Abstract
The invention is directed to hydrophilic and hydrophobic superparamagnetic nanoparticles and their use as contrast agents for NMR including agents that distinguish oil and water in NMR logging of geological formations containing oil or water. Methods of making these SPIONs are also described.
| Original language | American English |
|---|---|
| Patent number | US12012544B2 |
| State | Published - 18 Jun 2024 |