Layer-by-Layer Fabrication of PAH/PAMAM/Nano-CaCO₃ Composite Films and Characterization for Enhanced Biocompatibility

Figure 7

Film thickness representation before and after mineralization. (a) AFM of film thickness before mineralization of (PAH/PAMAM)_7.5 and (b) SEM cross section of the films after mineralization of (PAH/PAMAM)_7.5 -CaCO₃.