Evaluation of the wear-resistance of DLC-coated hard-on-soft pairings for biomedical applications

Rothammer, Benedict; Neusser, Kevin; Bartz, Marcel; Wartzack, Sandro; Schubert, Andreas; Marian, Max

doi:10.1016/j.wear.2023.204728

Cited by 12 publications

(4 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These coatings can be tailored to exhibit excellent adhesion, hardness, and wear resistance, prolonging the service life of the implant. For instance, diamond-like carbon (DLC) coatings can improve the tribological properties and corrosion resistance of metallic implants [77,78].…”

Section: Protective Nanocomposite Coatingsmentioning

confidence: 99%

An Overview of Enhancing the Performance of Medical Implants with Nanocomposites

Ramezani

Ripin

2023

J. Compos. Sci.

View full text Add to dashboard Cite

Medical implants are essential tools for treating chronic illnesses, restoring physical function, and improving the quality of life for millions of patients worldwide. However, implant failures due to infection, mechanical wear, corrosion, and tissue rejection continue to be a major challenge. Nanocomposites, composed of nanoparticles or nanofillers dispersed in a matrix material, have shown promising results in enhancing implant performance. This paper provides an overview of the current state of research on the use of nanocomposites for medical implants. We discuss the types of nanocomposites being developed, including polymer-, metal-, and ceramic-based materials, and their advantages/disadvantages for medical implant applications. Strategies for improving implant performance using nanocomposites, such as improving biocompatibility and mechanical properties and reducing wear and corrosion, are also examined. Challenges to the widespread use of nanocomposites in medical implants are discussed, such as biocompatibility, toxicity, long-term stability, standardisation, and quality control. Finally, we discuss future directions for research, including the use of advanced fabrication techniques and the development of novel nanocomposite materials. The use of nanocomposites in medical implants has the potential to improve patient outcomes and advance healthcare, but continued research and development will be required to overcome the challenges associated with their use.

show abstract

Section: Protective Nanocomposite Coatingsmentioning

confidence: 99%

An Overview of Enhancing the Performance of Medical Implants with Nanocomposites

Ramezani

Ripin

2023

J. Compos. Sci.

View full text Add to dashboard Cite

show abstract

“…Research on the impact of DLC coatings on macrophages, fibroblasts, and osteoblastlike cells, which are found in the tissues surrounding a total joint replacement, did not discover any indication that the coatings could cause cytotoxicity [70,78]. The biocompatibility of DLC with blood monocytes has also shown promising results, which is significant because monocytes regulate inflammatory processes and might affect the osseointegration of implants [70,79].…”

Section: Biomedical Application For Dlc Filmmentioning

confidence: 99%

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

2023

View full text Add to dashboard Cite

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.

show abstract

“…In a follow‐up study using a UHMWPE ball‐on‐three CoCr or Ti64 pin setup, Rothammer et al. [ 25 ] demonstrated that coating both, the polymer and the metallic component, is of decisive importance since single‐sided coating resulted in higher wear of the uncoated counter body. Regarding ta‐C coatings, Lappalainen et al.…”

Section: Introductionmentioning

confidence: 99%

“…Instead, the coatings showed signs of rather steady and gradual wear. In a follow-up study using a UHMWPE ball-on-three CoCr or Ti64 pin setup, Rothammer et al [25] demonstrated that coating both, the polymer and the metallic component, is of decisive importance since singlesided coating resulted in higher wear of the uncoated counter body. Regarding ta-C coatings, Lappalainen et al [26] showed a 30-600-fold wear rate reduction and enhanced corrosion resistance in pin-on-disk tests with ta-C-coated CoCr or Ti64 alloy pins and UHMWPE disks when lubricated with a 1% NaCl water solution.…”

Section: Introductionmentioning

confidence: 99%

Wear Mechanism of Superhard Tetrahedral Amorphous Carbon (ta‐C) Coatings for Biomedical Applications

Rothammer

Schwendner

Bartz

et al. 2023

Adv Materials Inter

Self Cite

View full text Add to dashboard Cite

Tetrahedral amorphous carbon (ta‐C) coatings have the potential to protect biomedical implants from wear and increase their service life. This study elucidates the biocompatibility, mechanical properties, adhesion, and wear resistance of ta‐C coatings fabricated by physical vapor deposition on cobalt‐chromium‐molybdenum (CoCr) and titanium (Ti64) alloys as well as ultrahigh molecular weight polyethylene (UHMWPE). Satisfactory cytocompatibility is verified using contact angle and surface tension measurements as well as indirect and direct cell testing. Scratch testing demonstrates excellent adhesion to the substrates and as confirmed by nanoindentation, the coatings represent an up to 13‐fold and 182‐fold increase in hardness on the hard and soft materials. In metal pin‐on‐UHMWPE disk sliding experiments under simulated body fluid lubrication, the wear rates of the disk are reduced by 48% (against CoCr) and 73% (against Ti64) while the pin wear rates are reduced by factors of 20 (CoCr) and 116 (Ti64) compared to uncoated pairings. From optical and laser scanning microscopy, Raman measurements, and particle analyses, it is shown that the underlying substrates remain well protected. Nonetheless, focused ion beam scanning electron microscopy revealed coating process‐related and thermally driven subductions as well as tribologically induced near‐surface fatigue, which can potentially constitute critical wear mechanisms.

show abstract

Evaluation of the wear-resistance of DLC-coated hard-on-soft pairings for biomedical applications

Cited by 12 publications

References 63 publications

An Overview of Enhancing the Performance of Medical Implants with Nanocomposites

An Overview of Enhancing the Performance of Medical Implants with Nanocomposites

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

Wear Mechanism of Superhard Tetrahedral Amorphous Carbon (ta‐C) Coatings for Biomedical Applications

Contact Info

Product

Resources

About