Benjamin B. Yellen, Assistant Professor of Mechanical Engineering and Materials Science and Center for Biologically Inspired Materials and Material Systems

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.

Contact Info:

Office Location:	3389 CIEMAS
Office Phone:	(919) 660-8261
Email Address:
Web Page:	http://www.yellen.mems.duke.edu

Education:

PhD	Drexel University	2004
BS	Emory University	1998

Specialties:

Micro-electronic mechanical machines
Nanomaterial manufacturing and characterization
Nonlinear Dynamics
Diagnostics
Computational Electromagnetics

Research Interests:

Current projects: Engineering pH switch at the solid liquid interface, Traveling wave magnetophoresis of microparticles, Controlling concentration gradients in magnetic and nonmagnetic colloidal suspensions

Theoretical and Experimental studies on concentration gradients arising in ionic fluids and magnetic liquids.

Keywords:

ferrofluid • ferroelectric • ferromagnetic • colloids

Curriculum Vitae

Current Ph.D. Students  

• Hui S Son  
• Randall M Erb  

Postdocs Mentored

• Robert Ducker (April 01, 2007 - present)  

Representative Publications   (More Publications)   (search)

1. 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)
2. 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]
3. 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]
4. 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 [083]  [abs]
5. 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]
6. 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]
7. Yellen, B.B. and Fridman, G. and Friedman, G., Ferrofluid lithography, Nanotechnology, vol. 15 no. 10 (2004), pp. 562-565 - [011]  [abs]
8. 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]
9. 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]