Nuclear magnetic resonance and relaxation in systems with magnetic nanoparticles
Magnetic nanoparticles are promising for many interesting applications in science, technology and biology, including MRI and medical hypothermia. Our experimental studies of nano particle-related effects observed in NMR spectra and spin relaxation demonstrate very high sensitivity of spin relaxation times, T1, to the molecular motion. The magnitude of the effects depends on the particle size. Ultra-fine iron oxide particles are found to be most promising for biomedical imaging based on T1 contrast.