Anodic plasma-chemical treatment of CP titanium surfaces for biomedical applications

Frauchiger, V; Schlottig, Falko; Gasser, B.; Textor, Marcus

doi:10.1016/s0142-9612(03)00560-x

Cited by 191 publications

(128 citation statements)

References 43 publications

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“…Various cellular sources, such as MCT3T3 osteogenic cell lines, mature osteoblasts, and MSCs, have been employed to evaluate the biocompatibility of titanium materials in numerous studies 4,5,8,[11][12][13]22,23) . Osteoblasts exist only in the internal surface of cortical bone, and their quantity and proliferation ability are limited.…”

Section: Discussionmentioning

confidence: 99%

“…5(j) and (l)). Highresolution spectra of P 2p peaks were deconvoluted into two peaks at 133.4 and 134.4 eV, assigned to PO 4 3− and HPO4 2− respectively (Figs. 5(m) and (o)).…”

Section: Chemical Compositionmentioning

confidence: 99%

“…Newly formed TiO 2 coating, obtained via MAO, was both porous and firmly adherent to the titanium substrate, which is beneficial for the biological performance of titanium implants 2) . In addition, calcium (Ca) and phosphate (P) ions can be incorporated into the surface coating by controlling the composition and concentration of the electrolyte during the MAO process [2][3][4][5][6][7] . It has been reported that Ca-and P-containing surfaces enhanced both cell response in vitro 5) and osseointegration in vivo 6) .…”

Section: Introductionmentioning

confidence: 99%

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Ultraviolet irradiation enhanced bioactivity and biological response of mesenchymal stem cells on micro-arc oxidized titanium surfaces

Huang

et al. 2015

Dental Materials Journal

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This present study investigated the effect of ultraviolet (UV) irradiation on bioactivity of micro-arc oxidized (MAO) titanium surface in vitro by cell culture medium immersion test and interactions with rat-derived mesenchymal stem cells (MSCs). UV-irradiated MAO surface exhibited no obvious changes in surface roughness, morphology, and phase composition when compared with MAOonly surface. However, in cell culture medium immersion test, markedly more bone-like apatite was formed on UV-modified samples than on MAO sample. Rat bone marrow-and adipose tissue-derived MSCs cultured on UV-modified samples displayed accelerated attachment, significant higher levels of alkaline phosphatase (ALP) activity, and up-regulated osteogenesis-related mRNA expression than MAO sample. XPS results provided direct evidence that the amount of basic hydroxyl groups increased with UV irradiation time, which could be one of the key mechanisms underlying their improved bioactivity.

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Section: Discussionmentioning

confidence: 99%

“…5(j) and (l)). Highresolution spectra of P 2p peaks were deconvoluted into two peaks at 133.4 and 134.4 eV, assigned to PO 4 3− and HPO4 2− respectively (Figs. 5(m) and (o)).…”

Section: Chemical Compositionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ultraviolet irradiation enhanced bioactivity and biological response of mesenchymal stem cells on micro-arc oxidized titanium surfaces

Huang

et al. 2015

Dental Materials Journal

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“…Alkaline electrolytes were prepared from mixtures of two Ca-and P-containing salts including slightly soluble calcium compounds. In this case, the 1N solution of Trilon B (Na 2 EDTA) was introduced at a quantity sufficient to keep the solution free of the precipitates [12]. The formation of a complex with calcium cations [CaY] 2− , in which Y = [(OOC)·NCH 2 CH 2 N·(COO) 2 ] 4− , leads to the following results: (a) The solubility of calcium compounds increases and the probability of precipitation of Ca/P compounds from the electrolyte decreases; (b) The positively charged cations are converted to a negatively charged complex [CaY] 2− , whose movement to the anode is facilitated.…”

Section: Sample and Electrolyte Preparationmentioning

confidence: 99%

The Influence of the Electrolyte Nature and PEO Process Parameters on Properties of Anodized Ti-15Mo Alloy Intended for Biomedical Applications

Banakh¹,

Snizhko²,

Journot³

et al. 2018

Metals

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Plasma electrolytic oxidation (PEO) of Ti-15Mo alloys conducted in electrolytes containing Ca and P compounds can be an efficient process with which to obtain bioactive coatings. This paper reports on the influence of the nature of the electrolyte, its concentration, and PEO process parameters on the properties of anodized layers on Ti-15Mo. A wide range of Ca-and P-containing alkaline and acidic solutions was employed to incorporate Ca and P ions into the anodized layer. The efficiency of the incorporation was evaluated by the Ca/P ratio in the coating as compared to that in the electrolyte. It was found that alkaline solutions are not suitable electrolytes for the formation of good quality, uniform PEO coatings. Only acidic electrolytes are appropriate for obtaining well-adherent homogeneous layers on Ti-15Mo. However, the maximum Ca/P ratios reached in the coatings were rather low (close to 1). The variation of electrical signal (negative-to-positive current ratio, frequency) and time of electrolysis do not result in a substantial change of this value. The processing time, however, did influence the coating thickness. Despite their low Ca/P ratio, the anodized layers demonstrate good biological activity, comparable to pure microrough titanium.

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“…In an effort to improve osseointegration, the composition and topography of the implant surface were modified 8) . A Ti implant's surface is generally modified by increasing the surface roughness of the Ti surface or by altering the crystal structure and chemical composition by techniques such as oxidation methods [9][10][11][12] , anodic plasma-chemical treatments 13) , and calcium phosphate and hydroxyapatite coatings on the Ti surface [14][15][16][17][18] . Anodic oxidation is also used for the surface treatment of commercial implants to improve the implants' functional properties for clinical success.…”

Section: Introductionmentioning

confidence: 99%

Ultra-structural evaluation of an anodic oxidated titanium dental implant

Yamagami¹,

Nagaoka

Nakamura

et al. 2014

Dent. Mater. J.

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Anodic oxidation is used for the surface treatment of commercial implants to improve their functional properties for clinical success. Here we conducted ultrastructural and chemical investigations into the micro-and nanostructure of the anodic oxide film of a titanium implant. The anodic oxidized layer of a Ti6Al4V alloy implant was examined ultrastructurally by transmission electron microscopy (TEM) and scanning electron microscopy (SEM). They were also analyzed using energy dispersive X-ray spectrometry (EDS) and X-ray photoelectron spectroscopy (XPS). The TEM revealed that the oxide layer of the Ti6Al4V implant prepared through anodic oxidation was separated into two layers. Al and V were not present on the top surface of the anodic oxide. This can be attributed to the biocompatibility of the anodic oxidized Ti6Al4V alloy implant, because the release of harmful metal ions such as Al and V can be suppressed by the biocompatibility.

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Anodic plasma-chemical treatment of CP titanium surfaces for biomedical applications

Cited by 191 publications

References 43 publications

Ultraviolet irradiation enhanced bioactivity and biological response of mesenchymal stem cells on micro-arc oxidized titanium surfaces

Ultraviolet irradiation enhanced bioactivity and biological response of mesenchymal stem cells on micro-arc oxidized titanium surfaces

The Influence of the Electrolyte Nature and PEO Process Parameters on Properties of Anodized Ti-15Mo Alloy Intended for Biomedical Applications

Ultra-structural evaluation of an anodic oxidated titanium dental implant

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