Table 2.

T₁ values of aqueous liposomal suspensions containing or not Nanotex in decreasing concentrations.

Suspension type /dilution a)	T1 (ms) b)
	x1	x1/2	x1/4
Liposomes w/ nanoparticles	17.3 ± 0.0	34.2 ± 0.1	64.1 ± 0.1
Liposomes w/o nanoparticles	2161.7 ± 154.6	2207.3 ± 107.9	2955.0 ± 7.1

^a) The dilutions (v/v) of the liposomal preparations correspond to the original liposomal suspension (5.26 mM PtdCho, x1), 50% (x1/2) or 25% (x1/4). In the liposomal preparations containing Nanotex these dilutions correspond to iron concentrations of 0.5 mg Fe/mL, 0.25 mg Fe/mL and 0.125 mg Fe/mL.

^b) T₁ values were determined at 1.5 Tesla (22 °C, Bruker Minispec, Rheinstetten, DE) using the inversion recovery sequence.