Electrochemical impedance spectroscopy study of the nucleation and growth of apatite on chemically treated pure titanium

Wang, C.X; Wang, M

doi:10.1016/s0167-577x(01)00532-8

Cited by 31 publications

(8 citation statements)

References 6 publications

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“…The corresponding electrochemical impedance data Table 1. These models were in good agreement with the impedance data obtained and the mechanism of apatite formation reported in literature [25,33]. The high resistance observed immediately after immersion can be attributed to the presence of the gel layer formed after the alkali treatment.…”

Section: Eis Studies Of Alkali Treated Ti-6al-4v Eli Alloysupporting

confidence: 91%

Evaluation of corrosion behavior of surface modified Ti–6Al–4V ELI alloy in hanks solution

2009

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The passive film behavior of Ti-6Al-4V ELI (Extra Low Interstitial) alloy after a chemical treatment followed by a thermal treatment was morphologically and electrochemically characterized. The surface morphological studies were carried out using scanning electron microscopy (SEM), electron dispersive X-ray analysis (EDAX), and Fourier Transformed-Infra Red (FT-IR) analysis to investigate the nucleation and growth of apatite on the chemically and thermally treated Ti-6Al-4V ELI alloy immersed for different durations in Hanks solution. Polarization and impedance spectroscopic (EIS) measurements were carried out in Hanks solution and the electrical parameters were obtained for the passive film using a nonlinear least square fitting (NLLS) method.

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Section: Eis Studies Of Alkali Treated Ti-6al-4v Eli Alloysupporting

confidence: 91%

Evaluation of corrosion behavior of surface modified Ti–6Al–4V ELI alloy in hanks solution

2009

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“…1a), consistent with previously documented results of Ti treated with NaOH (G2) [1,9]. It has been reported that a thin gel layer of sodium titanate forms on the surface of Ti after reaction with NaOH [1,34]. After spin-coating, G1 and G2 samples were fully covered with a flat layer of plain PU or PU containing Mg-particles respectively, as shown in Fig.…”

Section: Mg-particle/pu Coatingsupporting

confidence: 90%

Magnesium-particle/polyurethane composite layer coating on titanium surfaces for orthopedic applications

Abdal‐hay

Agour

Kim

et al. 2019

European Polymer Journal

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This study aimed to design an adhesive biodegradable polymer layer on the surface of titanium (Ti) implants for enhanced surface bioactivity. To this end, a coating of magnesium-particles doped biodegradable polyurethane (PU) was introduced as a composite layer on Ti surfaces using a simple spin coating technique. The coating's performance and characteristics were investigated in terms of the surface topography, composition, surface roughness, wettability, adhesion and electrochemical behavior of composite coatings on untreated (polished) and alkaline treated Ti substrates. Interestingly, the Ti samples coated with the composite layers showed superior corrosion resistance compared to the uncoated samples.Additionally, the coating on alkali-treated Ti surfaces demonstrated enhanced adhesion (5B, measured by cross-cut test) compared to the coating on untreated Ti (1B), indicating the vital role of the alkalinetreatment step. A composite thin layer coated on alkaline-treated Ti enhanced osteoblastic-like (MC3T3-E1) cellular adhesion and cell proliferation and was found to support osteoblastic differentiation compared to uncoated alkaline-treated Ti. Surface modification of alkaline-treated Ti with a biodegradable Mg-particles/PU thin layer appears to be a promising strategy for developing surface bioactivity of orthopedic devices. HighlightsPU thin films coated on Ti substrates showed superior corrosion resistance Alkaline treated Ti substrates coated with plain PU film showed better cell attachment and spreading PU coated and alkaline-treated Ti substrates induced the highest adhesion performance Mg particles/PU coated treated Ti can support cell proliferation and differentiation

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“…Since Kim and Kokubo et al introduced the alkali and heat treatment to improve the bioactivity of titanium and its alloys, many researchers have further investigated the mechanism and optimized the treatment process for better bioactivity [99][100][101][102][103][104][105][106]. Lee et al [92] investigated the bioactivity and surface changes on surface treated Ti-In-Nb-Ta and commercial Ti-6Al-4V ELI alloys by in vitro tests using simulated body fluids.…”

Section: Alkali Treatmentmentioning

confidence: 99%

Surface modification of titanium, titanium alloys, and related materials for biomedical applications

Liu

Chu

Ding

2004

Materials Science and Engineering: R: Reports

3,023

1,477

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Titanium and titanium alloys are widely used in biomedical devices and components, especially as hard tissue replacements as well as in cardiac and cardiovascular applications, because of their desirable properties, such as relatively low modulus, good fatigue strength, formability, machinability, corrosion resistance, and biocompatibility. However, titanium and its alloys cannot meet all of the clinical requirements. Therefore, in order to improve the biological, chemical, and mechanical properties, surface modification is often performed. This article reviews the various surface modification technologies pertaining to titanium and titanium alloys including mechanical treatment, thermal spraying, sol-gel, chemical and electrochemical treatment, and ion implantation from the perspective of biomedical engineering. Recent work has shown that the wear resistance, corrosion resistance, and biological properties of titanium and titanium alloys can be improved selectively using the appropriate surface treatment techniques while the desirable bulk attributes of the materials are retained. The proper surface treatment expands the use of titanium and titanium alloys in the biomedical fields. Some of the recent applications are also discussed in this paper. #

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Electrochemical impedance spectroscopy study of the nucleation and growth of apatite on chemically treated pure titanium

Cited by 31 publications

References 6 publications

Evaluation of corrosion behavior of surface modified Ti–6Al–4V ELI alloy in hanks solution

Evaluation of corrosion behavior of surface modified Ti–6Al–4V ELI alloy in hanks solution

Magnesium-particle/polyurethane composite layer coating on titanium surfaces for orthopedic applications

Surface modification of titanium, titanium alloys, and related materials for biomedical applications

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