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- DODAB abstract "Dioctadecyldimethylammonium bromide (DODAB) is a doublechained quaternary ammonium surfactant that forms unilamellar vesicles (ULVs) in water. Among various preparation methods, the ‘‘hot-water” method offers a simple procedure to prepare DODAB cationic vesicles by simply dissolving the DODAB in hot water above 50 °C, i.e., chain melting (main) transition, Tm.In general, the DSC thermograms of the unsonicated DODAB dispersions are dominated by two endotherms; the pre- (35–36 °C) and main transition (42.7–45 °C) peaks. Moreover, in literature reported the presence of a thirdendotherm (post transition) at 52.2 °C.The main transition (Tm) is ascribed to gel to liquid-crystalline phase transition in which the alkyl chains transform from solidlike to liquid-like state.The 10 mM DODAB is a critical concentration, below which the dispersions consist of large polydispersed unilamellar vesicles (ULVs) that exhibit a local (chain melting) transition at 43 °C, beyond which a structural transition occurs: ULVs --> MLVs (multilamellar vesicles) as indicated by the sudden increase in the dynamic moduli. However, above 10 mM DODAB, the dispersions are mostly formed by ULVs in coexistence with lamellar fragments resulting in a network that shows a rheogram similar to that of hexagonal liquid-crystalline phase.".
- DODAB wikiPageID "24208026".
- DODAB wikiPageRevisionID "545717480".
- DODAB hasPhotoCollection DODAB.
- DODAB subject Category:Ammonium_compounds.
- DODAB subject Category:Bromides.
- DODAB subject Category:Colloidal_chemistry.
- DODAB subject Category:Soft_matter.
- DODAB subject Category:Surfactants.
- DODAB type Abstraction100002137.
- DODAB type AmmoniumCompounds.
- DODAB type Bromide114785625.
- DODAB type Bromides.
- DODAB type Chemical114806838.
- DODAB type Cognition100023271.
- DODAB type Compound105870180.
- DODAB type Compound114818238.
- DODAB type Concept105835747.
- DODAB type Content105809192.
- DODAB type Halide114904359.
- DODAB type Idea105833840.
- DODAB type Material114580897.
- DODAB type Matter100020827.
- DODAB type Part113809207.
- DODAB type PhysicalEntity100001930.
- DODAB type PsychologicalFeature100023100.
- DODAB type Relation100031921.
- DODAB type Salt115010703.
- DODAB type Substance100019613.
- DODAB type Whole105869584.
- DODAB comment "Dioctadecyldimethylammonium bromide (DODAB) is a doublechained quaternary ammonium surfactant that forms unilamellar vesicles (ULVs) in water.".
- DODAB label "DODAB".
- DODAB label "DODAB".
- DODAB sameAs DODAB.
- DODAB sameAs m.07kd141.
- DODAB sameAs Q3700517.
- DODAB sameAs Q3700517.
- DODAB sameAs DODAB.
- DODAB wasDerivedFrom DODAB?oldid=545717480.
- DODAB isPrimaryTopicOf DODAB.