Surface characteristics of titanium anodized in the four different types of electrolyte

Park, Il Song; Woo, Tae-Gyu; Jeon, Woo Yong; Park, Hyeong‐Ho; Lee, Min Ho; Bae, Tae Sung; Seol, Kyeong Won

doi:10.1016/j.electacta.2007.07.067

Cited by 59 publications

(36 citation statements)

References 28 publications

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“…4a, b. In both groups of samples, R and A TiO 2 phases were identified, as already registered in others similar studies [16,61,73]. After the analyzes of the X-ray diffractograms, a different relative proportion of the polymorphs of TiO 2 between PEO_CE,8,10 and PEO_Cβ,25,10 samples was found.…”

Section: Electrochemical Behavior and Cof Measurementsmentioning

confidence: 63%

“…Significantly thicker anodic films are present on PEO_CE,8,5 when compared to PEO_Cβ,8,5 samples, whose values are 11.34 0.56 µm and 6.74 0.08 µm ( Table 2). Several researches have already reported that the thickness of the anodic oxide films strongly depends on the chemical composition of the electrolyte in which the specimens are anodized [52,73]. As reported by Venkateswarlu et al [74], the thickness values can be related with the electrolyte conductivity.…”

Section: Surface Characterizationmentioning

confidence: 71%

“…1b, d) display round-shaped morphology; however, the pores are smaller on those samples anodized in the Cβ electrolyte (up to 3 μm diameter) when compared to those on samples treated in CE electrolyte (up to 6 μm diameter). Some previous studies have shown that the pore size depends on the [71][72][73]. The differences between the pore sizes registered for samples anodized in different electrolytes can be associated with the quantity of spark discharges generated during each PEO process [72].…”

Section: Surface Characterizationmentioning

confidence: 99%

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Tribocorrosion Behavior of Calcium- and Phosphorous-Enriched Titanium Oxide Films and Study of Osteoblast Interactions for Dental Implants

et al. 2015

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Titanium (Ti) dental implants are frequently exposed simultaneously to a corrosive environment and cyclic micromovements at implant/abutment and implant/ bone interfaces, becoming part of a tribocorrosion system. Thus, wear debris and corrosion products/ions can be released to peri-implant tissues and induce inflammatory reactions leading to implant failure. Moreover, the poor osseointegration is also one of the main problems affecting dental implants lifetime. Surface modification strategies have been proposed to design novel Ti oxide-based multifunctional surfaces that are able to simultaneously improve cellular functions and provide enhanced tribocorrosion resistance. Hence, the main objective of this work was the synthesis of Calcium (Ca)-and Phosphorous (P)-enriched Ti oxide films aimed to display superior wear/corrosion performance and simultaneously, to enhance osteoblast-material interactions. Ca-and P-enriched films were synthesized by plasma electrolytic oxidation (PEO) and their characteristics were assessed by Field emission scanning electron microscopy, profilometry, energy-dispersive X-ray spectroscopy, X-ray diffraction, and water contact angle measurements. PEO-treated samples were subjected to pin-on-disk reciprocating sliding tests in artificial saliva at 37°C. The viability of MG63 cells cultured on PEO-treated samples was investigated by MTT assay, and their adhesion ability by SEM and confocal laser scanning microscopy. The wear/corrosion behavior of Ti was improved after PEO treatments and the electrolyte composition appeared to play a crucial role both on its corrosion tendency and mechanical wear resistance. It is believed that this improvement is related to the higher rutile/anatase ratio exhibited by Ca-and P-enriched surfaces. Osteoblasts were well spread on these surfaces displaying improved viability/proliferation compared to Ti.

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Section: Electrochemical Behavior and Cof Measurementsmentioning

confidence: 63%

Section: Surface Characterizationmentioning

confidence: 71%

Section: Surface Characterizationmentioning

confidence: 99%

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Tribocorrosion Behavior of Calcium- and Phosphorous-Enriched Titanium Oxide Films and Study of Osteoblast Interactions for Dental Implants

et al. 2015

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“…We hypothesized that modifying the titanium surface could increase the quantities of antibiotic loaded into the coating. We reasoned that anodization would increase the porosity and the surface area compared to polished titanium [19][20][21] . In addition, the heat-treatment could increase the crystallinity of the titania layer 22) .…”

Section: Introductionmentioning

confidence: 99%

The biomimetic apatite-cefalotin coatings on modified titanium

et al. 2012

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Dental implant failure often occurs due to oral bacterial infection. The aim of this study was to demonstrate that antibiotic efficacy could be enhanced with modified titanium. First, the titanium was modified by anodization and heat-treatment. Then, a biomimetic coating process was completed in two steps. Surface characterization was performed with scanning electron microscopy, energy dispersive spectroscopy, and X-ray diffraction. Release of antibiotic was evaluated by UV/VIS spectrometry, and the antibacterial effect was evaluated on Streptococcus mutans. After the second coating step, we observed a thick homogeneous apatite layer that contained the antibiotic, cefalotin. The titanium formed a rutile phase after the heat treatment, and a carbonated apatite phase appeared after biomimetic coating. We found that the modified titanium increased the loading of cefalotin onto the hydroxyapatite coated surface. The results suggested that modified titanium coated with a cefalotin using biomimetic coating method might be useful for preventing local post-surgical implant infections.

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“…In order to improve the corrosion behavior, mechanical properties, biocompatibility and osseointegration efficiency, numerous surface modifications have been studied [4][5][6] . Oxidized implants change the properties of the titanium implant and play an important role during the dynamic build-up of the osseointegration process 7 .…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Stability and Bioactivity Evaluation of Ti6Al4V Surface Coated with Thin Oxide by EIS for Biomedical Applications

2015

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Surface characteristics of titanium anodized in the four different types of electrolyte

Cited by 59 publications

References 28 publications

Tribocorrosion Behavior of Calcium- and Phosphorous-Enriched Titanium Oxide Films and Study of Osteoblast Interactions for Dental Implants

Tribocorrosion Behavior of Calcium- and Phosphorous-Enriched Titanium Oxide Films and Study of Osteoblast Interactions for Dental Implants

The biomimetic apatite-cefalotin coatings on modified titanium

Electrochemical Stability and Bioactivity Evaluation of Ti6Al4V Surface Coated with Thin Oxide by EIS for Biomedical Applications

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