Abstract
We study the nondiffusive Brownian motion of both rigid and deformable mesoscopic particles by cross-correlated dynamic light scattering with microsecond temporal resolution. Whereas rigid particles show the classical long-time tail prediction, the transition to diffusive motion of deformable particles presents a striking behavior not explained by the existing hydrodynamic treatments. This observation can be interpreted in terms of a damped oscillatory deformational motion on time scales of the order of the Brownian time. Finally, we show that the nondiffusive Brownian motion depends on the specific flexibility of the particles. © 2009 The American Physical Society.
Original language | English |
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Article number | 021403 |
Journal | Physical Review E - Statistical, Nonlinear, and Soft Matter Physics |
Volume | 80 |
Issue number | 2 |
DOIs | |
Publication status | Published - 18 Aug 2009 |