Biocorrosion of 316LV steel used in oral cavity due to Desulfotomaculum nigrificans bacteria

Corrosion processes of metallic biomaterials in the oral cavity pose a significant limitation to the life and reliable functioning of dental materials. In this article, the influence of environment bacteria Desulfotomaculum nigrificans sulfate reducing bacteria on the corrosion processes of 316LV st...

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Bibliographic Details
Published in:Journal of biomedical materials research. Part B, Applied biomaterials Applied biomaterials, 2017-01, Vol.105 (1), p.222-229
Main Authors: Mystkowska, Joanna, Ferreira, Jose A, Leszczyńska, Katarzyna, Chmielewska, Sylwia, Dąbrowski, Jan Ryszard, Wieciński, Piotr, Kurzydłowski, Krzysztof Jan
Format: Article
Language:English
Subjects:
Bacteria
Bacterial corrosion
Biofilms - growth & development
Biomaterials
Biomedical materials
Chemical composition
Corrosion
Dental materials
Desulfotomaculum - physiology
Humans
Image analysis
Image processing
Laser microscopy
Materials research
Materials science
Microscopy
Mouth - microbiology
Oral cavity
Organic chemistry
Oxygen
Photoelectrons
Pitting (corrosion)
Scanning transmission electron microscopy
Size reduction
Spectrometry
Steel
Steel - chemistry
Sulfate reduction
Sulfate-reducing bacteria
Sulfur
Thickness
Transmission electron microscopy
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Summary:Corrosion processes of metallic biomaterials in the oral cavity pose a significant limitation to the life and reliable functioning of dental materials. In this article, the influence of environment bacteria Desulfotomaculum nigrificans sulfate reducing bacteria on the corrosion processes of 316LV steel was assessed. After 14 and 28 days of contact of the material with the bacterial environment, the surfaces of the tested biomaterial were observed by means of confocal scanning laser microscopy, and their chemical composition was studied using X-Ray Photoelectron Spectrometry and a scanning transmission electron microscopy. Corrosive changes, the presence of sulfur (with atomic concentration of 0.5%) on the surface of the biomaterial and the presence of a thin oxide layer (thickness of ∼20 nm) under the surface of the steel were observed. This corrosion layer with significant size reduction of grains was characterized by an increased amount of oxygen (18% mas., p 
ISSN:1552-4973
1552-4981
DOI:10.1002/jbm.b.33518