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. Author manuscript; available in PMC: 2013 Jun 1.
Published in final edited form as: Eur J Med Chem. 2012 Mar 16;52:159–172. doi: 10.1016/j.ejmech.2012.03.013

Fig. 2.

Fig. 2

Acidic pH-triggered aggregation of ortho ester-based lipoplexes (N/P = 5/1). The hydrodynamic diameter of the Type I (A-D) and Type II (E to H) ortho ester-based lipoplexes was measured by dynamic light scattering after incubation at pHs 5.0 (A and E), 5.5 (B and F), 6.0 (C and G) and 7.4 (D and H).