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. Author manuscript; available in PMC: 2015 Nov 13.
Published in final edited form as: Environ Sci Technol. 2015 Aug 12;49(17):10642–10650. doi: 10.1021/acs.est.5b01841

Figure 3.

Figure 3

(a) Hydrodynamic diameters and (b) electrophoretic mobilities of unilamellar vesicles composed of POPC or POPC and the indicated mole percent of either smooth LPS (sLPS) or rough LPS (rLPS). Apparent ζ potentials derived from these electrophoretic mobility measurements are presented in Figure S7. All values were measured at a vesicle concentration of 10 μg·mL−1 in a 0.002 M HEPES (pH 7.4), 0.001 M NaCl solution. Error bars represent one standard deviation (n = 5). (c) Content of 2-keto-3-deoxy-D-manno-octonate (Kdo) in the POPC/LPS vesicles as a function of mass percent LPS addition (used to estimate mol % LPS in vesicles). Each smooth LPS molecule contains three Kdo residues while each rough LPS molecule contains two Kdo residues.45,46 Error bars represent one standard deviation (n = 3). Values labeled with different letters differ significantly from each other (p < 0.05).