Synthesis and characterization of self-organized TiO2 nanotubes grown on Ti-15Zr alloy surface to enhance cell response

Konatu, Reginaldo Toshihiro; Domingues, D.D.; Escada, Ana Lúcia do Amaral; Chaves, Javier Andres Muñoz; Netipanyj, Marcela Ferreira Dias; Nakazato, Roberto Zenhei; Popat, Ketul C.; Grandini, Carlos Roberto; Claro, Ana Paula Rosifini Alves

doi:10.1016/j.surfin.2021.101439

Cited by 11 publications

(7 citation statements)

References 58 publications

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“…01-073-1764). It was also noticed that XRD peaks corresponding to 60 V TNTs sample were intense compared to 30 V TNTs sample owing to higher thickness of the TNTs film (length of nanotubes is ∼17 μm) [21][22][23].…”

Section: Resultsmentioning

confidence: 98%

Anodic TiO₂ nanotubes for hydrophobic coatings and photo-electrochemical water splitting application

Gousiya Bhanu,

Manmadha Rao

2024

Phys. Scr.

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In recent years, anodic TiO2 nanotubes (TNTs) have been considered as one of the most promising material in the field of photoelectrochemical water splitting, hydrophobic coatings, solar cells etc owing to their outstanding properties such as unidirectional charge transfer, high surface to volume ratio along with the non-toxicity, corrosion resistance, high thermal and chemical stabilities. In the present study, TNTs were successfully fabricated using a simple and low cost electrochemical anodization technique at 30 V and 60 V. The morphological and structural information of the TiO2 nanotube arrays were investigated through SEM and XRD analysis. This analysis revealed that fabricated nanotubes were having a set of length and pores diameters (2.5 µm, 70 nm), (17 µm, 120 nm) respectively for 30 V TNT and 60 V TNT samples. Electronic band gap and surface functional groups of TNTs were examined by diffuse reflectance and attenuation total reflection spectroscopy studies. This analysis divulged that fabricated sample surface was free from chemicals and energy band gap found to be around 3.2 eV. The contact angle measurement revealed that as-fabricated 30 V TNT sample has shown an enhanced hydrophobic nature (135.90) and whereas annealed 60 V TNT sample has shown an enhancement in the photocurrentdesnity (70.7 µA.cm-2). These findings show that fabricated TNTs can be used in hydrophobic coatings along with photocatalytic applications.

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Section: Resultsmentioning

confidence: 98%

Anodic TiO₂ nanotubes for hydrophobic coatings and photo-electrochemical water splitting application

Gousiya Bhanu,

Manmadha Rao

2024

Phys. Scr.

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“…TiO 2 nanotubes with anatase phase matrix formed by annealing at 530°C and anatase/rutile phase matrix formed by annealing at 630°C not only promoted the proliferation of ADSCs but also improved the cell elongation of ADSCs, optimizing the cell compatibility to a great extent [ 42 ]. In another similar study, anatase matrix titanium dioxide nanotubes formed at comparable annealing temperatures were found to promote the optimal combination and interaction between ADSCs and the material surface [ 43 ]. Secondly, the compatibility of nanotubes with cells varies based on their diameter.…”

Section: Biocompatibilitymentioning

confidence: 99%

Biomaterials combined with ADSCs for bone tissue engineering: current advances and applications

Song,

Wang,

Shi

et al. 2023

Regenerative Biomaterials

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In recent decades, bone tissue engineering, which is supported by scaffold, seed cells and bioactive molecules (BMs), has provided new hope and direction for treating bone defects. In terms of seed cells, compared to bone marrow mesenchymal stem cells, which were widely utilized in previous years, adipose-derived stem cells (ADSCs) are becoming increasingly favored by researchers due to their abundant sources, easy availability and multi-differentiation potentials. However, there is no systematic theoretical basis for selecting appropriate biomaterials loaded with ADSCs. In this review, the regulatory effects of various biomaterials on the behavior of ADSCs are summarized from four perspectives, including biocompatibility, inflammation regulation, angiogenesis and osteogenesis, to illustrate the potential of combining various materials with ADSCs for the treatment of bone defects. In addition, we conclude the influence of additional application of various BMs on the bone repair effect of ADSCs, in order to provide more evidences and support for the selection or preparation of suitable biomaterials and BMs to work with ADSCs. More importantly, the associated clinical case reports and experiments are generalized to provide additional ideas for the clinical transformation and application of bone tissue engineering loaded with ADSCs.

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“…The anodization of both Ti15Zr and Ti15Mo binary systems has been successfully performed in our previous studies. Rangel et al [22] studied nanotube growth on the Ti15Mo surface and obtained nanotubes with 65 nm and 500 nm thickness while values of 80.6 nm of diameter and 1370 nm of thickness were observed in Ti15Zr alloy with improvement in the cell response [25]. The MAO (Micro Arc Oxidation) is another technique used to change the surface due to the presence of valve-type materials such as Zr.…”

Section: Introductionmentioning

confidence: 99%

XPS Characterization of TiO2 Nanotubes Growth on the Surface of the Ti15Zr15Mo Alloy for Biomedical Applications

Konatu

Domingues

França

et al. 2023

JFB

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Ti15Zr15Mo (TMZ alloy) has been studied in recent years for biomedical applications, mainly due to phase beta formation. From the surface modification, it is possible to associate the volume and surface properties with a better biomedical response. This study aimed to evaluate the possibility of using anodization to obtain TiO2 nanotubes due to the presence of valve-type metal (Zr) in their composition. X-ray photoelectron spectroscopy (XPS) was performed to determine the surface chemical composition in both after-processing conditions (passive layer) and after-processing plus anodization (TiO2 nanotube growth). The anodization resulted in nanotubes with diameters and thicknesses of 126 ± 35 and 1294 ± 193 nm, respectively, and predominated anatase phase. Compared to the passive layer of titanium, which is less than ~10 nm, the oxide layer formed was continuous and thicker. High-resolution spectra revealed that the oxide layer of the element alloys contained different oxidation states. The major phase in all depths for the nanotube samples was TiO2. While the stable form of each oxide was found to predominate on the surface, the inner part of the oxide layer consisted of suboxides and metallic forms. This composition included different oxidation states of the substrate elements Ti, Zr, and Mo.

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Synthesis and characterization of self-organized TiO2 nanotubes grown on Ti-15Zr alloy surface to enhance cell response

Cited by 11 publications

References 58 publications

Anodic TiO₂ nanotubes for hydrophobic coatings and photo-electrochemical water splitting application

Anodic TiO₂ nanotubes for hydrophobic coatings and photo-electrochemical water splitting application

Biomaterials combined with ADSCs for bone tissue engineering: current advances and applications

XPS Characterization of TiO2 Nanotubes Growth on the Surface of the Ti15Zr15Mo Alloy for Biomedical Applications

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Synthesis and characterization of self-organized TiO2 nanotubes grown on Ti-15Zr alloy surface to enhance cell response

Cited by 11 publications

References 58 publications

Anodic TiO2 nanotubes for hydrophobic coatings and photo-electrochemical water splitting application

Anodic TiO2 nanotubes for hydrophobic coatings and photo-electrochemical water splitting application

Biomaterials combined with ADSCs for bone tissue engineering: current advances and applications

XPS Characterization of TiO2 Nanotubes Growth on the Surface of the Ti15Zr15Mo Alloy for Biomedical Applications

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Product

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Anodic TiO₂ nanotubes for hydrophobic coatings and photo-electrochemical water splitting application

Anodic TiO₂ nanotubes for hydrophobic coatings and photo-electrochemical water splitting application