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. Author manuscript; available in PMC: 2014 Jun 1.
Published in final edited form as: Pharm Res. 2013 Feb 6;30(6):1597–1607. doi: 10.1007/s11095-013-0998-3

Figure 4.

Figure 4

Zeta potentials of 0%, 5%, and 10% PEG-PE liposomes. The absolute value of zeta potential decreased with increasing PEG-PE content at each given size, indicating the shielding effect of DCP, an anionic surfactant included in the liposomes, by the PEG molecules on the exterior of the liposomes.