The values of the fluorescence increase inside the coacervates (%Icoacervates) of ThT, RhB, and CV were measured by preparing coacervates of pep2 (5 mM) in acetate buffer (pH 4.8, 25 mM, 0.3 M NaCl) with the dyes (5 mg/L). The %Icoacervates values for the four peptides were measured using samples containing RhB (5 mg/L) in phosphate buffer (pH 7.4, 25 mM, 0.3 M NaCl). The %Icoacervates values at different pH values were measured using samples containing pep1 (5 mM) and RhB (5 mg/L) in the desired buffer (acetate at pH 4.8, phosphate at pH 7.4, or carbonate at pH 10.5, 25 mM, 0.3 M NaCl). The %Icoacervates values were calculated according to the equation: %𝐼 𝑐𝑜𝑎𝑐𝑒𝑟𝑣𝑎𝑡𝑒𝑠 = 𝐼 𝑑𝑦𝑒+𝑝𝑒𝑝𝑡𝑖𝑑𝑒 -𝐼 𝑝𝑒𝑝𝑡𝑖𝑑𝑒 𝐼 𝑑𝑦𝑒 * 100%, where Idye+peptide is the maximum fluorescence intensity from the coacervates that contain the dye, Ipeptide and Idye are the maximum fluorescence intensity of a peptide or dye solutions at the same concentration. The experiments were performed in triplicate and the results were compared using one-way ANOVA test with Tukey-Kramer post hoc analysis.