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

Figure 8. Nitrogen levels on parylene-C and SiO2 over a period of three weeks.

Figure 8

(A) Parylene-C. (B) SiO2. On control samples (parylene-C and SiO2), overnight levels of nitrogen are neglible, but rise after one week due to the deposition of proteins present in the media. On horse serum treated samples (parylene-C and SiO2), nitrogen presence peaks after the overnight treatment, decreases slightly during the first week and stabilizes during the second and third weeks. Three dots represent statistical significance of P≤0.001.