title: Dielectric characterization of bacterial cells using dielectrophoresis.
abstract: Measurements of dielectrophoretic collection spectra of Escherichia coli and Staphylococcus aureus suspensions are used for obtaining dielectric characteristics of both types of bacteria. The experiments are interpreted using a numerical method that models the cells as compartmented spherical or rod-like particles. We show the usefulness of this simple method to extract significant information about the electrical properties of Gram-negative and -positive bacteria.
authors.affiliation: Departamento de Física Aplicada III, Facultad de Ciencias Físicas, Universidad Complutense de Madrid, Madrid, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Sanchis
authors.forename: A P
authors.initials: AP
authors.lastname: Brown
authors.forename: M
authors.initials: M
authors.lastname: Sancho
authors.forename: G
authors.initials: G
authors.lastname: Martínez
authors.forename: J L
authors.initials: JL
authors.lastname: Sebastián
authors.forename: S
authors.initials: S
authors.lastname: Muñoz
authors.forename: J M
authors.initials: JM
authors.lastname: Miranda
mesh_terms: D004553:Electric Conductivity; D004586:Electrophoresis / Q000379:methods*; D004926:Escherichia coli / Q000302:isolation & purification* / Q000502:physiology; D008839:Microelectrodes; D008954:Models, Biological; D013211:Staphylococcus aureus / Q000302:isolation & purification* / Q000502:physiology