My research activities focus on biomaterials, i.e. artificial materials used in reconstructive surgery, which may have huge clinical impact in terms of usage and diversity. The associated research topics span from applied research to basic. The project area "Orthopedic biomaterials" has had an expertise function in Helse Bergen. The activities are designed to involve biomechanical, biological and chemical effects of artificial materials used on humans. The activity is based on clinical aspects, and is therefore translational; from clinic to laboratory. The biomaterial laboratory (BioMatLab) is situated in the new laboratory facilities at Haukeland University Hospital and Department of Clinical Medicine, UiB, which provides a unique opportunity to connect basic research with clinical activities in the field of biomaterials.
There is a strong collaboration with the Norwegian Arthroplasty Register in Bergen, which represents an important body for identifying longevity of joint replacements.
I have extensive experience in clinical and biological issues, which started with the analysis of trace metals in lung tissue in the Master thesis and continued with my PhD work on the chemical analysis of a large clinical material taken from patients with dental amalgam fillings.
The activities that were started in the postdoctoral period, is further developed under my stipend from Bergen Medical Research Foundation (2010-2013). The project deals with the clinical and biological effects of implants that remain in the body. This is performed by characterize the degradation products in tissue and blood from patients with different types of implants, and correlate with clinical analysis, such as effects on bone cells and immune system.
The ongoing and planned activities will broaden the knowledge of biological and clinical consequences of artificial biomaterials, which can be used in developing new and safer materials.
- 2019. Corrosion and metal release from overlapping arterial stents under mechanical and electrochemical stress - An experimental study. Journal of The Mechanical Behavior of Biomedical Materials. 93: 31-35. doi: 10.1016/j.jmbbm.2019.02.001
- 2018. Novel nanoparticulate and ionic titanium antigens for hypersensitivity testing. International Journal of Molecular Sciences. 19:1101: 1-18. doi: 10.3390/ijms19041101
- 2017. Early aseptic loosening of a mobile-bearing total knee replacement: A case-control study with retrieval analyses. Acta Orthopaedica. 89: 77-83. Published 2017-11-06. doi: 10.1080/17453674.2017.1398012
- 2017. Impact of maternal selenium status on infant outcome during the first 6 months of life. Nutrients. 9. doi: 10.3390/nu9050486
- 2017. The impact of metal ion exposure on the cellular behavior of human osteoblasts and PBMCs: In vitro analyses of osteolytic processes. Materials. 10:734: 1-15. Published 2017-07-03. doi: 10.3390/ma10070734
- 2015. Wear particles and ions from cemented and uncemented titanium-based hip prostheses - A histological and chemical analysis of retrieval material. Journal of Biomedical Materials Research. Part B - Applied biomaterials. 103: 709-717. doi: 10.1002/jbm.b.33243
Bergen Implant Retrieval center for Implants
My on-going project is about improving performance and safety of clinical biomaterials.
Bergen retrieval center for implants is collecting and analyzing joint prostheses that have failed due to aseptic loosening, often in combination with osteolysis or other immunological reactions.
I have specialised in trace element analysis, mainly on clinically related samples. Main elements of interest are Co, Cr, Zr, Mo, Ni and Ti measured by ICP-MS.