title: Dielectrophoretic mobility determination in DC insulator-based dielectrophoresis.
abstract: Insulator-based dielectrophoresis (iDEP) is a powerful tool for separating and characterizing particles, yet it is limited by a lack of quantitative characterizations. Here, this limitation is addressed by employing a method capable of quantifying the DEP mobility of particles. Using streak-based velocimetry the particle properties are deduced from their motion in a microfluidic channel with a constant electric field gradient. From this approach, the DEP mobility of 1 μm polystyrene particles was found to be -2±0.4 10(-8)  cm4 /(V2  s). In the future, such quantitative treatment will allow for the elucidation of unique insights and rational design of devices.
authors.affiliation: Department of Chemistry and Biochemistry, Arizona State University, Tempe 85287-1604, USA.
authors.forename: Noah G
authors.initials: NG
authors.lastname: Weiss
authors.forename: Paul V
authors.initials: PV
authors.lastname: Jones
authors.forename: Prasun
authors.initials: P
authors.lastname: Mahanti
authors.forename: Kang P
authors.initials: KP
authors.lastname: Chen
authors.forename: Thomas J
authors.initials: TJ
authors.lastname: Taylor
authors.forename: Mark A
authors.initials: MA
authors.lastname: Hayes
mesh_terms: D003198:Computer Simulation; D004586:Electrophoresis / Q000295:instrumentation* / Q000379:methods*; D004867:Equipment Design; D016014:Linear Models; D046210:Microfluidic Analytical Techniques / Q000295:instrumentation* / Q000379:methods*; D008863:Microspheres; D012212:Rheology