Antibacterial Silicon Oxide Thin Films Doped with Zinc and Copper Grown by Atmospheric Pressure Plasma Chemical Vapor Deposition

Jäger, Elisabeth; Schmidt, Jürgen; Pfuch, Andreas; Spange, Sebastian; Beier, Oliver; Jäger, Nikolaus; Jantschner, Oliver; Daniel, Rostislav; Mitterer, Christian

doi:10.3390/nano9020255

Cited by 15 publications

(17 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Ag appears to be effectual only at elevated temperatures [19], whereas Cu was found—using in vitro tests—to have antibacterial ability at ambient conditions [20]. For this reason, Cu is being investigated as an antibacterial element with increased frequency in thin films [21,22], ionic form [23,24], and in alloys [17,25,26]. In particular, Zhang et al [27] have investigated the addition of Cu in titanium and found that there are discrepancies in the literature regarding required copper content and the mechanisms causing bacterial reduction.…”

Section: Introductionmentioning

confidence: 99%

Development of Antibacterial Ti-Cux Alloys for Dental Applications: Effects of Ageing for Alloys with Up to 10 wt% Cu

et al. 2019

View full text Add to dashboard Cite

Peri-implantitis, a disease caused by bacteria, affects dental implants in patients. It is widely treated with antibiotics, however, with growing antibiotic resistance new strategies are required. Titanium-copper alloys are prospective antibacterial biomaterials, with the potential to be a remedy against peri-implantitis and antibiotic resistance. The aim of this study was to investigate Ti-Cux alloys, exploring how Cu content (up to 10 wt%) and ageing affect the material properties. Electron microscopy, X-ray diffraction, hardness testing, bacteriological culture, and electrochemical testing were employed to characterize the materials. It was found that alloys with above 3 wt% Cu had two phases and ageing increased the volume fraction of Ti2Cu. An un-aged alloy of 5 wt% Cu showed what could be Ti3Cu, in addition to the α-Ti phase. The hardness gradually increased with increased Cu additions, while ageing only affected the alloy with 10 wt% Cu (due to changes in microstructure). Ageing resulted in faster passivation of the alloys. After two hours the aged 10 wt% Cu alloy was the only material with an antibacterial effect, while after six hours, bacteria killing occurred in all alloys with above 5 wt% Cu. In conclusion, it was possible to tune the material and antibacterial properties of Ti-Cux alloys by changing the Cu concentration and ageing, which makes further optimization towards an antibacterial material promising.

show abstract

Section: Introductionmentioning

confidence: 99%

Development of Antibacterial Ti-Cux Alloys for Dental Applications: Effects of Ageing for Alloys with Up to 10 wt% Cu

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Furthermore, metal embedded SiOx films produced by high-temperature air plasmas are effective for antibacterial applications. For example, hexamethyldisiloxane (HMDSO) was used as a primary precursor and solutions with silver nitrate AgNO3, zinc nitrate Zn(NO3)2 and copper nitrate Cu(NO3)2, in a 1:1 volume mixture of isopropanol and water, were sprayed into the plasma as secondary precursors (Zimmermann, et al, 2011;Jager, et al, 2019). After separation from the precursor molecules, Ag, Zn and Cu elements bind to oxygen, thus forming metal oxides that are subsequently incorporated into the SiOx film.…”

Section: Depositionmentioning

confidence: 99%

Plasma-digital nexus: plasma nanotechnology for the digital manufacturing age

Hong

Murphy

Ashford

et al. 2020

Rev. Mod. Plasma Phys.

View full text Add to dashboard Cite

Digital transformation in manufacturing is one of the key megatrends in the development of global economy and society. Three-dimensional (3D) printing is a transformative digital technology poised to disrupt manufacturing and supply chains across major industries. Here we critically examine relevant insights into current and emerging applications of plasma nanotechnology in printing, including 3D printing. Plasma devices operated at atmospheric pressure coupled with printing processes may help strengthen 3D printing as an emerging fabrication technology that morphs diverse metal powders, polymers, plastics and other materials into digitally designed 3D shapes and patterns. We discuss how plasma applications may help overcome current limitations of 3D printing in various fields, e.g. limitations of sculpting composite materials, lack of mechanical strength and the need for postprocessing. Our key focus is on the challenges, opportunities and physical mechanisms of the use of 3D printing in nano-manufacturing, defined as the fabrication of nanoscale building blocks, such as nanoparticles and nanomaterials; their assembly into higher-order (micro-scale) structures; and the integration of these structures into larger (macro-) scale devices and systems by controlling energy and matter at nanoscale. Moreover, we discuss the physico-chemical mechanisms that result in highlyconformal deposition of nanostructured materials onto 3D surfaces with microscopic (and possibly nanoscale) control of textures and inter-layer cross-linking, without the need for additional heating. We further highlight the arising opportunities for plasma nanotechnology to synergize with the emerging digital transformation platforms in surface micro-and nano-structuring using polymers, metals, metallic alloys, and other materials. These new findings in plasma-digital nanoscale fabrication may lead to a new digital manufacturing platform suitable for a number of cutting-edge applications in electronic, sensing and energy devices.

show abstract

“…In many studies, titanium implants are coated with sol-gel films containing metal additives, such as Ag [98][99][100], Cu [101], or Zn [102]. Fu et al [103] and Massa et al [104] reported the impact of Ag on bacteria growth and the biofilm formation.…”

Section: Antimicrobial Coatingsmentioning

confidence: 99%

Surface Modifications for Implants Lifetime extension: An Overview of Sol-Gel Coatings

Tranquillo

Bollino

2020

Coatings

View full text Add to dashboard Cite

The limited lifetime of implants entails having patients undergo replacement surgeries, several times throughout life in young patients, with significant risks for them and extensive cost for healthcare service. The overcoming of such inconvenience is still today a hard challenge for the scholars of the biomedical and biomaterial fields. The improvement of the currently employed implants through surface modification by coatings application is the main strategy proposed to avoid implants failure, and the sol-gel coating is an ideal technology to achieve this goal. Therefore, the present review aims to provide an overview of the most important problems leading to implant failure, the sol-gel coating technology, and its use as a strategy to overcome such issues.

show abstract

Antibacterial Silicon Oxide Thin Films Doped with Zinc and Copper Grown by Atmospheric Pressure Plasma Chemical Vapor Deposition

Cited by 15 publications

References 30 publications

Development of Antibacterial Ti-Cux Alloys for Dental Applications: Effects of Ageing for Alloys with Up to 10 wt% Cu

Development of Antibacterial Ti-Cux Alloys for Dental Applications: Effects of Ageing for Alloys with Up to 10 wt% Cu

Plasma-digital nexus: plasma nanotechnology for the digital manufacturing age

Surface Modifications for Implants Lifetime extension: An Overview of Sol-Gel Coatings

Contact Info

Product

Resources

About