Journal
BIOORGANIC & MEDICINAL CHEMISTRY
Volume 15, Issue 9, Pages 3176-3186Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmc.2007.02.037
Keywords
liposome/DNA complexes; neutral amphiphilic lipid; surface charge shielding; inhibition of nonspecific interactions; blood circulation time enhancement; synthesis; physical chemistry; biological properties
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The preparation, physicochemical and biological properties of amphiphilic polyether branched molecules is described. These 'bunch shaped' molecules when inserted into cationic liposomes/DNA complexes have shown efficient surface charge shielding. As a consequence they efficiently inhibited the non specific interactions with blood components and significantly enhanced circulation time of the particles in the blood track. Formulations containing these molecules compared positively with those containing PEG lipids, providing a 5-fold increase in circulation time. (c) 2007 Elsevier Ltd. All rights reserved.
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