Magnetic inorganic iron-based nanoparticles
US12391944B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Dec 29, 2022 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Jan 1, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2320/32
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A nanoparticle, which has a metal oxide core and a cerium shell is provided. The weight ratio of the cerium within the shell to the metal oxide in the core is at least 1%. Additionally a method for delivering a ligand into a cell with the nanoparticle is provided. Processes for making the nanoparticle which include: sonicating an aqueous composition containing Ceric Ammonium Nitrate and a prefabricated nano particle suspension; and (b) adding a polycationic polymer to the mixture (for NP surface functionalization), are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.