Figure 3
From: Polarization of an electroactive functional film on titanium for inducing osteogenic differentiation
SKPM analysis of the surface potential of the PPTi (a) and NPTi (b). The 3D map combines the height and potential profiles and shows that the observed potential change is not due to a height change. This figure demonstrates that the surface potential of the PPTi is increased by polarization. (c) Results of zeta potential analysis for the PPTi and NPTi. Although the isoelectric points of the PPTi and NPTi were approximately equal, more negative charges were observed on the PPTi surface in a neutral solution environment.
