Skip to main content
. 2015 Dec 1;109(11):2295–2306. doi: 10.1016/j.bpj.2015.10.022

Figure 4.

Figure 4

ATR-FTIR spectroscopy of surfactant preparations. (A) Thermotropic behavior of NS membranes (open circles), membranes reconstituted from its OE (solid circles), and secreted LBPs (solid triangles), as sensed by the wavenumber shift of the CH2 asymmetric stretching IR bands. (B and C) ATR-FTIR spectra of NS (—), OE (·····), and LBPs (- - -) membranes at spectral regions sensitive to the CH2 asymmetric strechting band (B) or to the CH2 bending band (C). Numbers indicate the wavenumber at the maximum of each peak to highlight the shift between the different surfactant materials. Data shown in (A) are means ± standard deviation from three independent experiments.