Journal ArticleDOI
Bioactive ceramic coatings containing carbon nanotubes on metallic substrates by electrophoretic deposition
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TLDR
In this paper, a range of potentially bioactive ceramic coatings, based on combinations of either hydroxyapatite (HA) or titanium oxide nanoparticles with carbon nanotubes (CNTs), have been deposited on metallic substrates, using electrophoretic deposition (EPD).Abstract:
A range of potentially bioactive ceramic coatings, based on combinations of either hydroxyapatite (HA) or titanium oxide nanoparticles with carbon nanotubes (CNTs), have been deposited on metallic substrates, using electrophoretic deposition (EPD). Sol–gel derived, ultrafine HA powders (10–70 nm) were dispersed in multi-wall nanotube-containing ethanol suspensions maintained at pH = ∼3.5 and successfully coated onto Ti alloy wires at 20 V for 1–3 min For TiO2/CNT coatings, commercially available titania nanopowders and surface-treated CNTs in aqueous suspensions were co-deposited on stainless steel planar substrates. A field strength of 20 V/cm and deposition time of 4 min were used working at pH = 5. Although the co-deposition mechanism was not investigated in detail, the evidence suggests that co-deposition occurs due to the opposite signs of the surface charges (zeta potentials) of the particles, at the working pH. Electrostatic attraction between CNTs and TiO2 particles leads to the creation of composite particles in suspension, consisting of TiO2 particles homogenously attached onto the surface of individual CNTs. Under the applied electric field, these net negatively charged “composite TiO2/CNT” elements migrate to and deposit on the anode (working electrode). The process of EPD at constant voltage conditions was optimised in both systems to achieve homogeneous and reasonably adhered deposits of varying thicknesses on the metallic substrates.read more
Citations
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Journal ArticleDOI
Nanoscale hydroxyapatite particles for bone tissue engineering
Hongjian Zhou,Jaebeom Lee +1 more
TL;DR: This feature article looks afresh at nano-HAp particles, highlighting the importance of size, crystal morphology control, and composites with other inorganic particles for biomedical material development.
Journal ArticleDOI
Electrophoretic deposition of carbon nanotubes
Aldo R. Boccaccini,Johann Cho,Judith A. Roether,B. J. C. Thomas,E. Jane Minay,Milo S. P. Shaffer +5 more
TL;DR: An up-to-date comprehensive overview of current research progress in the field of electrophoretic deposition of carbon nanotubes (CNTs) can be found in this article.
Journal ArticleDOI
Electrophoretic deposition: From traditional ceramics to nanotechnology
TL;DR: A comprehensive review of relevant recent work on EPD describing the application of the technique in the processing of several traditional and advanced materials (functional and structural ceramic coatings, composite and porous materials, laminated ceramics, functionally graded materials, thin films and nanostructured materials) is presented in this article.
Journal ArticleDOI
Electrophoretic deposition of biomaterials
TL;DR: How EPD has become an important tool in advanced biomaterials processing, as a convenient alternative to conventional methods, and the potential of the technique to manipulate and control the deposition of a range of nanomaterials of interest in the biomedical and biotechnology fields are presented.
Journal ArticleDOI
Ceramic matrix composites containing carbon nanotubes
TL;DR: In this article, the current status of the research and development of CNT-loaded ceramic matrix composite (CMC) materials is reviewed, with particular reference to brittle matrices and an overview of the processing techniques developed to optimise dispersion quality, interfaces, and density.
References
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Journal ArticleDOI
Electrophoretic deposition of materials
TL;DR: In this article, a review of electrophoretic deposition of materials is presented, focusing on the relation between the evolution of the current and the electric field strength, and the kinetics of the process.
Journal ArticleDOI
Dispersion and packing of carbon nanotubes
TL;DR: In this article, the authors show that the viscosity of dispersions as a function of their concentration shows a dramatic increase in gradient above a critical concentration, leading to the formation of viscoelastic gels.
Journal ArticleDOI
Application of electrophoretic and electrolytic deposition techniques in ceramics processing
TL;DR: Electrodeposition is gaining increasing interest as a ceramic processing technique for a variety of technical applications as discussed by the authors, and major advances in the areas of electrophoretic deposition (EPD) and electrolytic deposition (ELD) achieved in the last 24 months include the fabrication of: electrodes and films for solid oxide fuel cells, fibre-reinforced and graded ceramic composites, nanostructured materials as well as advanced films and coatings for electronic, biomedical, optical, catalytic and electrochemical applications.
Journal ArticleDOI
Fabrication and Biocompatibility of Carbon Nanotube-Based 3D Networks as Scaffolds for Cell Seeding and Growth
Miguel A. Correa-Duarte,Nicholas Wagner,Jose Rojas-Chapana,Christian Morsczeck,and Michael Thie,Michael Giersig +5 more
TL;DR: In this paper, a 3D-MWCNT-based network is proposed for scaffolds/matrices in tissue engineering, which is confirmed by extensive growth, spreading, and adhesion of the common mouse fibroblast cell line L929.
Journal ArticleDOI
Production of controlled architectures of aligned carbon nanotubes by an injection chemical vapour deposition method
TL;DR: In this paper, high purity, aligned multi-wall carbon nanotube films were grown on quartz substrates by injecting a solution of ferrocene in toluene into a suitable reaction furnace.
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