Control of Ferrofluid Droplets in Microchannels by Uniform Magnetic Fields

Vijaykumar B. Varma; Ayan Ray; Zhaomeng Wang; Zhiping Wang; Ruige Wu; P. J. Jayaneel; Natteri Mangadu Sudharsan; Raju V. Ramanujan

doi:10.1109/LMAG.2016.2594165

Control of Ferrofluid Droplets in Microchannels by Uniform Magnetic Fields

Vijaykumar B. Varma, Ayan Ray, Zhaomeng Wang, Zhiping Wang, Ruige Wu, P. J. Jayaneel, Natteri Mangadu Sudharsan, Raju V. Ramanujan^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

Magnetic droplets are versatile tools for a range of lab-on-a-chip (LoC) applications. The combination of a uniform magnetic field and magnetic droplet offers wireless and programmable manipulation. We performed LoC experiments and numerical studies on ferrofluid droplets under the influence of a uniform magnetic field. The dynamic behavior of flowing ferrofluid droplets was examined. The droplet size, shape, interdroplet spacing and velocity could be controlled by tuning the magnetic susceptibility of the ferrofluid, the viscosity of the carrier medium, and the flow rates. Our droplet-based micromagnetofluidic numerical model is in good agreement with our experiments. These studies are useful for magnetic droplet control and mixing in a LoC using a uniform magnetic field.

Original language	English
Article number	7523227
Journal	IEEE Magnetics Letters
Volume	7
DOIs	https://doi.org/10.1109/LMAG.2016.2594165
Publication status	Published - 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2010-2012 IEEE.

ASJC Scopus Subject Areas

Electronic, Optical and Magnetic Materials

Keywords

droplet micromagnetofluidics
ferrofluid droplets
lab-on-a-chip
Magnetochemistry

Access to Document

10.1109/LMAG.2016.2594165

Cite this

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abstract = "Magnetic droplets are versatile tools for a range of lab-on-a-chip (LoC) applications. The combination of a uniform magnetic field and magnetic droplet offers wireless and programmable manipulation. We performed LoC experiments and numerical studies on ferrofluid droplets under the influence of a uniform magnetic field. The dynamic behavior of flowing ferrofluid droplets was examined. The droplet size, shape, interdroplet spacing and velocity could be controlled by tuning the magnetic susceptibility of the ferrofluid, the viscosity of the carrier medium, and the flow rates. Our droplet-based micromagnetofluidic numerical model is in good agreement with our experiments. These studies are useful for magnetic droplet control and mixing in a LoC using a uniform magnetic field.",

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AU - Wu, Ruige

AU - Jayaneel, P. J.

AU - Sudharsan, Natteri Mangadu

AU - Ramanujan, Raju V.

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AB - Magnetic droplets are versatile tools for a range of lab-on-a-chip (LoC) applications. The combination of a uniform magnetic field and magnetic droplet offers wireless and programmable manipulation. We performed LoC experiments and numerical studies on ferrofluid droplets under the influence of a uniform magnetic field. The dynamic behavior of flowing ferrofluid droplets was examined. The droplet size, shape, interdroplet spacing and velocity could be controlled by tuning the magnetic susceptibility of the ferrofluid, the viscosity of the carrier medium, and the flow rates. Our droplet-based micromagnetofluidic numerical model is in good agreement with our experiments. These studies are useful for magnetic droplet control and mixing in a LoC using a uniform magnetic field.

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Control of Ferrofluid Droplets in Microchannels by Uniform Magnetic Fields

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

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