Room temperature ferromagnetic gadolinium silicide nanoparticles
US9907865B2 · kind B2 · utility
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Key dates
| Filing date | Oct 24, 2016 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Oct 24, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/42
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A particle usable as T1 and T2 contrast agents is provided. The particle is a gadolinium silicide (Gd5Si4) particle that is ferromagnetic at temperatures up to 290 K and is less than 2 μm in diameter. An MRI contrast agent that includes a plurality of gadolinium silicide (Gd5Si4) particles that are less than 1 μm in diameter is also provided. A method for creating gadolinium silicide (Gd5Si4) particles is also provided. The method includes the steps of providing a Gd5Si4 bulk alloy; grinding the Gd5Si4 bulk alloy into a powder; and milling the Gd5Si4 bulk alloy powder for a time of approximately 20 minutes or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.