Highly efficient capture and long-term encapsulation of dye by catanionic surfactant vesicles

Vesicles formed from the cationic surfactant, cetyltrimethylammonium tosylate (CTAT) and the anionic surfactant, sodium dodecylbenzenesulfonate (SDBS), were used to sequester the anionic dye carboxyfluorescein. Carboxyfluorescein was efficiently sequestered in CTAT-rich vesicles via two mechanisms:...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1985. - 22(2006), 15 vom: 18. Juli, Seite 6461-4
1. Verfasser: Wang, Xiang (VerfasserIn)
Weitere Verfasser: Danoff, Emily J, Sinkov, Nikolai A, Lee, Jae-Ho, Raghavan, Srinivasa R, English, Douglas S
Format: Aufsatz
Sprache:English
Veröffentlicht: 2006
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Benzenesulfonates Cations Cetrimonium Compounds Fluoresceins Surface-Active Agents trimethylcetylammonium p-toluenesulfonate 1P489GK6AR mehr... 6-carboxyfluorescein 3301-79-9 dodecylbenzenesulfonic acid 60NSK897G9
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245 1 0 |a Highly efficient capture and long-term encapsulation of dye by catanionic surfactant vesicles 
264 1 |c 2006 
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500 |a Date Revised 15.11.2012 
500 |a published: Print 
500 |a Citation Status MEDLINE 
520 |a Vesicles formed from the cationic surfactant, cetyltrimethylammonium tosylate (CTAT) and the anionic surfactant, sodium dodecylbenzenesulfonate (SDBS), were used to sequester the anionic dye carboxyfluorescein. Carboxyfluorescein was efficiently sequestered in CTAT-rich vesicles via two mechanisms: encapsulation in the inner water pool and electrostatic adsorption to the charged bilayer. The apparent encapsulation efficiency (22%) includes both encapsulated and adsorbed fractions. Entrapment of carboxyfluorescein by SDBS-rich vesicles was not observed. Results show the permeability of the catanionic membrane is an order of magnitude lower than that of phosphatidylcholine vesicles and the loading capacity is more than 10 times greater 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
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700 1 |a Danoff, Emily J  |e verfasserin  |4 aut 
700 1 |a Sinkov, Nikolai A  |e verfasserin  |4 aut 
700 1 |a Lee, Jae-Ho  |e verfasserin  |4 aut 
700 1 |a Raghavan, Srinivasa R  |e verfasserin  |4 aut 
700 1 |a English, Douglas S  |e verfasserin  |4 aut 
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