Electrodeposited Fe and Fe–Au nanowires as MRI contrast agents†
Abstract
Electrodeposited Fe and Fe–Au nanowires were studied for potential as MRI contrast agents, especially for T2-weighted imaging. Transverse relaxivities up to r2 = 77.1 mM Fe−1 s−1 (at 1.5 T) were achieved when Fe–Au nanowires were coated with thiol and carboxylic acid functionalized poly(ethyleneglycol). T2-Weighted images (9 T) verified successful contrast.