Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

On-wafer Magnetic Resonance of Magnetite Nanoparticles



Charles A. Little, Stephen E. Russek, James C. Booth, Pavel Kabos, Robert J. Usselman


Magnetic resonance measurements of ferumoxytol and TEMPO were made using an on-wafer transmission line technique with a vector network analyzer, allowing for broadband measurements of small sample volumes (4 nl) and a small numbers of spin (1 nmole). On-wafer resonance measurements were compared with standard single-frequency cavity based electron paramagnetic resonance (EPR) measurements; and results showed similar line shapes. On-wafer magnetic resonance using integrated microfluidics and microwave technology can significantly reduce cost and sample volumes required for EPR spectral analysis and allow for integration of EPR with existing lab-on-a-chip processing and characterization techniques for point-of-care medical diagnostic applications.
Journal of Magnetism and Magnetic Materials


magnetic nanoparticles, magnetite, magnetic resonance


Little, C. , Russek, S. , Booth, J. , Kabos, P. and Usselman, R. (2015), On-wafer Magnetic Resonance of Magnetite Nanoparticles, Journal of Magnetism and Magnetic Materials, [online], (Accessed July 21, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created May 11, 2015, Updated January 27, 2020