Microstructural, electrochemical and tribo-electrochemical characterisation of titanium-copper biomedical alloys

Pina, V. Guiñón; Amigó, V.; Muñoz, A. Igual

doi:10.1016/j.corsci.2016.02.014

Cited by 60 publications

(21 citation statements)

References 35 publications

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“…As a consequence of wear-corrosion processes taking place at implant/ bone interface, wear debris and corrosion products may be released to the implant surroundings and induce to adverse biological reactions and, ultimately, lead to implant loosening [17][18][19]. Various studies have been recently conducted to investigate the degradation of Ti-based implant materials by tribocorrosion processes [20][21][22][23][24][25][26][27][28]. In spite of the negative impact that tribocorrosion processes may have on the long term biological and mechanical stability of dental implants, the development of new implant systems addressing an integrated approach, which includes wear-corrosion resistance as a pre-requisite for implant success, is still lacking [29].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, these nanostructures have shown the ability to display antimicrobial properties and thus inhibit microbial infections [37][38][39][40][41][42][43][44][45]. Additionally, TiO 2 nanotubes possess a lower elastic modulus (36-43 GPa) than cp-Ti (120-166 GPa), which is closer to that of natural bone (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30), and thus TiO 2 nanotubular structured Ti surfaces are expected to have improved biomechanical compatibility, by reducing stress shielding effect [46][47][48][49].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tribo-electrochemical behavior of bio-functionalized TiO2 nanotubes in artificial saliva: Understanding of degradation mechanisms

Alves

Rossi

Ribeiro

et al. 2017

Wear

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It has been shown that the synthesis of TiO 2 nanotubes by anodization provides outstanding properties to Ti surfaces intended for dental and orthopedic implants applications. Beyond the very well-known potential of these surfaces to improve osseointegration and avoid infection, the knowledge on the adhesion and degradation behavior of TiO 2 nanotubes under the simultaneous action of wear and corrosion is still poorly understood and these are issues of tremendous importance. The main aim of this work is to investigate, for the first time, the tribo-electrochemical degradation behavior of Ti surfaces decorated with TiO 2 nanotubes before and after biofunctionalization treatments. Well-aligned TiO 2 nanotubes (NTs) were produced containing elements natively present in bone such as calcium (Ca) and phosphorous (P), in addition of zinc (Zn) as an antimicrobial agent and stimulator of bone formation. The synthesis of Ca/P/Zn-doped nanotubes (NT-Ca/P/Zn) was achieved by reverse polarization and anodization treatments applied to conventional TiO 2 nanotubes grown by two-step anodization. The nanotube surfaces were analyzed by scanning electron microscopy (SEM) while dark-field scanning transmission electron microscopy (STEM-DF) was used to characterize the Ti/TiO 2 nanotubular films interfaces. Tribo-electrochemical tests were conducted under reciprocating sliding conditions in artificial saliva. The open circuit potential (OCP) was monitored before, during and after sliding tests, and the coefficient of friction (COF) values were registered during rubbing action. The wear tracks resulting from sliding tests were characterized by SEM and wear volume measurements were carried out by 2D profilometry. The results show that the tribo-electrochemical behavior of TiO 2 nanotubes was significantly improved after bio-functionalization treatments. The higher electrochemical stability and lower mechanical degradation of these films was correlated with their improved adhesion strength to Ti substrate, which is granted by the nanothick oxide film formed at the interface region, during bio-functionalization processes. A first insight on the degradation mechanisms taking place during tribo-electrochemical action is proposed. The outcomes of this study may contribute in a great extent for the development of new implant surfaces with improved biomechanical stability and thus contribute for the long term success of dental implants.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tribo-electrochemical behavior of bio-functionalized TiO2 nanotubes in artificial saliva: Understanding of degradation mechanisms

Alves

Rossi

Ribeiro

et al. 2017

Wear

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“…After screening full texts, a total of 44 studies were included considering the tribocorrosion analyses for dental implants and frameworks applications. The characteristics of the 44 studies (Vieira et al, 2006;Banu et al, 2008;Richard et al, 2010;Souza et al, 2010aSouza et al, , 2012Sivakumar et al, 2011;Dimah et al, 2012;Mardare et al, 2012;Mathew et al, 2012a,b;Albayrak et al, 2013;Alves et al, 2013Alves et al, , 2014Alves et al, , 2017Alves et al, , 2018Benea et al, 2013Benea et al, , 2015Benea et al, , 2017Licausi et al, 2013a,b;Fazel et al, 2015;Figueiredo-Pina et al, 2015;Golvano et al, 2015;Oliveira et al, 2015;Buciumeanu et al, 2016Buciumeanu et al, , 2017Correa et al, 2016;Guinon Pina et al, 2016;Marques et al, 2016;Mindivan et al, 2016;Pontes et al, 2016;Sampaio et al, 2016b;Silva et al, 2016;Bryant and Neville, 2017;Danaila and Benea, 2017;Mindivan and Mindivan, 2018;Sikora et al, 2018;Trino et al, 2018;Wang et al, 2018;Branco et al, 2019;Corne et al, 2019;Cui et al, 2019a,b;…”

Section: The Relevance Of Bio-tribocorrosion In Dentistry and State Omentioning

confidence: 99%

Progression of Bio-Tribocorrosion in Implant Dentistry

et al. 2020

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Oral rehabilitation devices are susceptible to bio-tribocorrosion phenomena in the oral environment due to the synergism of wear, chemical, biochemical, and microbiological processes. This review summarizes the clinical problems and advances obtained based on current scientific evidence as well as the influence of tribological fundamentals, testing methodologies, and protocols in tribocorrosion analyses. The main clinical question related to oral rehabilitation with dental implants is the treatment failure, which is influenced by material degradation. Titanium-based implants are exposed to wear and corrosion challenges in the oral environment since the implantation and along the lifetime service. The titanium (Ti) properties such as structural material, connection design, surface treatments, alloying elements are influencing factors for material behavior. In addition, wear-corrosion factors such as cyclic loads, micromovements, oral biofilm, decontamination methods are also associated with dental implants degradation. These environmental conditions to which dental implants are submitted leads to the release of Ti particles and ions with cytotoxic and harmful effects on peri-implant surrounding tissues. In this context, the current state of the art of bio-tribocorrosion over the last decade has been steadily increasing to understand material degradation. The basic test system used to translate the tribocorrosion phenomena in the oral environment to the bench consists of electrochemical and tribological synergic analysis. The mechanical (applied load, frequency, stroke distance, and number of cycles) and electrochemical (solution composition, concentration of anions, and pH) test conditions are determinants for materials tribocorrosion performance. To overcome the tribocorrosion phenomena some strategies have been used such as alloying elements for Ti-alloys manufacture, surface treatments, and biomolecules immobilization. Further studies need to have the tribocorrosion analyses as the basis for new smart materials development considering the importance of such aspects for the biomaterial clinical behavior. Finally, tribological tests are relevant strategies for understanding the mechanisms of degradation in the oral environment and for providing a way to improve the clinical outcomes of dental implants.

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“…It was reached a current plateau and there was no transpassivation in potentials up to 8 V [6,[13][14] . There was also no pitting corrosion in all the Ti-Mo alloys exposed in the different solutions during the potential scans, suggesting their high resistance even in the presence of fluoride ions, which did not avoid the formation of the passive film probably due to the small amount of HF in the solution, nevertheless these ions can dissolve the passive film due to the formation of TiF3, TiF4 and TiOF2 [13] , expressed in the (1), (2) and 3reactions: prevent dental caries [14][15][16] .…”

Section: Cyclic Voltammetry (Cv)mentioning

confidence: 99%

“…It is a localized corrosion that is very harmful because it causes a corrosive attack that penetrates into the matrix of the alloy and makes the mechanical properties weaker. Besides the good corrosion resistance of the titanium alloys, their wide application is explained by their biocompatibility and mechanical properties as low Young's modulus, high yield and tensile strength [1,2] .…”

Section: Introductionmentioning

confidence: 99%

Ti-Mo alloys: corrosion study in solutions simulating commercial gels

Rodrigues

Guastaldi

2018

J. Polym. Sci. Eng.

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Regarding to the influence of chloride and fluoride ions on the corrosion resistance, the electrochemical behavior of Ti alloys has been deeply studied. In this work, the main goal was to investigate the electrochemical behavior of cp-Ti and Ti-Mo alloys containing 6, 10 and 15 wt% of Mo concentrations. All the samples were immersed in different solutions, such as 0.15 mol L-1 Na2SO4, 0.15 mol L-1 Ringer, 0.15 mol L-1 Ringer plus 0.036 mol L-1 NaF and 0.036 mol L-1 NaF. Simulating the commercial fluorinated gels, the NaF solutions naturally-aerated were prepared with 1450 ppm of fluoride ions. The electrochemical techniques applied in this work were the open-circuit potential, cyclic voltammetry, besides the technique for chemical identification, which was X-ray photoelectron spectroscopy. The formation and growth of TiO2 and MoO2 were identified, without pitting corrosion. The electrochemical stability and the corrosion resistance of the Ti-Mo alloys decreased in the solutions containing chloride and fluoride ions, with an appreciative decrease especially in the fluorinated medium. The Ti-Mo alloy with higher Mo content concentration was the material with higher corrosion resistance. Therefore, it is a promising candidate as a biomaterial, once the osseointegration needs a satisfactory corrosion resistance for being achieved.

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Microstructural, electrochemical and tribo-electrochemical characterisation of titanium-copper biomedical alloys

Cited by 60 publications

References 35 publications

Tribo-electrochemical behavior of bio-functionalized TiO2 nanotubes in artificial saliva: Understanding of degradation mechanisms

Tribo-electrochemical behavior of bio-functionalized TiO2 nanotubes in artificial saliva: Understanding of degradation mechanisms

Progression of Bio-Tribocorrosion in Implant Dentistry

Ti-Mo alloys: corrosion study in solutions simulating commercial gels

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