“…An intriguing observation is the large fractions of lysine (K) and glutamic acid (E) residuals on the human protein surface, which possess robust water‐binding capabilities but weak binding with surrounding amino acids. [ 23 , 24 ] The pseudo zwitterionic polypeptide material, synthesized through alternating copolymerization of glutamic acid and lysine or aspartic acid and lysine, [ 25 , 26 , 27 , 28 , 29 ] has demonstrated enzymatic degradability while retaining its inherent zwitterionic characteristics to resist nonspecific protein adsorption. [ 17 , 26 , 30 , 31 , 32 , 33 ] Furthermore, the degradation products consist of naturally occurring amino acids that can undergo metabolic processes within the natural protein metabolic pathway.…”