Tunable functionality and toxicity studies of titanium dioxide nanotube layers

Feschet-Chassot, E.; Raspal, Vincent; Sibaud, Yves; Awitor, Ok; Bonnemoy, Frédérique; Bonnet, Jl; Bohatier, Jacques

doi:10.1016/j.tsf.2010.12.184

Cited by 27 publications

(18 citation statements)

References 24 publications

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“…Hsu et al [147] performed anodic oxidation at 5 V and 10 V in NH 4 F/NaCl electrolyte to produce TiO 2 nanotubes. The diameters of nanotubes increased from 24-30 nm for 5 V to 35-53 nm for 10 V which matches trends in other studies with similar electrolytes [75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96]. Michalska-Doma nska et al [169] reported that the diameter of nanotubes did not grow linearly with applied voltage when fabrication was done at 30-60 V in ethanol-based electrolyte containing NH 4 F and deionised water.…”

Section: Applied Voltagesupporting

confidence: 83%

Evolution of anodised titanium for implant applications

Alipal

Lee

Koshy

et al. 2021

Heliyon

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Anodised titanium has a long history as a coating structure for implants due to its bioactive and ossified surface, which promotes rapid bone integration. In response to the growing literature on anodised titanium, this article is the first to revisit the evolution of anodised titanium as an implant coating. The review reports the process and mechanisms for the engineering of distinctive anodised titanium structures, the significant factors influencing the mechanisms of its formation, bioactivity, as well as recent pre-and post-surface treatments proposed to improve the performance of anodised titanium. The review then broadens the discussion to include future functional trends of anodised titanium, ranging from the provision of higher surface energy interactions in the design of biocomposite coatings (template stencil interface for mechanical interlock) to techniques for measuring the boneto-implant contact (BIC), each with their own challenges. Overall, this paper provides up-to-date information on the impacts of the structure and function of anodised titanium as an implant coating in vitro and in/ex vivo tests, as well as the four key future challenges that are important for its clinical translations, namely (i) techniques to enhance the mechanical stability and (ii) testing techniques to measure the mechanical stability of anodised titanium, (iii) real-time/in-situ detection methods for surface reactions, and (iv) cost-effectiveness for anodised titanium and its safety as a bone implant coating.

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Section: Applied Voltagesupporting

confidence: 83%

Evolution of anodised titanium for implant applications

Alipal

Lee

Koshy

et al. 2021

Heliyon

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“…This efficiency is attributed to the anatase crystalline structure of our nanoparticles and to their high specific surface. Compared to previous works published elsewhere [20,21], the photodegradation kinetic is improved by the establishment of a macroscopic liquid/liquid interface compared to a solid/ liquid counterpart. The reproducibility of the results was tested by repeating the measurements.…”

Section: Photocatalytic Resultsmentioning

confidence: 81%

Photokilling of Escherichia coli Using Hybrid Titania Nanoparticles Suspended in an Aqueous Liquid

Massard¹,

Bonnet²,

Veisseire³

et al. 2013

JBNB

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In this work, the photokilling of Escherichia coli using a “one-pot” synthesized suspension of anatase crystallized nanoparticles is evaluated. Preliminary to the biological tests concerning the antibacterial efficiency, the fabricated suspension, using a derived solgel process in soft chemistry condition, is characterized. Structural properties of the nanoparticles are investigated using Electronic Transmission Microscopy (TEM) equipped with Selected Area Electron Diffraction (SAED) probe and X-ray diffraction. The inorganic solid content was evaluated by Thermogravimetric Analysis (TGA). Photodegradation of Acid Orange 7 in aqueous solution was used a probe to assess the photocatalytic activity of the elaborated suspension under UV irradiation. The photokilling of Escherichia coli in presence of hybrid TiO₂ nanoparticles suspended in aqueous liquid under UV irradiation is evaluated. Such TiO₂ nanoparticles suspension shows a strong bactericidal activity with the total destruction of bacteria after only one hour.

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“…(c) shows Silica coated TiO2 nanotubes prepared on the above anodized TiO2 via a sol-gel method.In 2010, Feschet-Chassot et al[158] used the ciliated protozoan T. pyriformis to predict the toxicity of titanium dioxide nanotube layers towards biological systems. The contact angle measurements show clearly the correlation between surface topography and surface wettability.…”

mentioning

confidence: 99%

Biocompatibility and Toxicity of Nanoparticles and Nanotubes

Wang

Fan

et al. 2012

Journal of Nanomaterials

220

184

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In recent years, nanoparticles (NPs) have increasingly found practical applications in technology, research, and medicine. The small particle size coupled with their unique chemical and physical properties is thought to underline their exploitable biomedical activities. Its form may be latex body, polymer, ceramic particle, metal particles, and the carbon particles. Due to their small size and physical resemblance to physiological molecules such as proteins, NPs possess the capacity to revolutionise medical imaging, diagnostics, therapeutics, as well as carry out functional biological processes. But these features may also underline their toxicity. Indeed, a detailed assessment of the factors that influence the biocompatibility and toxicity of NPs is crucial for the safe and sustainable development of the emerging NPs. Due to the unique structure, size, and shape, much effort has been dedicated to analyzing biomedical applications of nanotubes.This paper focuses on the current understanding of the biocompatibility and toxicity of NPs with an emphasis on nanotubes.

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Tunable functionality and toxicity studies of titanium dioxide nanotube layers

Cited by 27 publications

References 24 publications

Evolution of anodised titanium for implant applications

Evolution of anodised titanium for implant applications

Photokilling of Escherichia coli Using Hybrid Titania Nanoparticles Suspended in an Aqueous Liquid

Biocompatibility and Toxicity of Nanoparticles and Nanotubes

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