Document Type

Article

Publication Date

5-15-2003

Journal or Book Title

Journal of Applied Physics

Volume

93

Issue

10

First Page

7459

Last Page

7461

DOI

10.1063/1.1557361

Abstract

The use of miniature electromagnets for ferrofluid-actuated liquid dispensing into microfluidic channels has been investigated by numerical simulations using the finite element method and measurements of fluid displacement and flow rate. The simulations illustrate the effect of structural and geometrical parameters of single and paired solenoid coils on the magnetic force experienced by the ferrofluid. Dual solenoids were used for extended fluid displacement. Ferrofluid positioning and flow rates were controlled also by using a solenoid with an iron core. The experimental measurements of fluidflow in capillaries were used to validate the modeling calculations. The results can be used as a basis for the development of on-chip ferrofluid-based devices integrated with microfluidic architectures.

Comments

The following article is from Journal of Applied Physics 93 (2003): 7459 and may be found at http://dx.doi.org/10.1063/1.1557361.

Rights

Copyright 2003 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Copyright Owner

American Institute of Physics

Language

en

File Format

application/pdf

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