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. Author manuscript; available in PMC: 2011 Dec 28.
Published in final edited form as: Biochemistry. 2007 Jan 30;46(4):1042–1054. doi: 10.1021/bi061891b

FIGURE 9.

FIGURE 9

Representative attenuated total reflectance FTIR spectra of uniaxially oriented dry films of peptide-containing POPC bilayers. The C–H stretching and amide–A regions of the IR spectrum are shown in panel A, and the ester C=O stretching, amide I, and amide II regions are shown in panel B. In each panel, the top trace (A‖) shows absorbance spectra acquired with p-polarized infrared radiation and the bottom trace (A⊥) shows spectra obtained with s-polarized radiation. The spectra were obtained with LA6-containing POPC bilayers at a lipid/peptide molar ratio of 30/1.