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Dohm JC, Schmidt S, Puente Reyna AL, Richter B, Santana A, Grupp TM. Comparative Study of Zirconium Nitride Multilayer Coatings: Crystallinity, In Vitro Oxidation Behaviour and Tribological Properties Deposited via Sputtering and Arc Deposition. J Funct Biomater 2024; 15:223. [PMID: 39194662 DOI: 10.3390/jfb15080223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Revised: 08/09/2024] [Accepted: 08/10/2024] [Indexed: 08/29/2024] Open
Abstract
This study aims to evaluate and compare the properties of a biomedical clinically established zirconium nitride (ZrN) multilayer coating prepared using two different techniques: pulsed magnetron sputtering and cathodic arc deposition. The investigation focuses on the crystalline structure, grain size, in-vitro oxidation behaviour and tribological performance of these two coating techniques. Experimental findings demonstrate that the sputter deposition process resulted in a distinct crystalline structure and smaller grain size compared to the arc deposition process. Furthermore, in vitro oxidation caused oxygen to penetrate the surface of the sputtered ZrN top layer to a depth of 700 nm compared to 280 nm in the case of the arc-deposited coating. Finally, tribological testing revealed the improved wear rate of the ZrN multilayer coating applied by sputter deposition.
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Affiliation(s)
- Julius C Dohm
- Research & Development, Aesculap AG, 78532 Tuttlingen, Germany
- Musculoskeletal University Center Munich (MUM), Department of Orthopaedic and Trauma Surgery, Ludwig Maximilians University Munich, Campus Grosshadern, 81377 Munich, Germany
| | - Susann Schmidt
- Department of Medical Engineering, IHI Ionbond AG, 4657 Dulliken, Switzerland
| | | | - Berna Richter
- Research & Development, Aesculap AG, 78532 Tuttlingen, Germany
| | - Antonio Santana
- Department of Medical Engineering, IHI Ionbond AG, 4657 Dulliken, Switzerland
| | - Thomas M Grupp
- Research & Development, Aesculap AG, 78532 Tuttlingen, Germany
- Musculoskeletal University Center Munich (MUM), Department of Orthopaedic and Trauma Surgery, Ludwig Maximilians University Munich, Campus Grosshadern, 81377 Munich, Germany
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Sellin ML, Seyfarth-Sehlke A, Aziz M, Fabry C, Wenke K, Høl PJ, Rios-Mondragon I, Cimpan MR, Frank M, Bader R, Jonitz-Heincke A. Isolation of TiNbN wear particles from a coated metal-on-metal bearing: Morphological characterization and in vitro evaluation of cytotoxicity in human osteoblasts. J Biomed Mater Res B Appl Biomater 2024; 112:e35357. [PMID: 38247242 DOI: 10.1002/jbm.b.35357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 10/18/2023] [Accepted: 11/15/2023] [Indexed: 01/23/2024]
Abstract
To improve the wear resistance of articulating metallic joint endoprostheses, the surfaces can be coated with titanium niobium nitride (TiNbN). Under poor tribological conditions or malalignment, wear can occur on these implant surfaces in situ. This study investigated the biological response of human osteoblasts to wear particles generated from TiNbN-coated hip implants. Abrasive particles were generated in a hip simulator according to ISO 14242-1/-2 and extracted with Proteinase K. Particle characteristics were evaluated by electron microscopy and energy dispersive x-ray spectroscopy (EDS), inductively coupled plasma mass spectrometry (ICP-MS) and dynamic light scattering (DLS) measurements. Human osteoblasts were exposed to different particle dilutions (1:20, 1:50, and 1:100), and cell viability and gene expression levels of osteogenic markers and inflammatory mediators were analyzed after 4 and 7 days. Using ICP-MS, EDS, and DLS measurements, ~70% of the particles were identified as TiNbN, ranging from 39 to 94 nm. The particles exhibited a flat and subangular morphology. Exposure to particles did not influence cell viability and osteoblastic differentiation capacity. Protein levels of collagen type 1, osteoprotegerin, and receptor activator of nuclear factor κB ligand were almost unaffected. Moreover, the pro-inflammatory response via interleukins 6 and 8 was minor induced after particle contact. A high number of TiNbN wear particles only slightly affected osteoblasts' differentiation ability and inflammatory response compared to metallic particles. Nevertheless, further studies should investigate the role of these particles in peri-implant bone tissue, especially concerning other cell types.
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Affiliation(s)
- Marie-Luise Sellin
- Department of Orthopaedics, Biomechanics and Implant Technology Research Laboratory, Rostock University Medical Center, Rostock, Germany
| | - Anika Seyfarth-Sehlke
- Department of Orthopaedics, Biomechanics and Implant Technology Research Laboratory, Rostock University Medical Center, Rostock, Germany
| | - Mahammad Aziz
- Department of Orthopaedics, Biomechanics and Implant Technology Research Laboratory, Rostock University Medical Center, Rostock, Germany
| | | | | | - Paul Johan Høl
- Department of Orthopaedic Surgery, Biomatlab, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Medicine, Biomaterials, University of Bergen, Bergen, Norway
| | - Ivan Rios-Mondragon
- Department for Clinical Dentistry Biomaterials, University of Bergen, Bergen, Norway
| | - Mihaela Roxana Cimpan
- Department for Clinical Dentistry Biomaterials, University of Bergen, Bergen, Norway
| | - Marcus Frank
- Medical Biology and Electron Microscopy Center, Rostock University Medical Center, Rostock, Germany
- Department Life, Light and Matter, University of Rostock, Rostock, Germany
| | - Rainer Bader
- Department of Orthopaedics, Biomechanics and Implant Technology Research Laboratory, Rostock University Medical Center, Rostock, Germany
- Department Life, Light and Matter, University of Rostock, Rostock, Germany
| | - Anika Jonitz-Heincke
- Department of Orthopaedics, Biomechanics and Implant Technology Research Laboratory, Rostock University Medical Center, Rostock, Germany
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