Soft diamond-like carbon coatings with superior biocompatibility for medical applications

Zia, Abdul Wasy; Anestopoulos, Ioannis; Panayiotidis, Mihalis Ι.; Birkett, Martin

doi:10.1016/j.ceramint.2023.02.085

Cited by 20 publications

(8 citation statements)

References 87 publications

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“…The advantages of diamond-like carbon coatings include their outstanding mechanical qualities, low coefficient of friction, antiwear properties, strong adhesion to the substrate, and biocompatibility. In simulated body fluid, amorphous carbon has exhibited bio-inertness and a non-toxic response toward osteoblast-like cells [53][54][55][56][57]. Furthermore, DLC films can improve endothelization on medical implants and reduce thrombotic clots [29].…”

Section: Biomedical Application For Dlc Filmmentioning

confidence: 99%

“…Due to these characteristics, it is perfect as a coating for orthopedic, dental, and cardiovascular applications. DLC coatings are applied to a variety of items, including dental implants, intraocular lenses, stents, catheters, and heart valves [13,53,54,58,59]. To expand their applications, the protective coatings' hydrophobicity and wear resistance should be further enhanced.…”

Section: Biomedical Application For Dlc Filmmentioning

confidence: 99%

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Preparation and Characterization of Diamond-like Carbon Coatings for Biomedical Applications—A Review

2023

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Diamond-like carbon (DLC) films are generally used in biomedical applications, mainly because of their tribological and chemical properties that prevent the release of substrate ions, extend the life cycle of the material, and promote cell growth. The unique properties of the coating depend on the ratio of the sp3/sp2 phases, where the sp2 phase provides coatings with a low coefficient of friction and good electrical conductivity, while the share of the sp3 phase determines the chemical inertness, high hardness, and resistance to tribological wear. DLC coatings are characterized by high hardness, low coefficient of friction, high corrosion resistance, and biocompatibility. These properties make them attractive as potential wear-resistant coatings in many compelling applications, including optical, mechanical, microelectronic, and biomedical applications. Another great advantage of DLC coatings is that they can be deposited at low temperatures on a variety of substrates and can thus be used to coat heat-sensitive materials, such as polymers. Coating deposition techniques are constantly being improved; techniques based on vacuum environment reactions are mainly used, such as physical vapor deposition (PVD) and chemical vapor deposition (CVD). This review summarizes the current knowledge and research regarding diamond-like carbon coatings.

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Section: Biomedical Application For Dlc Filmmentioning

confidence: 99%

Section: Biomedical Application For Dlc Filmmentioning

confidence: 99%

Preparation and Characterization of Diamond-like Carbon Coatings for Biomedical Applications—A Review

2023

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“…MoS 2 and DLC combined with an amorphous phase can form a heterogeneous transfer film [4]. Due to the superior mechanical properties and biocompatibility of DLC coatings, their biomedical applications are continuously increasing [5].…”

Section: Introductionmentioning

confidence: 99%

Surface morphology change in DLC: H coatings with gradient Cr under high temperature and high pressure

Ni,

Liu,

2024

J. Phys.: Conf. Ser.

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The pressure influence of the surface morphology of DLC: H Coatings with gradient Cr (DCr) was studied by annealing in argon (HT effect) and HIPping (HT/HP effect). The results show that the voids formed on the HIPping annealed surface are rose-shaped with multi-layered edges but the edge of the voids formed on the argon annealed surface looks single-layered, and the composition of the coating surface is the same after HIPping and argon annealing. The Cr content at the bottom of the voids is higher in the HIPped surface than the argon annealed surface, and the voids formed in the HIPping annealed are relatively smaller but deeper than those in the argon. It is reasonable to deduce that the hydrogen release could have been restricted by the applied high compressive pressure on the surface.

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“…With a few decades of research, a deep understanding of DLC coating performance is acquired, the preparation method of DLC coating tends to be more mature, and more characterization methods have been used to further analyze DLC coatings. Hence, the application area has been expanded [2][3][4][5]. From an application point of view, new requirements in the microstructure and function of coating material are demanded [6].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and surface morphology change of hydrogenated diamond-like carbon coating with gradient Cr and Si under high temperature and high pressure

Ni,

Liu,

2024

J. Phys.: Conf. Ser.

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A series of annealing treatments were designed to investigate the microstructure structure and surface morphology of hydrogenated diamond-like carbon coating with gradient Cr and Si (DCrSi) in different environments (argon & isostatic pressure) at different temperatures (400°C, 500°C, and 600°C). The pressure effect on the stability of DCrSi coatings was deduced from the analysis of the microstructure structure and surface morphology by using scanning electron microscopy (SEM), surface roughness test, and Raman spectroscopy. The experiment results show that no apparent change to the layer structure can be found in the argon annealed and HIPped coatings. Similar to argon annealed coatings, with increasing HIPping temperature, the surface roughness of coatings increases, and the sp3 content of the coatings reduces. The relatively low roughness of the HIPped surfaces compared with the argon annealed ones could be attributed to the delayed transformation from sp3 carbon bonding to sp2 carbon bonding (i.e., graphitization) by high pressure. Compared with Si-free DCr coating, for Si-containing DCrSi coatings, Si bonded with C from broken C-H bonding and C-C bonding to form SiC quasi compound. Adding silicon into DLC can increase the density of the coatings.

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Soft diamond-like carbon coatings with superior biocompatibility for medical applications

Cited by 20 publications

References 87 publications

Preparation and Characterization of Diamond-like Carbon Coatings for Biomedical Applications—A Review

Preparation and Characterization of Diamond-like Carbon Coatings for Biomedical Applications—A Review

Surface morphology change in DLC: H coatings with gradient Cr under high temperature and high pressure

Microstructure and surface morphology change of hydrogenated diamond-like carbon coating with gradient Cr and Si under high temperature and high pressure

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