Hyperpolarization by Dissolution Dynamic Nuclear Polarization

Radical-induced hetero-nuclear mixing and low-field 13C relaxation in solid pyruvic acid

“…Under these conditions, the electron spins are almost fully polarized, and it is possible to achieve near unity polarization also for nuclear spins. The hyperpolarized sample is then dissolved with a jet of hot solvent, and the solution is transferred to a second magnet for use in sensitized NMR spectroscopy 2–4 or MRI. 5–8…”