Title :
Microengineered iron and iron-oxide contrast agent particles for tunable multispectral magnetic resonance imaging
Author :
Wang, X. ; Anderson, S.W. ; Zhang, X.
Author_Institution :
Dept. of Mech. Eng., Boston Univ., Boston, MA, USA
Abstract :
In this paper, we demonstrate a novel type of contrast agent with multiplexing capability for use in magnetic resonance imaging (MRI) applications. Keeping biocompatibility in mind, iron and several iron oxide thin films with varying magnetic properties were prepared and characterized using a superconducting quantum interference device (SQUID). Double-disk shaped particles constructed with iron and iron oxide disks separated by polyimide posts were fabricated and validated using an MRI scanner. Spectral tunability was achieved by varying both the geometry and the magnetic properties of the particles.
Keywords :
SQUIDs; biomedical MRI; iron compounds; magnetic particles; magnetic thin films; polymers; FeO; MRI scanner; SQUID; biocompatibility; double-disk shaped particles; iron oxide thin films; iron-oxide contrast agent particles; magnetic properties; microengineered iron; polyimide posts; superconducting quantum interference device; tunable multispectral magnetic resonance imaging; Iron; Magnetic resonance imaging; Magnetic separation; Perpendicular magnetic anisotropy; Polyimides; Saturation magnetization; Contrast agents; iron oxide thin film; magnetic resonance imaging; multiplexing; multispectral; tunability;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems Conference (TRANSDUCERS), 2011 16th International
Conference_Location :
Beijing
Print_ISBN :
978-1-4577-0157-3
DOI :
10.1109/TRANSDUCERS.2011.5969325
