Exploring the effects of organic molecules on the degradation of magnesium under cell culture conditions. (March 2018)

• Record Type: Journal Article
• Authors: Hou, Rui-Qing; Scharnagl, Nico; Feyerabend, Frank; Willumeit-Römer, Regine
• Is Part Of: Corrosion science. Volume 132(2018)
• Page Start: 35
• Page End: 45
• Publication Date: 2018-03
• Subjects: IR spectroscopy -- XRD -- Amorphous structures -- Interface -- Kinetic parameters; Corrosion and anti-corrosives -- Periodicals; 620.11223
• DOI: 10.1016/j.corsci.2017.12.023
• Languages: English
• ISSNs: 0010-938X

Abstract

Graphical abstract: Highlights: Organic molecules affect the formation of crystalline precipitates on Mg surface. Organic molecules promote the formation of phosphate in "inner" degradation layer. Organic components should be added in testing medium during in vitro investigation. Abstract: Several typical organic components, l -ascorbic acid (l -AA), l -glutamine (l -Gln), l -alanyl-l -glutamine (l -Ala-l -Gln) and fetal bovine serum (FBS) were chosen to elucidate the effects of organic components on the degradation of pure Mg under cell culture conditions. The results revealed that the influence of organic components on the degradation of pure Mg is time-dependent and they play an important role in the formation of the degradation layer. The addition of organic components favors the precipitation of nesquehonite rather than hydromagnesite in the "outer" layer, while in the "inner" layer the organic components accelerates the formation of phosphate (Mg-PO4, Ca-P salts) during immersion.