Figure 2.

PCA scores (left) and loadings (right) plot comparing positive ion ToF-SIMS data from UV- and redox-polymerized bilayers. While the same peaks are found on both types of surfaces, peaks associated with the lipid head group (C₃H₈N⁺, C₅H₄NO₄P⁺, etc.) loaded more strongly with the redox-polymerized PSLBs. Peaks associated with the lipid tails (C₃H₈O⁺, etc.) and silicon (Si⁺, SiOH⁺, etc.) loaded more strongly with the UV-polymerized PSLBs.