Samad, M. B., Maddeboina, K., Rodrigues de Almeida, N., Conda-Sheridan, M. Facile Protocol for the Synthesis of Self-assembling Polyamine-based Peptide Amphiphiles (PPAs) and Related Biomaterials. J. Vis. Exp. (136), e57908, doi:10.3791/57908 (2018).