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. Author manuscript; available in PMC: 2015 Jun 25.
Published in final edited form as: Exp Cell Res. 2013 Oct 7;320(1):79–91. doi: 10.1016/j.yexcr.2013.09.016

Fig. 2.

Fig. 2

Model system. (A) Human dermal fibroblasts were subjected to Zn–Cu galvanic microparticles, in a three-layer system designed to mimic the application of crème containing microparticles to human skin. (B) Three-Dimensional model of semispherical Cu specks (radius = 0.5 μm) on a Zn particle (diameter = 8 μm). (C) Two-Dimensional finite-element model color map of electric potential surrounding a 0.75% Cu on Zn particle. (D) Calculated currents and intermediate parameters for varying concentrations of microparticles within the model system.