Paramagnetic liposomes: inner versus outer membrane relaxivity of DPPC liposomes incorporating lipophilic gadolinium complexes |
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| Authors: | Laurent Sophie Elst Luce Vander Thirifays Coralie Muller Robert N |
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| Affiliation: | Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons-Hainaut, Mons, Belgium. |
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| Abstract: | ![]()
Proton relaxometric properties of unilamellar DPPC liposomes embedding an amphiphilic paramagnetic chelate (Gd-DTPA-BC(14)A) in both layers of the phospholipid membrane or only in the external one are compared. The results show that the membrane's water permeability is able to quench the effect of the paramagnetic complexes located in the internal layer of DPPC liposomes, leading thus to an apparent lower global relaxivity. |
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