3D-printed system optimizing dissolution of hyperpolarized gaseous species for micro-sized NMR.

Dissolution of hyperpolarized species in liquids of interest for NMR is often hampered by the presence of bubbles that degrade the field homogeneity. Here a device composed of a bubble pump and a miniaturized NMR cell both fitted inside the narrow bore of an NMR magnet is built by 3D printing. (129)Xe NMR experiments performed with hyperpolarized xenon reveal high and homogeneous dissolution of the gas in water.