Laser-scattering diagnostics of aggregating vesicles suspensions in shear flows: computer simulation and experimental study

Dmitri B. Berg; Alexander V. Priezzhev

doi:10.1117/12.387134

31 May 2000 Laser-scattering diagnostics of aggregating vesicles suspensions in shear flows: computer simulation and experimental study

Dmitri B. Berg, Alexander V. Priezzhev

Author Affiliations +

Proceedings Volume 3923, Optical Diagnostics of Biological Fluids V; (2000) https://doi.org/10.1117/12.387134
Event: BiOS 2000 The International Symposium on Biomedical Optics, 2000, San Jose, CA, United States

Abstract

Aggregation and disaggregation processes of lipid vesicles in water suspension were studied by computer simulation and laser backscattering techniques. Diffusion-limited aggregation algorithm of simulation model was enhanced to reversible cluster growth. It was estimated that morphological structure of clusters is controlled by the ratio of secondary minimum depth of vesicles interaction potential and their kinetics energy. Shear flow in Couette chamber made it possible to induce aggregation/disaggregation of vesicles under the different values of their kinetic energy due to shear flow ratio shift. Characteristic times of stasis and shear flow induced aggregation kinetics were determined by laser backscattering. Computer simulation is in good agreement with experimental data.

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Dmitri B. Berg and Alexander V. Priezzhev "Laser-scattering diagnostics of aggregating vesicles suspensions in shear flows: computer simulation and experimental study", Proc. SPIE 3923, Optical Diagnostics of Biological Fluids V, (31 May 2000); https://doi.org/10.1117/12.387134

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