Influence of Pore Characteristics on Electrochemical and Biological Behavior of Ti Foams

Salehi, Akram; Barzegar, Faezeh; Mashhadi, H. Amini; Nokhasteh, Samira; Abravi, M. S.

doi:10.1007/s11665-017-2829-x

Cited by 5 publications

(4 citation statements)

References 65 publications

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“…Previous experimental and numerical works only show an acceptable interval of porosity used in dental implants [ 7 , [20] , [21] , [22] , [23] ], but the novelty of our study is to indicate the accurate porosity of Ti foam at 62.5% using an optimized FEM with the intermediary Deshpande and Fleck model.…”

Section: Discussionmentioning

confidence: 95%

“…Shirazi et al [ 21 ] showed that the FGBM (functionally graded biomaterial) dental implant can reduce the high-stress values and the stress shielding effect in natural bones. Salehi et al [ 22 ] indicated analytically that the 50 and 60% porosity of samples of titanium foam were suitable for biomedical applications. To ensure the ingrowth of bone into the pores, Nouri [ 23 ] showed experimentally that the titanium foam must have at least 60% porosity.…”

Section: Introductionmentioning

confidence: 99%

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Numerical investigation of the optimal porosity of titanium foam for dental implants

Farroukh,

Kaddah,

Wehbe

2024

Heliyon

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Section: Discussionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Numerical investigation of the optimal porosity of titanium foam for dental implants

Farroukh,

Kaddah,

Wehbe

2024

Heliyon

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“…Similar results have been found in other studies [ 43 ] to point out that the higher exposed surface area and the difficult electrolyte penetration to get into the pores leads to an instable, heterogeneous and insufficient thickness of oxide film. Other authors [ 51 ] have reported that the corrosion behavior of porous samples is a function of the pore characteristics. Open and interconnected porosity of porous samples provides access to more electrolytes, which greatly fail to maintain the protective titanium oxide layer on the alloy surface.…”

Section: Resultsmentioning

confidence: 99%

Improved Corrosion Behavior and Biocompatibility of Porous Titanium Samples Coated with Bioactive Chitosan-Based Nanocomposites

Garcı́a

Godinho²,

Salvo-Comino

et al. 2021

Materials

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Porous titanium implants can be a good solution to solve the stress shielding phenomenon. However, the presence of pores compromises mechanical and corrosion resistance. In this work, porous titanium samples obtained using a space-holder technique are coated with Chitosan, Chitosan/AgNPs and Chitosan/Hydroxyapatite using only one step and an economic electrodeposition method. The coatings’ topography, homogeneity and chemical composition were analyzed. A study of the effect of the porosity and type of coating on corrosion resistance and cellular behavior was carried out. The electrochemical studies reveal that porous samples show high current densities and an unstable oxide film; therefore, there is a need for surface treatments to improve corrosion resistance. The Chitosan coatings provide a significant improvement in the corrosion resistance, but the Chitosan/AgNPs and Chitosan/HA coatings showed the highest protection efficiency, especially for the more porous samples. Furthermore, these coatings have better adherence than the chitosan coatings, and the higher surface roughness obtained favors cell adhesion and proliferation. Finally, a combination of coating and porous substrate material with the best biomechanical balance and biofunctional behavior is proposed as a potential candidate for the replacement of small, damaged bone tissues.

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“…Therefore, catalysts could be evenly dispersed both on the surface and inside of the Ti foam which enhanced the utilization and bonding of catalysts with 20% improved OH• production and 16.3 times increased accelerated service life than the conventional Ti plate electrode. Considering the Ti foam also has the advantages of lightweight yet strong compressive strength, low preparation cost and easy scale-up production, it is attractive for advanced structural application [26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

High-performance three-dimensional SnO2–Sb electrode supported on titanium foam substrate prepared by solvothermal process

Sun

Jin

Tang

et al. 2022

Journal of Materials Research

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Three-dimensional (3D) Ti/SnO2-Sb electrode is promising for electrochemical oxidation process (EAOP) application, while hindered by uneven and low catalysts loading, especially on the inner surface of porous substrates. In this study, Ti foam and a solvothermal preparation method were developed for preparing a novel 3D Ti/SnO2-Sb electrode. The catalysts in hollow ellipsoidal shape were well dispersed and stacked on the outer surface, and fully grown along the rugged surface inside Ti foam. Owing to this distinctive structure, the Ti foam/ATO electrode expressed 1.89 times increasing electrochemically active surface area and 48% improved OH• production than the 2D Ti plate/ATO electrode. Moreover, the Ti foam/ATO electrode performed 1.57 years of predicted service life which is 65.8 times than that of Ti plate/ATO electrode. In conclusion, this study provided a facile method and a novel porous substrate to prepare 3D Ti/SnO2-Sb electrode with high performance for EAOP application.

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Influence of Pore Characteristics on Electrochemical and Biological Behavior of Ti Foams

Cited by 5 publications

References 65 publications

Numerical investigation of the optimal porosity of titanium foam for dental implants

Numerical investigation of the optimal porosity of titanium foam for dental implants

Improved Corrosion Behavior and Biocompatibility of Porous Titanium Samples Coated with Bioactive Chitosan-Based Nanocomposites

High-performance three-dimensional SnO2–Sb electrode supported on titanium foam substrate prepared by solvothermal process

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