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. Author manuscript; available in PMC: 2012 Jul 15.
Published in final edited form as: J Control Release. 2011 Feb 20;153(1):23–33. doi: 10.1016/j.jconrel.2011.02.016

Figure 2.

Figure 2

Equilibrated configurations (A) F2-2, (B) F3, (C) F4-2, and (D) PEI interacting with DsiRNA. Nucleic acids are represented as black ribbons and surface amines that carry a +1 charge are represented as spheres. Water molecules and counter ions are omitted for clarity.