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. Author manuscript; available in PMC: 2013 Jan 31.
Published in final edited form as: Langmuir. 2011 Dec 15;28(4):2113–2121. doi: 10.1021/la203823t

Figure 4.

Figure 4

SFG spectra of fibrinogen adsorbed to (a) a polyurethane, (b) a polyurethane-silicone copolymer and (c) a fluorinated polymer in PBS buffer in the amide I range collected at different times (in minutes). Alpha-helix SFG signal as a function of time (d) from fitting SFG spectra for fibrinogen adsorbed to the polyurethane (open circles), the polyurethane-silicone copolymer (closed circles) and the fluorinated polymer (closed triangles). Representative error is shown for the fibrinogen/polyurethane sample (Reproduced with permission from J. Phys. Chem. B 2005, 109, 22027–22035. Copyright 2005, Am. Chem. Soc.).