Bimodal suspensions structure

Structure and Colloidal Properties of Extremely Bimodal Suspensions... 

The second part covers the structural aspects of different colloidal systems. Chapters 3 and 4, by Martin-Molina et al. and Haro-Pdrez et al., deal with electric double layers and effective interactions. Chapters 5 and 6, by Delgado et al. and Martinez-Pedrero et al., explore the structure of extremely bimodal suspensions and fllaments made up of miaosized magnetic particles. Chapters 7 and 8, by Puertas and Fuchs, and Hynninen et al., analyze the role played by the attractive interactions, confinement, and external fields on the structure of colloidal systems. Chapters 9 and 10, by Tromp and Maldonado-Valderrama et al., cover some structural aspects in food emulsions. This second part of the book finishes with Chapter 11, by de Vicente, which analyzes the rheological properties of structured fluids in order to establish a connection between measured material rheological functions and structural properties. 

Unilamellar vesicles are usually formed from lipid dispersions with sonication. Thus the suspension is metastablc, and vesicles aggregate to form a multilamellar structure. The decay time of sonicated phosphatidylcholine vesicles, as measured by DLS, showed a bimodal distribution 50. The hydrodynamic radius estimated from the smaller decay time was consistent with the values obtained by other experimental techniques such as ultracentrifugation. 

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