Graphene Oxides/Carbon Nanotubes–Hydroxyapatite Nanocomposites for Biomedical Applications

Barabáş, Réka; Ávila, Erick de Souza; Ladeira, Luiz Orlando; Antônio, Loudiana Mosqueira; Tötös, Róbert; Simedru, Dorina; Bizo, Liliana; Cadar, Oana

doi:10.1007/s13369-019-04058-4

Cited by 23 publications

(11 citation statements)

References 42 publications

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“…Exothermic and endothermic reactions of HA and graphene sheets occurred at different temperature ranges which is listed in Table 3 ( Figure 5). The TG-DSC curves also showed that a weight loss of about 6.5% occurred during the process [64]. Figure 6 shows the load-displacement diagrams, Vickers contact depth diagrams, and dynamic hardness and elastic modulus for pure HA and HA-rGO samples after sintering process.…”

Section: Characterization Techniquesmentioning

confidence: 92%

Characterization of hydroxyapatite-reduced graphene oxide nanocomposites consolidated via high frequency induction heat sintering method

Nosrati

Sarraf-Mamoory

Kazemi

et al. 2020

Journal of Asian Ceramic Societies

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Section: Characterization Techniquesmentioning

confidence: 92%

Characterization of hydroxyapatite-reduced graphene oxide nanocomposites consolidated via high frequency induction heat sintering method

Nosrati

Sarraf-Mamoory

Kazemi

et al. 2020

Journal of Asian Ceramic Societies

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“…167 The presence of GO or rGO helps to enhance cellular responses, 168 physical properties, 169 fracture toughness, tensile strength and the wear resistance of biocomposites. 170 DNA is a natural molecule for recording, storage and translation of information in humans and most other living organisms. It is one of the largest and the most sustainable biopolymers.…”

Section: Biomedical Engineeringmentioning

confidence: 99%

“…It has been proved that rGO has even a positive effect on promoting proliferation, thereby increasing the biocompatibility of composite materials 167 . The presence of GO or rGO helps to enhance cellular responses, 168 physical properties, 169 fracture toughness, tensile strength and the wear resistance of biocomposites 170 …”

Section: Applications Of Go and Rgo Polymer Compositesmentioning

confidence: 99%

Perspectives in the design and application of composites based on graphene derivatives and bio‐based polymers

Chen

Yang

Leng

et al. 2020

Polymer International

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Two-dimensional materials (2DMs), especially graphene derivatives, have attracted a wide range of interest in science and technology because of their exceptional physical and chemical properties and large potential application areas in electrochemistry, photonics, bioengineering, electronics and membrane separation fields. Our review focuses on recent advances in the construction of new functional composites using graphene oxide (GO), reduced graphene oxide (rGO) and bio-based macromolecules. The incorporation of bio-based polymers into GO and rGO nanolayers provides a novel way to tailor the properties of 2DMs. Meanwhile, 2DMs/bio-based polymer composites are sustainable and biocompatible. Benefiting from the combination of superior properties of both materials, they are endowed with new functions and new application areas. Here, we compare existing fabrication approaches for 2DMs/bio-based polymer composites. Then, we highlight the properties of composites such as ionic conductivity, molecular transport, mechanical properties, biocompatibility and sustainability. Finally, we discuss recent progress in applications of 2DMs/bio-based polymer composites for efficient ionic and molecular separation technologies, the construction of energy-related devices including fuel cells and transistors, and biomedical engineering.

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“…However, the poor mechanical properties of HAP limits their performance and lifetime in the presence of a corrosive body environment and applied loads 4 . Many studies have been performed on the effect of secondary phases such as glass, 17 silver particles 18 alumina, 19 SiC, 20 HAP whiskers, 21 carbon nano‐tubes (CNT), 22 , 23 and stabilized zirconia 24–26 on the mechanical properties of the HAP‐based composites.…”

Section: Introductionmentioning

confidence: 99%

Characterization of the 3YSZ/CNT/HAP coating on the Ti6Al4V alloy by electrophoretic deposition

et al. 2021

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In this article, the effects of the simultaneous addition of the 3 mol % yttria‐stabilized zirconia (3YSZ) and carbon nanotubes (CNTs) reinforcements on different properties of the natural hydroxyapatite (HAP) coating were studied. The electrophoretic deposition (EPD) process was implemented to prepare thin coatings on the Ti6Al4V substrate. The coatings were then sintered at 1000 ° C under vacuum for 2 hr and the mechanical properties of them were studied by the nano‐indentation method. The microsture and phase content of the coatings were investigated by the scanning electron microscope and X‐ray diffraction methods, respectively. The electrochemical properties of the samples were studied by potentiodynamic polarization and electrochemical impedance spectroscopy. The biocompatibility of the coatings was evaluated by the MTT test under standard conditions. It was found that the proper voltage and duration for the deposition of the coatings were 20 V and 4 min, while the longer deposition time of up to 6 min. Was tolerable in the coatings containing 5 wt % of the CNTs. The hardness and Young's modulus of the coatings were improved significantly by the siumultaneous addition of 3YSZ and CNTs, but the effect of nanotubes was more prominent. It was also found that the composite coating had marginally lower biocompatibility, as compared to the natural HAP, which was probably due to their lower roughness. The corrosion resistance of the HAP was not affected by the presence of 3YSZ particles, while the addition of CNTs improved the corrosion resistance of the coatings.

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Graphene Oxides/Carbon Nanotubes–Hydroxyapatite Nanocomposites for Biomedical Applications

Cited by 23 publications

References 42 publications

Characterization of hydroxyapatite-reduced graphene oxide nanocomposites consolidated via high frequency induction heat sintering method

Characterization of hydroxyapatite-reduced graphene oxide nanocomposites consolidated via high frequency induction heat sintering method

Perspectives in the design and application of composites based on graphene derivatives and bio‐based polymers

Characterization of the 3YSZ/CNT/HAP coating on the Ti6Al4V alloy by electrophoretic deposition

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