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On-wafer Magnetic Resonance of Magnetite Nanoparticles

Published

Author(s)

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

Abstract

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.
Citation
Journal of Magnetism and Magnetic Materials
Volume
393

Keywords

magnetic nanoparticles, magnetite, magnetic resonance

Citation

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], https://doi.org/10.1016/j.jmmm.2015.05.025 (Accessed July 21, 2024)

Issues

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Created May 11, 2015, Updated January 27, 2020