Fluorescence spectra (A) and fluorescence steady-state anisotropy, r (B) of BODIPY-FL-Aβ-Cys12, 0.45 μM in 20 mM Tris-HCl buffer, pH 7.4 (1 and 5, respectively) and with GM1 micelles containing 581/591-BODIPY-C5-GM1 (1 mol %), 1:20 mol/mol (2 and 6, respectively), 1:120 mol/mol (3 and 7, respectively), and 1:240 mol/mol (4 and 8, respectively). The excitation wavelength was 470 nm.