title: Speeding chemical reactions by focusing.
abstract: We present numerical results for a chemical reaction of colloidal particles which are transported by a laminar fluid and are focused by periodic obstacles in such a way that the two components are well mixed and consequently the chemical reaction is speeded up. The roles of the various system parameters (diffusion coefficients, reaction rate, and obstacles sizes) are studied. We show that focusing speeds up the reaction from the diffusion limited rate ∼t(-1/2) to very close to the perfect mixing rate, ∼t(-1).
authors: Departament de Física Aplicada, Universitat Politècnica de Catalunya, Avinguda Doctor Marañón 44, E-08028 Barcelona, Spain.
authors: A M
authors: AM
authors: Lacasta
authors: Departament de Física Aplicada, Universitat Politècnica de Catalunya, Avinguda Doctor Marañón 44, E-08028 Barcelona, Spain.
authors: L
authors: L
authors: Ramírez-Piscina
authors: Departament d'Estructura i Constituents de la Matèria, Facultat de Física, Universitat de Barcelona, Carrer Martí i Franqués 1, E-08028 Barcelona, Spain.
authors: J M
authors: JM
authors: Sancho
authors: Department of Chemistry and Biochemistry and BioCircuits Institute, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0340, USA.
authors: K
authors: K
authors: Lindenberg