Nondiffusive Brownian motion of deformable particles: Breakdown of the "long-time tail"

Sándalo Roldán-Vargas, Miguel Peláez-Fernández, Ramon Barnadas-Rodríguez, Manuel Quesada-Pérez, Joan Estelrich, José Callejas-Fernández

Research output: Contribution to journalArticleResearch

4 Citations (Scopus)


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 languageEnglish
Article number021403
Pages (from-to)1-4
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Issue number2
Publication statusPublished - 18 Aug 2009


Dive into the research topics of 'Nondiffusive Brownian motion of deformable particles: Breakdown of the "long-time tail"'. Together they form a unique fingerprint.

Cite this