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. Author manuscript; available in PMC: 2021 Oct 1.
Published in final edited form as: Expert Opin Drug Deliv. 2020 Jul 31;17(10):1395–1410. doi: 10.1080/17425247.2020.1796628

Figure 1.

Figure 1.

Nucleic acids must overcome numerous hurdles for successful transfection by polymers like PBAEs (1). The cargo must be encapsulated and compacted into nanoparticles (2); the nanoparticles are internalized into the cells (3); the nanoparticles must escape the endosome (4); and the nucleic acid must be released and trafficked to the correct cellular compartment (5–6).