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. Author manuscript; available in PMC: 2012 Jun 20.
Published in final edited form as: Adv Mater. 2010 Aug 24;22(32):3593–3597. doi: 10.1002/adma.201000307

Figure 2.

Figure 2

a) Particle zeta-potentials measured pre- (−) and post-modification (+) with a nona-arginine CPP. b) Degradation of particles at pH 7.4 (closed symbols) and pH 5 (open symbols), determined by analysis of released soluble dextran. Data for 30% PBAE-PA blends were nearly identical to their 30% PBAE blend counterparts and were omitted for clarity (see Figure S5a in the Supporting Information). c) Release of plasmid from f-Ac-DEX particles incubated at pH 7.4 or pH 5. Plasmid release profiles for additional particle formulations can be found in Figure S5b in the Supporting Information.