par de Buyl, Pierre 
;Mikhailov, Alexander;Kapral, Raymond
Référence Europhysics letters, 103, page (60009)
Publication Publié, 2013-10-17
;Mikhailov, Alexander;Kapral, Raymond Référence Europhysics letters, 103, page (60009)
Publication Publié, 2013-10-17
Article révisé par les pairs
| Résumé : | In addition to self-propulsion by phoretic mechanisms that arises from an asymmetric distribution of reactive species around a catalytic motor, spherical particles with a uniform distribution of catalytic activity may also propel themselves under suitable conditions. Reactive fluctuation-induced asymmetry can give rise to transient concentration gradients which may persist under certain conditions, giving rise to a bifurcation to self-propulsion. The nature of this phenomenon is analyzed in detail, and particle-level simulations are carried out to demonstrate its existence. © Copyright EPLA, 2013. |
