Table 1.

Compositions, hydrodynamic sizes and zeta potentials of Gd-liposomes with oligoethylene glycol shielding (A, B, C), stealth lipid shielding (D) and without PEG shielding (E, F, G).

Liposome	DOPE	Gd-lipid	PEG-lipid	DOTMA	FL-DHPE	DLS (PDI)	Zeta
A	9%	30% Gd-DEG1SL	50% DODEG4	10%	1%	96.8 nm (0.2)	(+) 62 mV
B	9%	30% Gd-DEG3SL	50% DODEG4	10%	1%	92.9 nm (0.2)	(+) 56 mV
C	9%	30% Gd-DEG6SL	50% DODEG4	10%	1%	177 nm (0.2)	(+) 56 mV
D	2%	30% Gd-DEG3SL	7% DSPE-PEG2000	60%	1%	146 nm (0.3)	(+) 45 mV
E	9%	30% Gd-DEG1SL	–	60%	1%	212.9 nm (0.3)	(+) 55 mV
F	9%	30% Gd-DEG3SL	–	60%	1%	220.8 nm (0.4)	(+) 53 mV
G	9%	30% Gd-DEG6SL	–	60%	1%	244.4 nm (0.3)	(+) 44 mV