Characterization of physical and biomedical properties of nitrogenated diamond-like carbon films coated on polytetrafluoroethylene substrates

Khatir, S.; Hirose, Akira; Chi, Xiao

doi:10.1016/j.diamond.2015.08.003

Cited by 11 publications

(11 citation statements)

References 30 publications

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“…Linder et al (2002) demonstrated that the adhesion of monocytes on DLC deposited on glass slide, a material with low surface roughness, was slightly higher than on the control. In the case of thrombocytes, Tran et al (1999), Scheerder et al (2000) and Alanazi et al (2000) reported that the adhesion of these cells to polytetrafluoroethylene is reduced by DLC coating, however Khatir et al (2015) showed that the DLC grown in an atmosphere of 30% to 40% nitrogen may improve the adhesion of platelets to polytetrafluoroethylene. The later work is especially interesting because, beyond demonstrating that DLC influences cell adhesion, they also showed that this coating is able to both increase or decrease this effect.…”

Section: Discussionmentioning

confidence: 99%

“…This problem raised the interest of researchers in increasing the quality of the prosthesis to reduce their physical wear and making them more biocompatible. One of the main cause that reduces the orthopedic implant longevity is the high wear rate of commonly used materials such as Cobalt-Chrome-Molybdenum (Co-28Cr-6Mo) alloy and Titanium-Aluminum-Vanadium (Ti-6Al-4V) alloy, (Grill, 2003;Khatir et al, 2015;Yingmin et al, 2016). The particles resulting from wear Volume 32, Number 2, p. 144-152, 2016 of the prosthesis are harmful to the body and induce inflammation process (Grill, 2003;Hinüber et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…All these coatings have shown good results, however only the DLC thin film has been considered able to promote a reduction on metal friction at the same time that increases the wear resistance, the hardness, and the cell adhesion rate (Grill et al, 1988;Grill, 2003;Ianno et al, 1995;Jelinek et al, 2016;Khatir et al, 2015;Marciano et al, 2009). In addition, DLC films may have antibactericidal effect (Marciano et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Macrophages adhesion rate on Ti-6Al-4V substrates: polishing and DLC coating effects

et al. 2016

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Introduction: Various works have shown that diamond-like carbon (DLC) coatings are able to improve the cells adhesion on prosthesis material and also cause protection against the physical wear. On the other hand there are reports about the effect of substrate polishing, in evidence of that roughness can enhance cell adhesion. In order to compare and quantify the joint effects of both factors, i.e, polishing and DLC coating, a commonly prosthesis material, the Ti-6Al-4V alloy, was used as raw material for substrates in our studies of macrophage cell adhesion rate on rough and polished samples, coated and uncoated with DLC. Methods: The films were produced by PECVD technique on Ti-6Al-4V substrates and characterized by optical profilometry, scanning electron microscopy and Raman spectroscopy. The amount of cells was measured by particle analysis in IMAGE J software. Cytotoxicity tests were also carried out to infer the biocompatibility of the samples. Results:The results showed that higher the surface roughness of the alloy, higher are the cells fixing on the samples surface, moreover group of samples with DLC favored the cell adhesion more than their respective uncoated groups. The cytotoxity tests confirmed that all samples were biocompatible independently of being polished or coated with DLC. Conclusion: From the observed results, it was found that the rougher substrate coated with DLC showed a higher cell adhesion than the polished samples, either coated or uncoated with the film. It is concluded that the roughness of the Ti-6Al-4V alloy and the DLC coating act complementary to enhance cell adhesion.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Macrophages adhesion rate on Ti-6Al-4V substrates: polishing and DLC coating effects

et al. 2016

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“…Nitrogenated DLC films have been exploited as both electrochemical probes for trace metal analysis and as coatings for glucose oxidase biosensor selective membranes [116][117][118][119].…”

Section: Diamond-like Carbonmentioning

confidence: 99%

Carbon nanomaterials and their application to electrochemical sensors: a review

Power¹,

Gorey²,

Chandra³

et al. 2018

Nano Online

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Carbon has long been applied as an electrochemical sensing interface owing to its unique electrochemical properties. Moreover, recent advances in material design and synthesis, particularly nanomaterials, has produced robust electrochemical sensing systems that display superior analytical performance. Carbon nanotubes (CNTs) are one of the most extensively studied nanostructures because of their unique properties. In terms of electroanalysis, the ability of CNTs to augment the electrochemical reactivity of important biomolecules and promote electron transfer reactions of proteins is of particular interest. The remarkable sensitivity of CNTs to changes in surface conductivity due to the presence of adsorbates permits their application as highly sensitive nanoscale sensors. CNT-modified electrodes have also demonstrated their utility as anchors for biomolecules such as nucleic acids, and their ability to diminish surface fouling effects. Consequently, CNTs are highly attractive to researchers as a basis for many electrochemical sensors. Similarly, synthetic diamonds electrochemical properties, such as superior chemical inertness and biocompatibility, make it desirable both for (bio) chemical sensing and as the electrochemical interface for biological systems. This is highlighted by the recent development of multiple electrochemical diamond-based biosensors and bio interfaces.Keywords: bio sensors; carbon nanomaterials; carbon nanotubes; electrochemical sensing; synthetic diamond Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.

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“…Production of anti-microbial low density polyethylene films and hydrophilic polymer structures [13], processing of hydroxyl cellulose films [14], GaN nanostructures containing nano-wire and nano-particles [15], nitrogen oxide processing [16], production of high activity plasma welding for the storage of silicon nitride films [17], modification of amorphous SiO2 nanoparticles [18], single crystal production [19], modification of stainless steel surfaces (ion implantation) [20], treatment of indium tin oxide (ITO) films [21], graphene and graphite structures [22], surface modification of polyacrylonitrile copolymer structures [23], diamond building carbon (DLC) production [24], annealing Ta2O5 films [25] are examples of applications of material processing of cold plasma produced with low pressure nitrogen gas/gas mixtures.…”

Section: Introductionmentioning

confidence: 99%

Optical Investigations of N2 Atmospheric Pressure Plasma Jets

İlik

Durmuş

Akan

2020

Adıyaman University Journal of Science

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In this study, firstly, N2 atmospheric pressure plasma jet (APPJ) system was presented. Nitrogen gas discharges are produced as jet using an AC power supply which can be adjusted between 6-18 kV and the frequency value of 13-20 kHz at atmospheric pressure. The change of length of produced atmospheric pressure nitrogen plasma jet, according to gas flow rate has been investigated and the produced jet length was approximately 2 cm for 5 L/min when the applied voltage was 18 kV and the frequency was 15 kHz. Nitrogen plasma jet produced at atmospheric pressure was examined with optical emission spectroscopy (OES) and the correlation between gas flow rate and emission spectra were investigated. Furthermore, electron temperature and electron density of atmospheric pressure nitrogen gas plasma jet were estimated under different flow rates of N2 gas.

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Characterization of physical and biomedical properties of nitrogenated diamond-like carbon films coated on polytetrafluoroethylene substrates

Cited by 11 publications

References 30 publications

Macrophages adhesion rate on Ti-6Al-4V substrates: polishing and DLC coating effects

Macrophages adhesion rate on Ti-6Al-4V substrates: polishing and DLC coating effects

Carbon nanomaterials and their application to electrochemical sensors: a review

Optical Investigations of N2 Atmospheric Pressure Plasma Jets

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