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Table 1
Physical properties of liposomes
Liposome formulation	Mean particle diameter	Zeta potential	DOX-Encapsulation efficiency	Amount of Gd(III)
(molar ratio of lipids)	Mean particle diameter	Zeta potential	DOX-Encapsulation efficiency	Amount of Gd(III)
(molar ratio of lipids)	(nm)	(mV)	(%)	(mM)
GdSL1	157.1 ± 8.9	−27.6 ± 4.2	46.6 ± 12.7	4.60 ± 0.16
Gd(III)-DOTA-DSPE/CHOL/DSPE-mPEG2000 = 31:15:4)	157.1 ± 8.9	−27.6 ± 4.2	46.6 ± 12.7	4.60 ± 0.16
GdSL2	156.4 ± 5.1	−21.9 ± 1.0	41.7 ± 9.7	3.17 ± 0.01
Gd(III)-DOTA-DSPE/CHOL/DSPE-mPEG2000/DSPE = 20:15:4:11)	156.4 ± 5.1	−21.9 ± 1.0	41.7 ± 9.7	3.17 ± 0.01
GdSL3	131.4 ± 9.1	−31.6 ± 7.2	62.9 ± 1.5	2.01 ± 0.31
Gd(III)-DOTA-DSPE/CHOL/DSPE-mPEG2000/DSPE = 10:15:4:21)	131.4 ± 9.1	−31.6 ± 7.2	62.9 ± 1.5	2.01 ± 0.31
SL	129.1 ± 6.6	−31.9 ± 2.3	97.5 ± 0.4	ND
(CHOL/DSPE-mPEG2000/DSPE = 15:4:31)

ND, not detected (amount of Gd(III) could not be measured because there is no Gd(III)).

Jung et al. Nanoscale Research Letters 2012 7:462 doi:10.1186/1556-276X-7-462

Table 1