Corrosion resistance for biomaterial applications of TiO2 films deposited on titanium and stainless steel by ion-beam-assisted sputtering

Pan, Jinshan; Leygraf, C.; Thierry, Dominique; Ektessabi, A. M.

doi:10.1002/(sici)1097-4636(19970605)35:3<309::aid-jbm5>3.0.co;2-l

Cited by 147 publications

(45 citation statements)

References 34 publications

(42 reference statements)

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“…Both high biocompatibility and corrosion resistance can be attributed to the formation of passive film on the surface of titanium and its alloys, consisting mainly of amorphous titanium dioxide (TiO 2 ) [3,4]. However, the passive film of titanium and its alloys is often damaged during uses in some complicated environments, such as oral environments.…”

Section: Introductionmentioning

confidence: 99%

Streptococcus Sanguis Biofilm Architecture and Its Influence on Titanium Corrosion in Enriched Artificial Saliva

et al. 2017

Materials

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Bacteria biofilm formation on metals is well-known, while biofilm architecture varies under different conditions. To date, few studies have determined the possible contribution to corrosion of titanium made by biofilm architecture. We investigated the interaction between the oral Streptococcus sanguis biofilm architecture and its influence on titanium corrosion in enriched artificial saliva using electrochemical methods and microscopic study. Patchy biofilms were observed on titanium surface after being immersed in solution containing S. sanguis. The thickness and size of the patchy biofilms increased with an increase of immersion time. The extensive pits were clearly observed by scanning electron microscopy, showing that adsorption of S. sanguis on titanium promoted the localized corrosion. The electrochemical results indicated that the corrosion rates were clearly accelerated in the presence of S. sanguis. The low icorr and high Rt in the first 48 h indicated that a typical passive behavior still remained. Our study showed that the pitting corrosion of titanium was mainly attributed to the formation of a self-catalytic corrosion cell by the co-effect of patchy biofilm and organic acid secreted by S. sanguis.

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Section: Introductionmentioning

confidence: 99%

Streptococcus Sanguis Biofilm Architecture and Its Influence on Titanium Corrosion in Enriched Artificial Saliva

et al. 2017

Materials

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“…When the value of n is equal to 1, the CPE acts as a pure capacitor [12]. The components of the EC are: Rs -ohmic resistance of the electrolyte; R1 -resistance of the outer porous layer; R2 -resistance of the compact inner layer; Q1 -constant phase element of the outer porous layer; Q2 -constant phase element of the compact inner layer.…”

Section: Resultsmentioning

confidence: 99%

Chemical properties of hydroxyapatite deposited through electrophoretic process on different sandblasted samples

Gradinariu

Ştirbu

Gheorghe

et al. 2014

Materials Science-Poland

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An implantable material based on titanium (Ti6Al4V) was sandblasted in order to be deposited with a thin film of hydroxyapatite. Two samples of the alloy, in a shape of a bar with 10 mm diameter and 20 mm length, were subjected to mechanical treatment. After deposition of the hydroxyapatite through electrophoresis process, the samples were analyzed by scanning electron microscopy. The nature and chemical properties of thin films formed on Ti-based substrate were investigated with electrochemical impedance spectroscopy based on the extremely high polarization resistance of the material. The results revealed the formation of a homogeneous layer on the surface of the metallic substrate. The layer composed of TiO 2 and hydroxyapatite provided a high corrosion protection.

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“…This protective attribute of the oxide layer may explain why overall we observed an only moderate microvascular response of striated muscle to cpTi and its alloys. 38 While an acute toxicity of the two Ti alloys can be disclaimed with this in vivo model, one must critically point out that the model may not be sensitive enough to compare biomaterials where only discrete discrepancies are anticipated. In vitro cytokine and chemokine secretion studies may contribute to elucidate possible differences in short-term inflammatory response to commonly used biomaterials.…”

Section: Discussionmentioning

confidence: 99%

Short‐term microvascular response of striated muscle to cp‐Ti, Ti‐6Al‐4V, and Ti‐6Al‐7Nb

Pennekamp

Geßmann

Diedrich

et al. 2006

Journal Orthopaedic Research

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Due to excellent mechanical properties and good corrosion resistance, titaniumaluminium-vanadium (Ti-6Al-4V) and titanium-aluminium-niobium (Ti-6Al-7Nb) are extensively used for orthopedic surgery. Concern has been voiced concerning the implications of the constituent vanadium in Ti-6Al-4V on the surrounding environment. Particularly in osteosynthesis where the alloys stand in direct contact to skeletal muscle, undesirable biologic reactions may have severe consequences. In a comparative study, we assessed in vivo nutritive perfusion and leukocytic response of striated muscle to the metals Ti-6Al-4V, Ti-6Al-7Nb, and commercially pure titanium (cp-Ti), thereby drawing conclusions on their short-term inflammatory potential. In 28 hamsters, utilizing the dorsal skinfold chamber preparation and intravital microscopy, we quantified primary and secondary leukocyte-endothelial cell interaction, leukocyte extravasation, microvascular diameter change, and capillary perfusion in collecting and postcapillary venules of skeletal muscle. A manifest discrepancy between the metals concerning impact on local microvascular parameters was not found. All metals induced an only transient and moderate inflammatory response. Only a slight increase in leukocyte recruitment and a more sluggish recuperation of inflammatory parameters in animals treated with Ti-6Al-4V compared to the other two metals suggested a minor, overall not significant discrepancy in biocompatibility. Gross toxicity of bulk Ti-6Al-4V on surrounding tissue could not be found. Conclusively, the commonly used biomaterials Ti-6Al-4V, Ti-6Al-7Nb, and cp-Ti induce an only transient inflammatory answer of the skeletal muscle microvascular system. Our results indicate that on the microvascular level the tested bulk Ti-alloys and cpTi do not cause adverse biologic reactions in striated muscle. ß

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Corrosion resistance for biomaterial applications of TiO2 films deposited on titanium and stainless steel by ion-beam-assisted sputtering

Cited by 147 publications

References 34 publications

Streptococcus Sanguis Biofilm Architecture and Its Influence on Titanium Corrosion in Enriched Artificial Saliva

Streptococcus Sanguis Biofilm Architecture and Its Influence on Titanium Corrosion in Enriched Artificial Saliva

Chemical properties of hydroxyapatite deposited through electrophoretic process on different sandblasted samples

Short‐term microvascular response of striated muscle to cp‐Ti, Ti‐6Al‐4V, and Ti‐6Al‐7Nb

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