Fig. 2: Representative optical micrographs of GY23 variant coacervates.

a, d GY23, b, e GY23-9F/A, and c, f GY23-7A/F peptide coacervates (5 mg/mL) in pH 8.0 buffer with 0.1 M and 1 M of ionic strength fixed by NaCl. The black arrows in b and d highlight the few gel-like particles or coacervates formed by GY23-9F/A.