Evaluation of the interaction of propranolol with 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) liposomes : the partitioning model

The sorption behavior of the amine containing beta-receptor blocking agent propranolol (Ppn) in 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) vesicles was investigated. Both protonated and unprotonated Ppn were measured in the continuous phase after removal of the vesicles containing sorbed Ppn...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 23(2007), 4 vom: 13. Feb., Seite 1959-64
1. Verfasser: Cocquyt, Jan (VerfasserIn)
Weitere Verfasser: Saveyn, Pieter, Van der Meeren, Paul, De Cuyper, Marcel
Format: Aufsatz
Sprache:English
Veröffentlicht: 2007
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Liposomes Propranolol 9Y8NXQ24VQ Dimyristoylphosphatidylcholine U86ZGC74V5
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245 1 0 |a Evaluation of the interaction of propranolol with 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) liposomes  |b the partitioning model 
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520 |a The sorption behavior of the amine containing beta-receptor blocking agent propranolol (Ppn) in 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) vesicles was investigated. Both protonated and unprotonated Ppn were measured in the continuous phase after removal of the vesicles containing sorbed Ppn by centrifugation. In contrast, by analyzing the surface charge density, deduced from electrophoretic mobility measurements, only the sorbed protonated Ppn was determined. A partitioning model was used to describe the sorption behavior. Sensitivity analysis revealed that sufficiently reliable and independent parameters were obtained. The partition coefficient of the unprotonated Ppn was about 22 times higher than that of the protonated analogue. Statistical analysis revealed a significant increase in the intrinsic partition coefficients of both Ppn analogues with an increase in the salt concentration 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
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650 7 |a Propranolol  |2 NLM 
650 7 |a 9Y8NXQ24VQ  |2 NLM 
650 7 |a Dimyristoylphosphatidylcholine  |2 NLM 
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700 1 |a Saveyn, Pieter  |e verfasserin  |4 aut 
700 1 |a Van der Meeren, Paul  |e verfasserin  |4 aut 
700 1 |a De Cuyper, Marcel  |e verfasserin  |4 aut 
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