Effect of Zn content on cytoactivity and bacteriostasis of micro-arc oxidation coatings on pure titanium

Zhao, Baohong; Zhang, W.; Wang, D.N.; Feng, Wei; Liu, Y.; Lin, Zhang; Du, Keqin; Deng, Chenlong

doi:10.1016/j.surfcoat.2012.05.037

Cited by 46 publications

(38 citation statements)

References 21 publications

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“…Additionally, ion-implanted surfaces may act bactericidally, as the ions may inhibit bacterial metabolism [108][109][110][111][113][114][115][116][117][118] . Chemical modification of anodically oxidized titanium by incorporation of ions reduces growth of biofilm in one, two and three species models of E. coli 164) , P. gingivalis 131) , S. mutans 125) , S. aureus 165) and A. acti nomycetemcomitans 110,111,119) .…”

Section: Anodically Oxidized/ Ion-implanted Surfacesmentioning

confidence: 99%

“…On the other hand, they exhibit dosedependent negative effects on cell proliferation, cell morphology, osteogenic gene expression and cell viability of eukaryotic cells 135) . Zinc oxide appears to be cytotoxic to human cells, as it reduces the number of viable macrophages and increases production of pro-inflammatory cytokine by macrophages 109) . Animal experiments with ion-implanted surfaces found reduced rates of infection and inflammation in tissues surrounding the implant, as well as an excellent osteoconductive response 100,117,122) .…”

Section: Anodically Oxidized/ Ion-implanted Surfacesmentioning

confidence: 99%

See 1 more Smart Citation

Antimicrobial dental implant functionalization strategies —A systematic review

Grischke

Eberhard

Stiesch

2016

Dental Materials Journal

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Section: Anodically Oxidized/ Ion-implanted Surfacesmentioning

confidence: 99%

Section: Anodically Oxidized/ Ion-implanted Surfacesmentioning

confidence: 99%

Antimicrobial dental implant functionalization strategies —A systematic review

Grischke

Eberhard

Stiesch

2016

Dental Materials Journal

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“…Several studies have focused on the incorporation of Zn onto a Ti surface by MAO treatment [58][59][60][61][62][63][64]. Hu et al [59], Zhang et al [61], Zhang et al [62] and Du et al [63] reported that Zn-incorporated TiO 2 coatings showed good antibacterial activity against both Escherichia coli (E. coli) and Staphylococcus aureus.…”

Section: Introductionmentioning

confidence: 99%

“…Hu et al [59], Zhang et al [61], Zhang et al [62] and Du et al [63] reported that Zn-incorporated TiO 2 coatings showed good antibacterial activity against both Escherichia coli (E. coli) and Staphylococcus aureus. Moreover, Zhao et al [60] reported that a Zn coating on a Ti surface showed bacteriostatic activity against Streptococcus mutans. These experiments provide adequate evidence to demonstrate that MAO-treated Ti in the electrolyte with Zn inhibited both bacterial adhesion as well as growth.…”

Section: Introductionmentioning

confidence: 99%

Chemical and Biological Roles of Zinc in a Porous Titanium Dioxide Layer Formed by Micro-Arc Oxidation

et al. 2019

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This study investigated the time transient effect of zinc (Zn) in the porous titanium dioxide formed by micro-arc oxidation (MAO) treatment routinely performed for Zn-containing electrolytes. The aim of our analysis was to understand the changes in both the chemical and biological properties of Zn in physiological saline. The morphology of the Zn-incorporated MAO surface did not change, and a small amount of Zn ions were released at early stages of incubation in saline. We observed a decrease in Zn concentration in the oxide layer because its release and chemical state (Zn2+ compound to ZnO) changed over time during incubation in saline. In addition, the antibacterial property of the Zn-incorporated MAO surface developed at late periods after the incubation process over a course of 28 days. Furthermore, osteogenic cells were able to proliferate and were calcified on the specimens with Zn. The changes related to Zn in saline had non-toxic effects on the osteogenic cells. In conclusion, the time transient effect of Zn in a porous titanium dioxide layer was beneficial to realize dual functions, namely the antibacterial property and osteogenic cell compatibility. Our study suggests the importance of the chemical state changes of Zn to control its chemical and biological properties.

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“…There are various technologies used to produce markings, including printing, plasma treatment [11,21], electrochemical treatment, magnetron sputtering, micro-arc oxidation [22,23], anodising [1,8,24], cold spray [17] and laser induced oxidation [1,2,9,25]. The most important is smaller.…”

Section: Introductionmentioning

confidence: 99%

Influence of Laser Colour Marking on the Corrosion Properties of Low Alloyed Ti

et al. 2019

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In the field of surface treatment, laser colour marking can be used to produce coloured marks on the surfaces of metals. Laser colour markings can be applied to various materials, but on titanium alloys a wide spectra of vivid colours can be achieved. This study presents an analysis of the corrosion properties of laser treated surfaces that were exposed to aggressive environments. Different samples were prepared with laser light of various power intensities and processing speeds. The samples were prepared on low alloyed Ti. Electrochemical, spectroscopic and microstructural analyses were conducted in order to study the properties of the laser treated surfaces. Corrosion testing showed different effects of laser power and production speed on the properties of the laser treated surfaces. It was shown that a high intensity and slow processing rate affect the surfaces by forming oxides that are relatively stable in a corrosive environment of 0.1 M NaCl. Spectroscopic investigations including scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) analyses showed the differences in chemical structure of the surface layer formed after laser treatment. Similarly, microstructural investigations showed different effects on the surface and sub-surface layer of the laser treated samples. advantages of laser induced oxidation are that the process is non-contact and that the marking of smaller surfaces can be made fast at relatively low cost. The produced markings are very sharp, reproducible and precise. Another benefit is that the process enables flexible change of marking colours on the fly with respect to laser processing parameters [6,[13][14][15][16].Titanium and its alloys have several specific properties, like good strength to weight ratio, high strength, good chemical stability, high temperature stability, biocompatibility, corrosion resistance and resistance to fatigue and wear, and can be heat treated or surface treated in order to achieve particular hardness and strength [11,26].Laser induced oxidation of metals is a gaseous high-temperature corrosion process, where thin layers of oxides or other more complex oxidation formations are formed. With this process, different colours can be produced on the titanium surface. During laser oxidation, titanium oxides are formed at the surface if the marking is carried out in an oxidative atmosphere. Titanium oxides are not expensive, biocompatible, non-toxic and mechanically and chemically stable [16]. On the surfaces, there are thin layers present in the form of anatase, brookite, rutile or in the amorphous phase [6,13,16]. In the white light spectrum, they are highly transparent and exhibit a wide spectrum of vivid colours as a result of the interference between white light and the borders between different phases. The obtained colours depend on the thickness of the oxide layer, refractive index and the interference between light and incidence angle [6,13,15,27]. There are many laser parameters, such as pulse duration, pulse repetition rate, pulse en...

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Effect of Zn content on cytoactivity and bacteriostasis of micro-arc oxidation coatings on pure titanium

Cited by 46 publications

References 21 publications

Antimicrobial dental implant functionalization strategies —A systematic review

Antimicrobial dental implant functionalization strategies —A systematic review

Chemical and Biological Roles of Zinc in a Porous Titanium Dioxide Layer Formed by Micro-Arc Oxidation

Influence of Laser Colour Marking on the Corrosion Properties of Low Alloyed Ti

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