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Bioactivity vs. percent helicity for adsorbed HEWL on (a) glass, (b) HDPE, and (c) PMMA for 17 h exposure time period. Three separate correlation lines given in (c) represent the correlation between bioactivity and percent helical structure of lysozyme for percent helicity < 35%, > 35%, and overall. (N=3; averaged 95% C.I. values of ±4% for helicity and ±9% for bioactivity.)
