Benjamin B. Yellen
The guiding principle of Dr. Yellen’s work is to investigate applications of electriciy and magnetism in medicine, energy, and the environment. One research focus is designing magnetic implants for drug delivery and medical imaging. Another research focus is developing nanoscale magnetic manipulation and tracking technology to observe the motion of colloidal particles immersed in ferrofluid (e.g., a suspension of 10nm iron oxide particles). A third research focus is the development of electrochemical apparatus to control local pH for various applications in bio-chemical array fabrication, electrolysis for generation of Hydrogen gas, and potentially other applications.
- Office Location: 3389 CIEMAS
- Office Phone: (919) 660-8261
- Email Address:
- Web Page:
Theoretical and Experimental studies on concentration gradients arising in ionic fluids and magnetic liquids.
Micro-electronic mechanical machines
Nanomaterial manufacturing and characterization
Awards, Honors, and Distinctions:
- Benjamin Franklin Key Award, IEEE, Philadelphia Chapter
- National Defense Science and Engineering Graduate Research Fellowship, National Defense Science and Engineering Graduate Program
- World Technology Network Award Nominee, World Technology Network
Representative Publications: (More Publications)
- B.B. Yellen, R. M. Erb, H. S. Son, R. Hewlin, Jr., H. Shang, G. U. Lee, Traveling Wave Magnetophoresis for High Resolution Chip Based Separations, Lab on a Chip, vol in press (December, 2007).
- Erb, R.M. and Yellen, B.B., Model of detecting nonmagnetic cavities in ferrofluid for biological sensing applications, IEEE Trans. Magn. (USA), vol 42 no. 10 (2006), pp. 3554 - 6 [TMAG.2006.879614] [abs].
- Yellen, Benjamin B. and Erb, Randall M. and Halverson, Derek S. and Hovorka, Ondrej and Friedman, Gary, Arraying nonmagnetic colloids by magnetic nanoparticle assemblers, IEEE Transactions on Magnetics, vol 42 no. 10 (2006), pp. 3548 - 3553 [TMAG.2006.879623] [abs].
- Yellen, Benjamin B. and Forbes, Zachary G. and Halverson, Derek S. and Fridman, Gregory and Barbee, Kenneth A. and Chorny, Michael and Levy, Robert and Friedman, Gary, Targeted drug delivery to magnetic implants for therapeutic applications, Journal of Magnetism and Magnetic Materials, vol 293 no. 1 (2005), pp. 647 - 654  [abs].
- Yellen, B.B. and Hovorka, O. and Friedman, G., Arranging matter by magnetic nanoparticle assemblers, Proc. Natl. Acad. Sci. USA (USA), vol 102 no. 25 (2005), pp. 8860 - 4 [pnas.0500409102] [abs].
- Yellen, Benjamin B. and Friedman, Gary, Programmable assembly of heterogeneous colloidal particle arrays, Advanced Materials, vol 16 no. 2 (2004), pp. 111 - 115 [adma.200305603] [abs].
- Yellen, B.B. and Fridman, G. and Friedman, G., Ferrofluid lithography, Nanotechnology, vol 15 no. 10 (2004), pp. 562-565 -  [abs].
- Yellen, Benjamin B. and Friedman, Gary, Programmable assembly of colloidal particles using magnetic microwell templates, Langmuir, vol 20 no. 7 (2004), pp. 2553 - 2559 [la0352016] [abs].
- Forbes, Zachary G. and Yellen, Benjamin B. and Barbee, Kenneth A. and Friedman, Gary, An Approach to Targeted Drug Delivery Based on Uniform Magnetic Fields, IEEE Transactions on Magnetics, vol 39 no. 5 II (2003), pp. 3372 - 3377 [TMAG.2003.816260] [abs].