Magnetic Liquids for Lab-on-a-chip and Rapid Diagnostics Applications

H. Köser
Yale University

In this presentation we outline our recent work on Magnetic Liquids, and the great number of application areas these are used.

Ferrofluids are nanometer sized magnetic particles, covered by a surfactant, suspended in a carrier medium compatible with the surfactant material. Ferrofluids are applicable to a great and ever increasing number of application areas, such as:

• Liquid Seals and Bearings in Rotating Machinery (e.g in almost all disk drives, silicon crystal- growing furnaces), • Heat Pipes in Loudspeakers, • Inertial Dampers in Shock Absorbers, Stepper Motors etc, • Targeted Drug delivery,

and many more.

In this presentation we, as a special case study, present some recent initial results from the simulations of a Water-Based Ferrofluid. Numerical simulations were perfomed with COMSOL Multiphysics, which is a great tool for multidisciplinary multiphysics simulations

Keynote speaker's biography: Hur Köser is an assistant professor at Yale University.

Dr. Köser obtained double B.S. degrees in Electrical Engineering and Physics from the Massachusetts Institute of Technology (MIT) and an M.Eng. for his work on magnetic random access memory devices at IBM T. J. Watson Research Laboratory. He stayed at MIT’s Electrical Engineering Department to earn a Ph.D. in the field of Microsystems (2002). After completing post doctoral work in microfluidics at the Research Laboratory of Electronics at MIT, he joined the Electrical Engineering Department at Yale University as an Assistant Professor in 2003, where he currently conducts research in micro and nanotechnology applications to biomedical engineering and power devices.

Dr. Koser has recently received the NSF Career Award for his work on ferrofluid dynamics and will be on a prestigious Junior Faculty Fellowship (awarded by Yale University) during the next academic year to expand his work on ferrofluids. He is also the recipient of the 2003 Yale Information Technology Systems (ITS) Instructional Innovation Award and the Moore Award for the development of a microfluidics-based teaching laboratory.

Hur Köser was one of the keynote speakers at the COMSOL User's Conference, fall 2006 in Boston.