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. 2011 Sep 22;6(9):e25411. doi: 10.1371/journal.pone.0025411

Figure 9. Nitrogen levels on serum immersed parylene-C and SiO2 after 1 or 3 SDS rinses.

Figure 9

(A) Parylene-C. (B) SiO2. The first bar in both graphs denotes nitrogen levels in control samples that were immersed only in distilled sterile water, while the second bar is associated with control samples immersed in horse serum. Nitrogen is easily removed from serum immersed SiO2 substrates after 1 or 3 SDS rinses. On the other hand, significant nitrogen levels remain on serum immersed parylene-C surfaces even after 3 rinses with SDS. Three dots represent statistical significance of P≤0.001.