Electrophoretic deposition of protein coatings on pretreated Magnesium


Investigator: Franziska Dellert (Bachelor student) Franziska Dellert


Supervisor: Muhammad Atiq Ur Rehman, Yuyun Yang, Prof. Dr.-Ing. habil. Aldo R. Boccaccini

The aim of this Bachelor project is to produce protein-based coatings on pure magnesium (Mg) via electrophoretic deposition (EPD) in order to control the corrosion and degradation rate [1]. At first, the coatings will be optimized on 316L stainless steel [2]. Several material characterization techniques will be used such as FTIR, SEM, EDX and bend test. After the best parameters have been determined, these will be applied on magnesium to produce crack-free, well-adhered coatings. The Mg substrate will be pretreated prior to EPD. Furthermore, electrochemical measurements will be carried out to determine the corrosion behavior of magnesium before and after the protein coating [3].

[1] Hornberger H., Virtanen S., Boccaccini A.R.: “Biomedical coatings on magnesium alloys – A review”: Acta Biomaterialia, vol. 8, pp. 2442-2455, 2012.

[2] Kaya S., Boccaccini A.R.: “Electrophoretic deposition of Zein coatings”: Journal of Coatings Technology and Research, vol. 14, pp. 683-689, 2017.

[3] Heise S. et al.: “Electrophoretic deposition and characterization of chitosan/bioactive glass composite coatings on Mg alloy substrates”: Electrochimica Acta, vol. 232, pp. 456-464, 2017.