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Owing to their mechanical properties, metallic materials present a promising solution in the field of resorbable implants. The magnesium metabolism in humans differs depending on its introduction. The natural, oral administration of magnesium via, for example, food, essentially leads to an intracellular enrichment of Mg(2+) . In contrast, introducing… (More)
The aim of this study is to investigate and demonstrate the mechanical and corrosive characteristics of the neodymium-containing magnesium alloy MgNd2 (Nd2), which can be used as a resorbable implant material, especially in the field of stenting applications. To determine the mechanical characteristics of Nd2, tensile and compression tests were initially… (More)
Magnesium alloys are presently investigated as potential medical implant materials for temporary applications. Magnesium has been reported to have antibacterial activities and could therefore be used to prevent antibiotic treatment-resistant bacterial implant infections. For characterizing the effects of magnesium on infectious bacteria, bioluminescent S.… (More)
Up to now, different surgical techniques and stent systems have already been developed and tested for the continuous and adequate ventilation of the frontal sinuses. However, the results achieved still remain poor. Magnesium-based implants have been successfully used in numerous clinical applications. Offering excellent biocompatibility and biodegradability… (More)
Magnesium alloys are currently being investigated for use as resorbable biomaterials. Various applications for magnesium based implant materials have already been presented. Currently, stents and structures that sustain diseased or narrowed vessels seem to be the most promising areas. This study focuses on the use of a magnesium fluoride (MgF2 ) coated… (More)
The role of amino, sulfhydryl, disulfide, carboxyl, phenolic, imidazole and indole groups on the agglutination of human erythrocytes by the lectin from Viscum album has been determined using specific chemical modification techniques. The results indicate that tyrosine residues participate in the hemagglutination reaction. Subunits of the lectin possess only… (More)
In contrast to mistletoe lectin I (ML I), viscotoxin A 3 does not inhibit protein synthesis in cell-free systems. From the immunological studies it is concluded that ML I and viscotoxin do not share identical structural domains.
Biodegradable and biocompatible magnesium alloys appear to be very promising not only for temporary clinical application but also for developing deformable and degradable medical implants. This study analyzes the in vivo degradation behavior and the impact on the paranasal sinuses of the highly ductile Mg-2 wt%Nd alloy (MgNd2) in order to provide a basis… (More)
Using several different in vitro assays, a new biodegradable magnesium alloy Mg-2La, composed of 98% magnesium and 2% lanthanum, was investigated as a possible implant material for biomedical applications. An in vitro cytotoxicity test, according to EN ISO 10993-5/12, with L929 and human osteoblastic cells identified no toxic effects on cell viability at… (More)
2 lectins from the mushroomAgaricus edulis were isolated, after heating the crude extract at 75°C, by ion exchange chromatography and gel chromatography using QAE-Sephadex A-50 and Sephadex G75. Some hemagglutinating and physicochemical properties of the agglutinins are reported.