Antibacterial effect of Cu/C:F nanocomposites deposited on PEEK substrates

Kratochvíl, Jiří; Štěrba, Ján; Lieskovská, Jaroslava; Langhansová, Helena; Kuzminova, Anna; Khalakhan, Ivan; Kylián, Ondřej; Straňák, Vítězslav

doi:10.1016/j.matlet.2018.07.082

Cited by 26 publications

(20 citation statements)

References 15 publications

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“…During osseointegration processes, it is very important to inhibit the development of the bacterial microfilm, which can cause inflammations that may be dangerous for patients' health or even be the reason for implant rejection. [35] Among the most effective methods for preventing the development of bacterial microfilm on PEEK coatings is the use of antibacterial agents, such as sulfur, [36][37][38] silver, [29,39] copper, [40] silicon nitride [41] and chitosan. [20,21] Another widely examined aseptic factor is MoS 2 .…”

Section: Introductionmentioning

confidence: 99%

Development of Microstructure and Properties of Multicomponent MoS2/HA/PEEK Coatings on a Titanium Alloy Via Electrophoretic Deposition and Heat Treatment

Kuśmierczyk

Zimowski

Łukaszczyk

et al. 2021

Metall Mater Trans A

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In this study, molybdenum disulfide nanosheets, bioactive hydroxyapatite particles of two types in various amounts, and PEEK 704 microparticles were electrophoretically co-deposited to fabricate multicomponent coatings on Ti-13Nb-13Zr alloy substrates. A mixture of pure ethanol and cationic chitosan polyelectrolyte was used as a dispersion medium. The kinetics and mechanism of deposition were investigated. The kinetics depended significantly on the suspension’s chemical composition and the voltage used during EPD. Cationic chitosan provided the steric stabilization of the suspension and enabled cathodic co-deposition of all coating components. Green macroscopically homogeneous coatings were subsequently heat treated. The treatment densified the coatings and caused the formation of a stable semi-crystalline PEEK matrix consisting of spherulites. The MoS2 nanosheet packages, separate HA particles and their agglomerates were embedded in the coating matrix. After heat treatment, both types of coatings, differing in HA type, were characterized by excellent adhesion to the substrate and moderate scratch resistance. During surface topography investigation, it was found that coatings containing smaller HA nanoparticles had a slightly lower surface roughness. The coatings raised the corrosion resistance of the titanium alloy substrate in Ringer’s solution. The possibility of the electrophoretic co-deposition of various ceramic and PEEK particles to develop multicomponent coatings, as well as their contribution to enhancing titanium alloy surface properties, represents an important input in further developing superior bioactive titanium implants.

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Section: Introductionmentioning

confidence: 99%

Development of Microstructure and Properties of Multicomponent MoS2/HA/PEEK Coatings on a Titanium Alloy Via Electrophoretic Deposition and Heat Treatment

Kuśmierczyk

Zimowski

Łukaszczyk

et al. 2021

Metall Mater Trans A

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“…The superhydrophobic fabric prevents water permeation through its diffusion layer restricting the interaction of Cu NPs with an aqueous medium. Hence much lower ion release is achieved and a smaller number of Cu ions could reach the bacteria …”

Section: Resultsmentioning

confidence: 99%

Superwettable antibacterial textiles for versatile oil/water separation

Vaidulych

Shelemin

Hanuš

et al. 2019

Plasma Processes & Polymers

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A gas-phase deposition process based on the combination of nanoparticles (NPs) and thin films is developed to obtain either superhydrophobic or superamphiphilic nanocomposite coatings on filtration membranes. Superhydrophobic membranes are produced on nonwoven viscose fabric and they demonstrate selective absorption of nonpolar organic solvents from oil/water mixtures. Superamphiphilic membranes are produced on carbon cloth and found suitable for smart separation of light oil or heavy oil from water, with the efficiency above 99.97%. Incorporation of Cu NPs endow both types of the membranes with antibacterial properties. A twofold reduction in the metabolic activity of Escherichia coli is achieved after 24 hr of the incubation, which proves this environmentally friendly approach to be perspective for the development of multifunctional porous K E Y W O R D S antibacterial properties, nanocomposite coatings, oil/water separation, selective absorption, superhydrophobicity, underwater superoleophobicity Plasma Process Polym. 2019;16:e1900003 www.plasma-polymers.com

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“…Such a low value of surface roughness highlights the very smooth characteristic of the C:H:N:O film, and since the sputtering process was performed under a relatively high pressure of 3 Pa and low power, it was assumed that such a film would probably copy the surface topography of the underlying diamond foil and not destroy it. The adhesion of the carbon-containing C:H:N:O film to the diamond as a carbon structure can be expected to be high, because of both (i) the possible activation of the nanodiamond surface by the plasma [37], which may lead to the creation of covalent bonds between the nanodiamond and the C:H:N:O film, and (ii) the relatively high surface energy of the C:H:N:O material, i.e., 46 mJ/m 2 , composed of a polar part of 24 mJ/m 2 and a dispersive part of 21 mJ/m 2 , as measured in our previous study [36], which can lead to electrostatic and dispersive interaction between both materials. Another important parameter is the stability of C:H:N:O in water-based environments.…”

Section: Topography Of Nylon and Stability In Watermentioning

confidence: 99%

“…Polymers from PTFE [34], polyethylene [35], and nylon [36] targets have already been prepared by this method in previous studies. Plasma polymers usually copy the topography of the underlying surface; therefore, the material is ideal for nanostructure stabilization, as was shown with nanoparticles [37]. Plasma polymers can be further tailored by changing the deposition conditions with regards to the water stability, the presence of functional groups, and surface energy.…”

mentioning

confidence: 99%

Physicochemical and Mechanical Performance of Freestanding Boron-Doped Diamond Nanosheets Coated with C:H:N:O Plasma Polymer

et al. 2020

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The physicochemical and mechanical properties of thin and freestanding heavy boron-doped diamond (BDD) nanosheets coated with a thin C:H:N:O plasma polymer were studied. First, diamond nanosheets were grown and doped with boron on a Ta substrate using the microwave plasma-enhanced chemical vapor deposition technique (MPECVD). Next, the BDD/Ta samples were covered with nylon 6.6 to improve their stability in harsh environments and flexibility during elastic deformations. Plasma polymer films with a thickness of the 500-1000 nm were obtained by magnetron sputtering of a bulk target of nylon 6.6. Hydrophilic nitrogen-rich C:H:N:O was prepared by the sputtering of nylon 6.6. C:H:N:O as a film with high surface energy improves adhesion in ambient conditions. The nylon-diamond interface was perfectly formed, and hence, the adhesion behavior could be attributed to the dissipation of viscoelastic energy originating from irreversible energy loss in soft polymer structure. Diamond surface heterogeneities have been shown to pin the contact edge, indicating that the retraction process causes instantaneous fluctuations on the surface in specified microscale regions. The observed Raman bands at 390, 275, and 220 cm −1 were weak; therefore, the obtained films exhibited a low level of nylon 6 polymerization and short-distance arrangement, indicating crystal symmetry and interchain interactions. The mechanical properties of the nylon-on-diamond were determined by a nanoindentation test in multiload mode. Increasing the maximum load during the nanoindentation test resulted in a decreased hardness of the fabricated structure. The integration of freestanding diamond nanosheets will make it possible to design flexible chemical multielectrode sensors.Materials 2020, 13, 1861 2 of 15 counterparts [4,5]. Since the first exfoliated graphene flake, the field of thin-layered materials and their possible applications have increased significantly, resulting in numerous papers on semiconducting nanomaterials including phosphorene [6], germanene [7], silicene [8], and carbon materials such as graphene [9], nanowall [10], and nanodiamond [11]. Nevertheless, the incorporation of nanoscale materials into various, well-defined architectures is still challenging. The majority of nanomaterials are fabricated with the requirement of a supporting substrate [12], which creates many obstacles in their integration into nanomaterial-based devices [13]. The design of these nanoscale devices demands the development of flexible freestanding nanostructures, providing additional accessibility to multidimensional interactions.Diamond, among other carbon materials, is recognized for its excellent mechanical [14] and optical [15] properties, and outstanding biocompatibility [16]. Even though pristine diamond is electrically insulating, it can become a semiconductor by incorporating dopants into its structure [17]. One of the most commonly used dopants is boron, changing diamond into a p-type semiconductor, and allowing diamond-based structures to be an important ...

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Antibacterial effect of Cu/C:F nanocomposites deposited on PEEK substrates

Cited by 26 publications

References 15 publications

Development of Microstructure and Properties of Multicomponent MoS2/HA/PEEK Coatings on a Titanium Alloy Via Electrophoretic Deposition and Heat Treatment

Development of Microstructure and Properties of Multicomponent MoS2/HA/PEEK Coatings on a Titanium Alloy Via Electrophoretic Deposition and Heat Treatment

Superwettable antibacterial textiles for versatile oil/water separation

Physicochemical and Mechanical Performance of Freestanding Boron-Doped Diamond Nanosheets Coated with C:H:N:O Plasma Polymer

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