Spontaneous vesicle formation and transforma- tion of vesicle to tubular microstructure have been observed in aqueous mixtures of tri-(n-dodecyl-dimethyl-hydroxy- propylammonium chloride) phosphate (PTA) and sodium de...Spontaneous vesicle formation and transforma- tion of vesicle to tubular microstructure have been observed in aqueous mixtures of tri-(n-dodecyl-dimethyl-hydroxy- propylammonium chloride) phosphate (PTA) and sodium dedecyl sulfate (SDS), which is supported by negative-stain- ing transmission electron microscopy (TEM), scan electron microscopy (SEM) and dynamic light scattering (DLS). Spherical vesicles aggregate to tubular microstructures with their diameters and lengths respectively of about 100 and 7000 nm in the freshly prepared sample at the molar ratio of PTA/SDS=3/7 and a total surfactant concentration of 0.01 mol/L. The diameter, the length and the quantity of tubular structures all increase with the increase of the total concen- tration of surfactant and the sample aging.展开更多
基金This work was supported by the National Natural Science Foundation of China(Grant Nos.20073025 and 20373035)Specialized Research Fund for the Doctoral Program of Higher Educa-tion(Grant No.20020422060)Excellent Middle,Young Scientists Awarding Found of Shandong Province(Grant No.01BS21).
基金supported by the National Natural Science Foundation of China(Grant Nos.20473034,30370945,2003CCA02900)the Foundation of Guizhou Province(Grant No.2001-6).
文摘Spontaneous vesicle formation and transforma- tion of vesicle to tubular microstructure have been observed in aqueous mixtures of tri-(n-dodecyl-dimethyl-hydroxy- propylammonium chloride) phosphate (PTA) and sodium dedecyl sulfate (SDS), which is supported by negative-stain- ing transmission electron microscopy (TEM), scan electron microscopy (SEM) and dynamic light scattering (DLS). Spherical vesicles aggregate to tubular microstructures with their diameters and lengths respectively of about 100 and 7000 nm in the freshly prepared sample at the molar ratio of PTA/SDS=3/7 and a total surfactant concentration of 0.01 mol/L. The diameter, the length and the quantity of tubular structures all increase with the increase of the total concen- tration of surfactant and the sample aging.
