Dipolophoresis and Travelling-Wave Dipolophoresis of Metal Microparticles

Autor:	Jose Eladio Flores-Mena, Pablo García-Sánchez, Antonio Ramos
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	electrokinetics dipolophoresis dielectrophoresis induced-charge electrophoresis nanowires Mechanical engineering and machinery TJ1-1570
Zdroj:	Micromachines, Vol 11, Iss 3, p 259 (2020)
Druh dokumentu:	article
ISSN:	2072-666X 11030259
DOI:	10.3390/mi11030259
Popis:	We study theoretically and numerically the electrokinetic behavior of metal microparticles immersed in aqueous electrolytes. We consider small particles subjected to non-homogeneous ac electric fields and we describe their motion as arising from the combination of electrical forces (dielectrophoresis) and the electroosmotic flows on the particle surface (induced-charge electrophoresis). The net particle motion is known as dipolophoresis. We also study the particle motion induced by travelling electric fields. We find analytical expressions for the dielectrophoresis and induced-charge electrophoresis of metal spheres and we compare them with numerical solutions. This validates our numerical method, which we also use to study the dipolophoresis of metal cylinders.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/14daa51803ed492485a8572e64f3e3c3 Zobrazit plný text záznamu View record in DOAJ