In vitro corrosion resistance of a layer-by-layer assembled DNA coating on magnesium alloy

Cui, L, Fang, X, Cao, W, Zeng, R, Li, S, Chen, X, Zou, Y, Guan, S and Han, E 2018, 'In vitro corrosion resistance of a layer-by-layer assembled DNA coating on magnesium alloy', Applied Surface Science, vol. 457, pp. 49-58.


Document type: Journal Article
Collection: Journal Articles

Title In vitro corrosion resistance of a layer-by-layer assembled DNA coating on magnesium alloy
Author(s) Cui, L
Fang, X
Cao, W
Zeng, R
Li, S
Chen, X
Zou, Y
Guan, S
Han, E
Year 2018
Journal name Applied Surface Science
Volume number 457
Start page 49
End page 58
Total pages 10
Publisher Elsevier BV * North-Holland
Abstract A (polyvinylpyrrolidone (PVP)/deoxyribonucleic acid (DNA))n coating was fabricated via layer-by-layer (LbL) assembly dip coating method. The surface morphologies, chemical compositions and corrosion resistances of the coatings were investigated using field-emission scanning electron microscopy, X-ray photoelectron spectrometer, Fourier transform infrared, X-ray diffractometer and electrochemical and hydrogen evolution measurements. The results indicated that the (PVP/DNA)n coating shows a smooth surface with shallow scratches and some corrosion cracks, which possesses a good corrosion resistance in simulated body fluid, especially for n = 20. The (PVP/DNA)n coating can be used as a inducer to construct a biomimetic biocompatible Ca-P coating on Mg alloys. Additionally, we suggest and discuss a corrosion mechanism for the coating.
Subject Metals and Alloy Materials
Keyword(s) Biomaterial
Coating
Corrosion
Layer-by-layer assembly
Magnesium alloy
DOI - identifier 10.1016/j.apsusc.2018.06.240
Copyright notice © 2018 Elsevier B.V. All rights reserved.
ISSN 0169-4332
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