doi: 10.1016/0730-725x(91)90425-l.
Gadolinium-labeled liposomes containing amphiphilic Gd-DTPA derivatives of varying chain length: targeted MRI contrast enhancement agents for the liver
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- PMID: 1881256
- DOI: 10.1016/0730-725x(91)90425-l
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Gadolinium-labeled liposomes containing amphiphilic Gd-DTPA derivatives of varying chain length: targeted MRI contrast enhancement agents for the liver
Magn Reson Imaging.
1991.
Abstract
Paramagnetic liposomal contrast agents were synthesized and utilized for selective augmentation of T1 MR imaging of the livers of normal Balb/c mice. Amphiphilic gadolinium complexes, which mimic phospholipids, were incorporated into the lamella of small unilamellar liposomes (SUV) such that they become an integral part of its surface. The amphiphilic complexing agents consisted of DTPA reagents in which a pair of alkyl chains of varying lengths are attached via amide linkages. The in vivo lifetimes of the amphiphilic agents were found to be dependent on the chain length of the alkyl groups.
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