Multifunctional bioceramic-based composites reinforced with silica-coated carbon nanotube core-shell structures

Li, Zhong; Bi, Sheng; Thompson, Brianna C.; Li, Ruitao; Khor, Khiam Aik

doi:10.1016/j.ceramint.2017.08.125

Cited by 18 publications

(21 citation statements)

References 53 publications

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“…The synthesis of HA nanorods was based on the following reaction, as reported in our previous study: (Li, Bi, et al, 2017) 10 Ca OH ð Þ 2 + 6 H 3 PO 4 ! Ca 10 PO 4 ð Þ 6 OH ð…”

Section: Synthesis Of Raw Powdersmentioning

confidence: 99%

“…The S-GO hybrid nanosheets were fabricated using a sol-gel method described elsewhere (Bi, Liu, Shen, Hu, & Zhang, 2017;Li, Bi, et al, 2017). The purified solution was lyophilized, and flocculent GO sheets were obtained.…”

Section: Synthesis Of Raw Powdersmentioning

confidence: 99%

“…The E and H of the polished compacts were measured by nanoindentation using an Agilent G200 nanoindenter (Keysight Technologies), assuming a Poisson's ratio of 0.261 (Li, Bi, et al, 2017).…”

Section: Characterizationmentioning

confidence: 99%

“…The FTIR spectrum of HA shown inFigure 3bhas typical bands corresponding toHA at 568, 604, 877, 964, 1,041, 1,095, 1,417, 1,452, and 3, (Li, Bi, et al, 2017). In particular, GO experiences rapid weight loss from RT to 250 C, with 45.1% of the original weight lost in this temperature range.…”

mentioning

confidence: 99%

“…In particular, GO experiences rapid weight loss from RT to 250 C, with 45.1% of the original weight lost in this temperature range. The Raman spectra of the sintered pellets are also included in (c).FTIR, Fourier transform infrared spectroscopy; HA, hydroxyapatite; TGA, thermal gravimetric analysis; XPS, X-ray photoelectron spectroscopy formation of covalent bonds between SiO 2 and GO(Li, Bi, et al, 2017). In addition, the absorbed water leads to the broad bands centered at $1,637 and $3,439 cm −1 .…”

mentioning

confidence: 99%

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Incorporating silica‐coated graphene in bioceramic nanocomposites to simultaneously enhance mechanical and biological performance

Zhu

et al. 2020

J Biomedical Materials Res

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The applications of a variety of bioactive ceramics such as hydroxyapatite (HA) in orthopedics are limited by their insufficient mechanical properties, especially poor fracture toughness. Thus, further extending the clinical applications of these materials warrants the enhancement of their mechanical properties. Although the reinforcement of ceramics by 2D nanomaterials has been well recognized, integrated structural, mechanical, and functional considerations have been neglected in the design and synthesis of such composite materials. Herein, we report the first use of silica-coated reduced graphene oxide (S-rGO) hybrid nanosheets to create bioceramic-based composites with simultaneously enhanced mechanical and biological properties. In the representative HA-based bioceramic systems prepared by spark plasma sintering, S-rGO incorporation was found to be more effective for increasing the Young's modulus, hardness, and fracture toughness than the incorporation of uncoated reduced GO (rGO). Furthermore, when assessed with osteoblast-like MG-63 cells, such novel materials led to faster cell proliferation and higher cell viability and alkaline phosphatase activity than are generally observed with pure HA; additionally, cells demonstrate stronger affinity to S-rGO/HA than to rGO/HA composites.The S-rGO/bioceramic composites are therefore promising for applications in orthopedic tissue engineering, and this research provides valuable insights into the fabrication of silica-coated hybrid nanosheet-reinforced ceramics. K E Y W O R D Scytocompatibility, fracture toughness, hybrid 2D nanomaterial, hydroxyapatite, spark plasma sintering

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“…The synthesis of HA nanorods was based on the following reaction, as reported in our previous study: (Li, Bi, et al, 2017) 10 Ca OH ð Þ 2 + 6 H 3 PO 4 ! Ca 10 PO 4 ð Þ 6 OH ð…”

Section: Synthesis Of Raw Powdersmentioning

confidence: 99%

Section: Synthesis Of Raw Powdersmentioning

confidence: 99%

Section: Characterizationmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Incorporating silica‐coated graphene in bioceramic nanocomposites to simultaneously enhance mechanical and biological performance

Zhu

et al. 2020

J Biomedical Materials Res

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Facile synthesis methodology and characterization studies of silica‐decorated hybridized anisotropic nanotubes and nanosheets

Swain

Unnikrishnan

Mohanty

et al. 2022

Surface & Interface Analysis

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Carbonaceous nanomaterials and their derivatives have been inspired tremendous enthusiasm in the scientific community. They have been excogitated as the encouraging attributes and the qualified dispersed phase to develop multi‐functional composites. Particularly, graphene and carbon nanotube (anisotropic fillers) have gained substantial research interest owing to their promising characteristics. This highlights an innovative technique to synthesize hybridized nanotube and nanosheet. Initially, parent materials have been synthesized: The pristine CNT has been modified by acid mixture solution, and reduced graphene oxide has been prepared by chemical reduction method. Henceforth, the self‐assembly in situ sol–gel technique has been endorsed here. The synthesized nanohybrids have been characterized by different spectroscopic techniques: FTIR, Raman, UV, and XPS to confirm the attachment of multifunctionalities; meanwhile, the composition and stability have been investigated from XRD and TGA plots. The magnitude of surface charge and particle size distribution have been evaluated for the parent and hybridized products; further, morphology of all the samples has been authenticated from FESEM and TEM.

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Tissue Engineering for Musculoskeletal Regeneration and Disease Modeling

Zhong

Xiang

et al. 2020

Handbook of Experimental Pharmacology

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Multifunctional bioceramic-based composites reinforced with silica-coated carbon nanotube core-shell structures

Cited by 18 publications

References 53 publications

Incorporating silica‐coated graphene in bioceramic nanocomposites to simultaneously enhance mechanical and biological performance

Incorporating silica‐coated graphene in bioceramic nanocomposites to simultaneously enhance mechanical and biological performance

Facile synthesis methodology and characterization studies of silica‐decorated hybridized anisotropic nanotubes and nanosheets

Tissue Engineering for Musculoskeletal Regeneration and Disease Modeling

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