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Fig. 6. Fluorescence emission response of POPC/cholesterol (Chol) mixed monolayers containing B7-PC. A–C: Fluorescence emission spectra of POPC/Chol (2:1) monolayers containing B7-PC mixed at mole fractions of 0.001 (A), 0.01 (B), and 0.1 (C) at surface pressures of 5 mN/m (lines lacking symbols), 15 mN/m (lines marked by squares), 25 mN/m (lines marked by triangles), and 40 mN/m (lines marked by circles). D: Emission wavelength maximum as a function of B7-PC surface concentration in POPC and POPC/Chol (2:1) monolayers. B7-PC mole fractions of 0.01 (filled symbols) and 0.1 (unfilled symbols) mixed with either POPC (circles) or POPC/Chol (2:1) (triangles) are shown at surface pressures of 5, 15, 25, and 40 mN/m,with the highest surface pressure corresponding to the highest wavelength maximum.
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