Glancing-Angle Deposition of Nanostructures on an Implant Material Surface

Ziegler, Nadine; Sengstock, Christina; Mai, V; Schildhauer, Thomas A.; Köller, Manfred; Ludwig, Alfred

doi:10.3390/nano9010060

Cited by 22 publications

(8 citation statements)

References 31 publications

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“…The titanium plasma spray (TPS) can be considered another well-established medical technology for improving surface roughness and wettability [ 40 ]. In general, a TPS surface structure is very rough (macro-roughness of up to 240 µm and micro-roughness approximately 40 μm) [ 41 ], as it is formed by overlapping droplets of solidified Ti [ 42 ], and is characterized by the occurrence of cavities, niches, clefts, and curved areas, resulting in a porous-like appearance.…”

Section: Discussionmentioning

confidence: 99%

Effect of Different Surface Treatments on Titanium Dental Implant Micro-Morphology

et al. 2019

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Background: Titanium dental implants are today widely used with osseointegration mainly dependently on the implant surface properties. Different processing routes lead to different surface characteristics resulting, of course, in different in situ behaviors of the implants. Materials: The effect of different treatments, whether mechanical or chemical, on the surface morphology of titanium implants were investigated. To this aim, various experimental methods, including roughness analysis as well scanning electron microscope (SEM) observations, were applied. Results: The results showed that, in contrast to the mechanical treatments, the chemical ones gave rise to a more irregular surface. SEM observations suggested that where commercial pure titanium was used, the chemical treatments provided implant surfaces without contaminations. In contrast, sandblasted implants could cause potential risks of surface contamination because of the presence of blasting particles remnants. Conclusions: The examined implant surfaces showed different roughness levels in relation to the superficial treatment applied. The acid-etched surfaces were characterized by the presence of deeper valleys and higher peaks than the sandblasted surfaces. For this reason, acid-etched surfaces can be more easily damaged by the stress produced by the peri-implant bone during surgical implant placement.

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Section: Discussionmentioning

confidence: 99%

Effect of Different Surface Treatments on Titanium Dental Implant Micro-Morphology

et al. 2019

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“…Several microbiology and stem cell studies using nanospikes fabricated using GLAD on titanium substrates have been published recently [102][103][104][105]. Zeigler et al reported promising bactericidal effects of the nanospikes against E. coli and a significant improvement in promoting the osteogenic response of hMSCs compared to plasma roughened TiO 2 surfaces [105]. Motemani et al reported different levels of hMSC growth on slanted, chevron and vertical structures on TiO 2 substrate [102].…”

Section: Glancing Angle Depositionmentioning

confidence: 99%

Protruding Nanostructured Surfaces for Antimicrobial and Osteogenic Titanium Implants

et al. 2020

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Protruding nanostructured surfaces have gained increasing interest due to their unique wetting behaviours and more recently their antimicrobial and osteogenic properties. Rapid development in nanofabrication techniques that offer high throughput and versatility on titanium substrate open up the possibility for better orthopaedic and dental implants that deter bacterial colonisation while promoting osteointegration. In this review we present a brief overview of current problems associated with bacterial infection of titanium implants and of efforts to fabricate titanium implants that have both bactericidal and osteogenic properties. All of the proposed mechano-bactericidal mechanisms of protruding nanostructured surfaces are then considered so as to explore the potential advantages and disadvantages of adopting such novel technologies for use in future implant applications. Different nanofabrication methods that can be utilised to fabricate such nanostructured surfaces on titanium substrate are briefly discussed.

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“…These are crucial aspects for an actual device using nanostructures arrays fabricated by GLAD being introduced in the market. In fact, two different works have recently reported the use of glancing angle deposition with magnetron sputtering (MS-GLAD) to cover the surface of real implants with antibacterial nanostructured coatings [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Large-Area Nanopillar Arrays by Glancing Angle Deposition with Tailored Magnetic Properties

et al. 2022

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Ferromagnetic films down to thicknesses of tens of nanometers and composed by polycrystalline Fe and Fe2O3 nanopillars are grown in large areas by glancing angle deposition with magnetron sputtering (MS-GLAD). The morphological features of these films strongly depend on the growth conditions. Vertical or tilted nanopillars have been fabricated depending on whether the substrate is kept rotating azimuthally during deposition or not, respectively. The magnetic properties of these nanopillars films, such as hysteresis loops squareness, adjustable switching fields, magnetic anisotropy and coercivity, can be tuned with the specific morphology. In particular, the growth performed through a collimator mask mounted onto a not rotating azimuthally substrate produces almost isolated well-defined tilted nanopillars that exhibit a magnetic hardening. The first-order reversal curves diagrams and micromagnetic simulations revealed that a growth-induced uniaxial anisotropy, associated with an anisotropic surface morphology produced by the glancing angle deposition in the direction perpendicular to the atomic flux, plays an important role in the observed magnetic signatures. These results demonstrate the potential of the MS-GLAD method to fabricate nanostructured films in large area with tailored structural and magnetic properties for technological applications.

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Glancing-Angle Deposition of Nanostructures on an Implant Material Surface

Cited by 22 publications

References 31 publications

Effect of Different Surface Treatments on Titanium Dental Implant Micro-Morphology

Effect of Different Surface Treatments on Titanium Dental Implant Micro-Morphology

Protruding Nanostructured Surfaces for Antimicrobial and Osteogenic Titanium Implants

Large-Area Nanopillar Arrays by Glancing Angle Deposition with Tailored Magnetic Properties

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