Characterization of the electrophoretic deposition, microstructure and selected properties of chitosan coatings with curcumin on titanium substrates - research data

The zeta potential of solutions with various curcumin content in ethanol or isopropanol proved their relatively low electrophoretic mobility. Thus, curcumin was co-deposited with chitosan molecules on the cathode.

Multiple routes of preparation of the dispersed system for the EPD process have been analyzed to obtain homogeneous coatings, and the influence of the curcumin solvent, the mixing time, and the EPD parameters on the morphology of the coatings has been investigated. The results showed that homogeneous coatings were obtained by dissolving up to 1 g/L of curcumin powder in ethanol before adding the chitosan solution and performing the deposition process using 10 V for 6 minutes.