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. Author manuscript; available in PMC: 2014 Apr 8.
Published in final edited form as: Langmuir. 2011 Apr 20;28(4):2281–2287. doi: 10.1021/la102606k

Figure 4.

Figure 4

PCA scores (top) and loadings (bottom) of ToF-SIMS data collected from ppNIPAM (triangles) and spNIPAM (asterisks) films. There is a distinct separation between the data obtained from samples prepared by the two deposition methods, which is due to the silicon based sol gel (TEOS) used for spNIPAM deposition.