Anodization of titanium in radio frequency oxygen discharge — Microstructure, kinetics &amp; transport mechanism

Göttlicher, Markus; Rohnke, Marcus; Kunz, Alexander; Thomas, Jürgen; Henning, Ralph A.; Leichtweiß, Thomas; Gemming, Thomas; Janek, Jürgen

doi:10.1016/j.ssi.2016.04.013

Cited by 14 publications

(8 citation statements)

References 44 publications

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“…This reaction is exothermic. It provides an important driving force for transporting oxygen species from the TiOx/Ti interface towards the TiO2/Ti one [18]. The effects increase the oxygen concentration ratio in the TiO2 On the basis of the XPS, GIXRD and TEM results, there is a suggested mechanism for the formation of a TiO 2 layer on the Ti surface by oxygen plasma modification.…”

Section: Hemocompatibility Of the Plasma-oxidized Samplesmentioning

confidence: 99%

Section: Hemocompatibility Of the Plasma-oxidized Samplesmentioning

confidence: 99%

“…Plasma oxidation treatment is a potential green processing technology to generate the oxide layers, because it possesses some advantages such as an all-dry process (decreasing water consumption), environmental friendliness (no waste chemicals), ability to treat temperature sensitive materials and low unit cost per treatment in comparison with other common anodic and thermal oxidation methods [17]. Moreover, Göttlicher et al [18] also reported the possible mechanisms for plasma oxidation (low energy ion bombardment by negative oxygen ions) on the formation of nanocrystalline stoichiometric TiO 2 oxide layers. Accordingly, the plasma-modified Ti oxide layers have been widely investigated as coatings for enhancing osteogenic activity and in vivo osseointegration of the Ti dental implants.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Surface Characteristics and Hemocompatibility on the Oxygen Plasma-Modified Biomedical Titanium

Chiang

Chou

et al. 2018

Metals

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Oxygen plasma with different treatment powers and durations was utilized to modify the biomedical pure titanium (Ti) surface in the present study. The superficial, microstructural and biological properties of the plasma-oxidized samples were investigated using the electron microscopy, X-ray photoemission spectroscopy, grazing incidence X-ray diffractometer, contact angle goniometer and blood clotting time assay. During different treatment powers and durations, the island-like nanostructural rutile-TiO 2 layer and dimple-like nanostructural rutile-TiO 2 layer were generated on the surfaces of the plasma-oxidized samples, respectively. It was also found that the plasma-oxidized sample with a rough oxide layer resulted in the formation of a higher wettability. Moreover, the blood clotting time assay indicated that the plasma-oxidized samples exhibited the adhesion behaviors of red blood cells. As the Ti surface underwent plasma oxidation at 280 W for 30 min, it not only generates a rough nanostructural rutile-TiO 2 layer, but also presents an excellent hemocompatibility. Therefore, these findings demonstrate that oxygen plasma modification is a potential approach to promote the hemocompatibility of biomedical pure Ti surface.

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Section: Hemocompatibility Of the Plasma-oxidized Samplesmentioning

confidence: 99%

Section: Hemocompatibility Of the Plasma-oxidized Samplesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation of Surface Characteristics and Hemocompatibility on the Oxygen Plasma-Modified Biomedical Titanium

Chiang

Chou

et al. 2018

Metals

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“…An exothermic plasma reaction generates some of O 2 , O*, and O 2− species or radicals to fix at lattice or interstitial sites [13]. This reaction offers a key driving force for the transport of O species to form the TiO/Ti or TiO 2 /Ti [33]. There was no detectable P at its corresponding binding energy, which demonstrated that there was no organic compound contaminants on the surface of the control TiO sample.…”

Section: Discussionmentioning

confidence: 99%

The Potential of a Nanostructured Titanium Oxide Layer with Self-Assembled Monolayers for Biomedical Applications: Surface Properties and Biomechanical Behaviors

et al. 2020

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This study investigated the surface properties and biomechanical behaviors of a nanostructured titanium oxide (TiO) layer with different self-assembled monolayers (SAMs) of phosphonate on the surface of microscope slides. The surface properties of SAMs were analyzed using scanning electron microscopy, X-ray photoemission spectroscopy, and contact angle goniometry. Biomechanical behaviors were evaluated using nanoindentation with a diamond Berkovich indenter. Analytical results indicated that the homogenous nanostructured TiO surface was formed on the substrate surface after the plasma oxidation treatment. As the TiO surface was immersed with 11-phosphonoundecanoic acid solution (PUA-SAM/TiO), the formation of a uniform SAM can be observed on the sample surface. Moreover, the binding energy of O 1s demonstrated the presence of the bisphosphonate monolayer on the SAMs-coated samples. It was also found that the PUA-SAM/TiO sample not only possessed a higher wettability performance, but also exhibited low surface contact stiffness. A SAM surface with a high wettability and low contact stiffness could potentially promote biocompatibility and prevent the formation of a stress shielding effect. Therefore, the self-assembled technology is a promising approach that can be applied to the surface modification of biomedical implants for facilitating bone healing and osseointegration.

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“…A previous research indicated that discharge plasma has the potential to be used to sterilize Ti dental implants [10]. Moreover, plasma modification techniques have also been applied to alter Ti surface properties (e.g., topography, chemical composition, and microstructure) to improve its biocompatibility and hemocompatibility [5,[11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Preparation of a Biofunctionalized Surface on Titanium for Biomedical Applications: Surface Properties, Wettability Variations, and Biocompatibility Characteristics

Huang

et al. 2020

Applied Sciences

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This study developed a promising approach (low-temperature plasma polymerization with allylamine) to modify the titanium (Ti) surface, which helps the damaged tissue to heal faster. The Ti surface was first cleaned by argon (Ar) plasma, and then the functional amino-groups were coated on the Ti surface via plasma polymerization. The topography characteristics, wettability, and optimal plasma modification parameters were investigated through atomic force spectroscopy, secondary ion mass spectroscopy, and response surface methodology (RSM). Analytical results showed that the formation of a porous surface was found on the Ar plasma-modified Ti surfaces after Ar plasma modification with different parameters. The Ar plasma modification is an effective approach to remove surface contaminants and generate a porous topography on the Ti surface. As the Ti with Ar plasma modification was at 100 W and 190 m Torr for 12 min, the surface exhibited the maximum hydrophilic performance. In the allylamine plasma modifications, the contact angle values of the allylamine plasma-modified Ti surfaces varied between 70.15° and 88.26° in the designed parameters. The maximum concentration of amino-groups (31.58 nmole/cm2) can be obtained from the plasma-polymerized sample at 80 W and 150 mTorr for 22 min. Moreover, the cell response also demonstrated that the allylamine plasma-modified Ti sample with an optimal modification parameter (80 W, 22 min, and 150 mTorr) possessed great potential to increase cell adhesion ability. Thus, the optimal parameters of the low-temperature plasma polymerization with allylamine can be harvested using the RSM design. These data could provide new scientific information in the surface modification of Ti implant.

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Anodization of titanium in radio frequency oxygen discharge — Microstructure, kinetics & transport mechanism

Cited by 14 publications

References 44 publications

Evaluation of Surface Characteristics and Hemocompatibility on the Oxygen Plasma-Modified Biomedical Titanium

Evaluation of Surface Characteristics and Hemocompatibility on the Oxygen Plasma-Modified Biomedical Titanium

The Potential of a Nanostructured Titanium Oxide Layer with Self-Assembled Monolayers for Biomedical Applications: Surface Properties and Biomechanical Behaviors

Preparation of a Biofunctionalized Surface on Titanium for Biomedical Applications: Surface Properties, Wettability Variations, and Biocompatibility Characteristics

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