Figure 1
From: Engineering biodegradable and multifunctional peptide-based polymers for gene delivery
Schematic of peptide-functionalized HPMA copolymers. (A) Random-statistical copolymers of HPMA (red) and pendant bioactive peptides (green) with a linker (blue) between the hydrophilic backbone and the main peptide sequence. (B) Random-statistical copolymers of HPMA and multiple pendant peptides (cationic peptide in green; second bioactive peptide in purple). (C) Diblock copolymer of HPMA and multiple pendant peptides, where the cationic peptide is on one block, and a second bioactive peptide on a different block.