tensile strength value in the range of factors in this research. Apart from that, the enzymatic biodegradation was also performed to investigate the composite’s degradation rate. It was found that, the incorporation of Nypa Fruticans Husks decreased the tensile strength and elongation at break, whereas the modulus of elasticity and degradation rate increased. However, composite films treated with 3% of 3-APE showed increment pattern in tensile strength and modulus of elasticity but decreased in elongation at break and degradation rate, respectively. The enhancement of the mechanical properties after treated with 3-Aminopropyltriethoxysilane was supported by the SEM micro-graphs and FTIR analysis.

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Thermally Reduced Graphene Oxide/Thermoplastic Polyurethane Nanocomposites: Mechanical and Barrier Properties

Cited by 13 publications

References 29 publications

Osteoinductive and antimicrobial mechanisms of graphene‐based materials for enhancing bone tissue engineering

Osteoinductive and antimicrobial mechanisms of graphene‐based materials for enhancing bone tissue engineering

Progress in the application of graphene and its derivatives to osteogenesis

Optimization and Properties of Polylactic Acid (PLA) / Nypa Fruticans Husks (NFH) Biocomposite Films Via Central Composite Design (CCD) Method

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