Iron oxide magnetic particles
US-2024058449-A1 · Feb 22, 2024 · US
Nanoparticles and methods of making
US2017143854A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017143854-A1 |
| Application number | US-201615359606-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 22, 2016 |
| Priority date | Nov 23, 2015 |
| Publication date | May 25, 2017 |
| Grant date | — |
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Abstract
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Magnetic nanoparticles and synthesis of synthesis are described.
First claim
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What is claimed is: 1 . A method of preparing a redox-active nanoparticle comprising: selecting a solvent to optimize redox tuning of a reaction medium; decomposing a precursor compound at a reflux temperature of the solvent to produce the nanoparticle. 2 . The method of claim 1 , further comprising oxidizing the nanoparticle. 3 . The method of claim 2 , wherein the oxidized nanoparticle is an inverse spinel phase iron oxide. 4 . The method of claim 1 , wherein the oxidized nanoparticle includes iron, manganese, cobalt, nickel, copper, or zinc or binary or ternary mixtures thereof. 5 . The method of claim 1 , wherein the solvent includes dibenzyl ether, diphenyl ether, anisole, phenetole, an aromatic ester, an aromatic acetal, an aromatic aminal or an aromatic anhydride. 6 . The method of claim 1 , wherein the solvent is a mixture. 7 . The method of claim 6 , wherein the mixture includes a high boiling point alkene and a high boiling point ether. 8 . The method of claim 7 , wherein the high boiling point is at least 280° C. 9 . The method of claim 7 , wherein the solvent includes a mixture of two or more of octadecane, 1-octadecene (ODE), squalene (SQE), dioctyl ether, and dibenzyl ether (DBE). 10 . The method of claim 1 , wherein the compound includes an iron oleate. 11 . The method of claim 1 , wherein the nanoparticle includes ferrite. 12 . The method of claim 1 , wherein the nanoparticle has a size of between 7 and 30 nm. 13 . A magnetic nanoparticle population comprising a plurality monodisperse ferrite particles having a size of between 7 and 30 nm. 14 . A method of imaging comprising introducing the nanoparticle population of claim 13 into a subject; and creating a magnetic particle imaging signal of the subject.
Assignees
Inventors
Classifications
containing zinc · CPC title
obtained by TEM, STEM, STM or AFM · CPC title
Nanometer sized, i.e. from 1-100 nanometer · CPC title
Ferroso-ferric oxide [Fe3O4] · CPC title
Magnetic properties · CPC title
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- What does patent US2017143854A1 cover?
- Magnetic nanoparticles and synthesis of synthesis are described.
- Who is the assignee on this patent?
- Massachusetts Inst Technology
- What technology area does this patent fall under?
- Primary CPC classification A61K49/1818. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Thu May 25 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).