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Kinetics of vesicle formation and breakdown

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囊泡形成和破坏的动力学.pdf (833.7Kb)
Date
2007
Author
Zhou Wen-Ting
周文婷
Xu Xiao-Ming
徐晓明
Lan Qin
蓝琴
Han Guo-Bin
韩国彬
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  • 化学化工-已发表论文 [14469]
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Abstract
A combination of stopped-flow, transmission electron microscopy and dynamic light-scattering techniques has been used to study the kinetics of vesicle formation and breakdown as well as the mechanism of vesicle formation and breakdown in DTAB/SDS aqueous solutions. The results show that the process of vesicle formation can be modeled as a sequence of distinct processes: mixed micelles --> flexible stick-shaped aggregates --> non-equilibrium vesicles --> equilibrium vesicle system, and the evolution of particle dispersion degree appears to be a periodical change of "monodispersity --> polydispersity". In addition, the kinetic analysis shows that the process of vesicle formation lasts for a long time. However, the activation energy of vesicle formation is not too high, which implies that the control procedure of the process is independent of activation energy. In contrast to the process of vesicle formation, vesicle breakup to mixed micelles appears to be a rapid process.
Citation
ACTA CHIMICA SINICA,2007,65(20):2279-2284
URI
http://dx.doi.org/doi:CNKI:SUN:HXXB.0.2007-20-012
https://dspace.xmu.edu.cn/handle/2288/9256

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