Surface chemistry and osteoblast-like cell response on a titanium surface modified by a focused Nd:YAG laser

Ohtsu, Naofumi; Kozuka, Taro; Yamane, Masayuki; Arai, Hirofumi

doi:10.1016/j.surfcoat.2016.10.024

Cited by 11 publications

(6 citation statements)

References 32 publications

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“…It can be seen from figure 3(c) that the laser-treated γ-TiAl exhibited the thin and separated melted zone (4-6 μm thick). The rapid heating and melting accompanied by the high pressure of Er,Cr:YSGG caused the liquid metal spilled from the central part of the melted area towards the periphery [26,33]. In addition, the surface roughness was increased by an effect of overlapping of subsequent melted areas [33].…”

Section: Surface Characterizationsmentioning

confidence: 99%

Advanced surface treatment techniques counteract biofilm-associated infections on dental implants

Koopaie

Bordbar‐Khiabani

Kolahdooz

et al. 2020

Mater. Res. Express

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Topography and surface chemistry can significantly affect biofilm formation on dental implants. Recently, the γ-TiAl alloy was considered as the most reliable candidates for the preparation of dental implants because of its excellent mechanical strength, chemical stability and biocompatibility. The emphasis of this study lies in the effects of high-speed milling assisted the minimum quantity of lubrication (HSM-MQL), micro-current wire electrical discharge machining (mWEDM), Er,Cr:YSGG laser and sandblasting/largegrit/acid-etching (SLA) treatments on surface morphology, topography, chemical composition, wettability and biofilm-associated infections on the surface of each group. The surface-treated samples were analyzed using a scanning electron microscope (SEM), SEM surface reconstruction, energy dispersive x-ray spectroscopy (EDS) and water contact angle measuring system. SEM and topography images of mWEDM and laser-treated surfaces showed more irregular surfaces compared to SLA and HSM-MQL surfaces. Results showed that mWEDM and laser-treated surfaces revealed hydrophobic behavior. A significant decrease of biofilm formation was observed on mWEDM treated surface due to the hydrophobicity and existence of the copper element in the recast layer chemical composition. Moreover, EDS confirmed that the zirconium, silicon, and fluorine elements were decorated onto the SLA treated γ-TiAl surface that can have a direct effect on the anti-bacterial activity.

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Section: Surface Characterizationsmentioning

confidence: 99%

Advanced surface treatment techniques counteract biofilm-associated infections on dental implants

Koopaie

Bordbar‐Khiabani

Kolahdooz

et al. 2020

Mater. Res. Express

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“…Among these methods, LST has been considered as a promising technique for modifying the surface properties of biomaterials due to being flexible, simple, and displaying good controllability and reproducibility [14]. In fact, numerous investigations have now been reported that focussed on investigating the cytocompatibility of traditional biomedical alloys treated by LST [13,[15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

In vitro cytocompatibility of a Zr-based metallic glass modified by laser surface texturing for potential implant applications

Jiao

Brousseau

Ayre

et al. 2021

Applied Surface Science

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“…The laser surface treatment has been used to improve the mechanical properties, corrosion resistance and biocompatibility of Ti alloys [15,16]. On the one hand, a homogeneous microstructure and stable oxidation layer can be produced on the surface of the alloy owing to rapid re-solidification [17].…”

Section: Introductionmentioning

confidence: 99%

Corrosion resistance and cytocompatibility of Ti-20Zr-10Nb-4Ta alloy surface modified by a focused fiber laser

Xue

et al. 2018

Sci. China Mater.

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The corrosion resistance and cytocompatibility of Ti-20Zr-10Nb-4Ta (TZNT) alloy modified by surface laser treatment were investigated. The scanning electron microscopy (SEM) measurements indicated that laser treatment on TZNT alloy generated groove morphologies with the width of 40 μm and the depth of~10 μm on the surface. The water contact angles along the groove direction decreased by 51% compared with that of the untreated alloy. The laser treatment promoted the oxidation of metallic Ti, Zr and Nb and produced more stable oxides on surface. The corrosion potential increased by 50% and corrosion current density decreased by 72% compared with that of the untreated alloy in the anodic polarization test for the alloy in Hank's solution at 37°C. This indicated the improvement of the corrosion resistance by laser treatment. The cytotoxicity testing results showed that the laser-treated TZNT alloy performed similar MC3T3-E1 cell viability compared with the untreated alloy. The cells displayed oriented growth along the groove direction due to the increased hydrophilicity. This novel material may be a new candidate in orthopedics and dentistry implantations fields.

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Surface chemistry and osteoblast-like cell response on a titanium surface modified by a focused Nd:YAG laser

Cited by 11 publications

References 32 publications

Advanced surface treatment techniques counteract biofilm-associated infections on dental implants

Advanced surface treatment techniques counteract biofilm-associated infections on dental implants

In vitro cytocompatibility of a Zr-based metallic glass modified by laser surface texturing for potential implant applications

Corrosion resistance and cytocompatibility of Ti-20Zr-10Nb-4Ta alloy surface modified by a focused fiber laser

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