Table 1. Structural Parameters from Cryo-TEM and SANS^a.

	cryo-TEM		SANS
samples	0 wt % d-C18-d-PEO4	1 wt % d-C18-PEO4	0 wt % d-C18-PEO4	1 wt % d-C18-PEO4
N	1	∼3	1	2
Rp (nm)	51 ± 3	52 ± 4	54 ± 2	59 ± 2
Rc (nm)	47 ± 2	28 ± 1	51 ± 2	37 ± 2
tw (nm)	NAc	15 ± 1	NAc	15 ± 1
Ts (nm)	NAb	NAb	3.6 ± 0.1	3.4 ± 0.2
Rp polydispersity (%)	30 ± 7	34 ± 9	30 ± 2	40 ± 2
Rc polydispersity (%)	30 ± 6	52 ± 5	30 ± 2	40 ± 2
tw polydispersity (%)	NAc	23 ± 3	NAc	41 ± 4

^aNumber of layers (N), outer perimeter radius of the vesicle (R_p), water core radius (R_c), intermembrane water thickness (t_w), bilayer thickness (t_s), and corresponding size polydispersity.

^bNot visible in TEM images.

^cNot applicable to ULVs.