Ferrite nanoparticles
US-2023202860-A1 · Jun 29, 2023 · US
Antimicrobial spinel ferrite treatment composition
US12006226B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12006226-B2 |
| Application number | US-202318338880-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 21, 2023 |
| Priority date | Jan 17, 2019 |
| Publication date | Jun 11, 2024 |
| Grant date | Jun 11, 2024 |
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Abstract
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Methods of forming spinel ferrite nanoparticles containing a chromium-substituted copper ferrite as well as properties (e.g. particle size, crystallite size, pore size, surface area) of these spinel ferrite nanoparticles are described. Methods of preventing or reducing microbe growth on a surface by applying these spinel ferrite nanoparticles onto the surface in the form of a suspension or an antimicrobial product are also described.
First claim
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The invention claimed is: 1. An antimicrobial treatment composition, comprising: spinel ferrite nanoparticles, and a liquid medium; wherein the spinel ferrite nanoparticles comprise at least one chromium-substituted copper ferrite selected from the group consisting of CuCr 0.4 Fe 1.6 O 4 , CuCr 0.6 Fe 1.4 O 4 , CuCr 0.8 Fe 1.2 O 4 , and CuCrFeO 4 , and wherein the spinel ferrite nanoparticles are suspended in the liquid medium. 2. The antimicrobial treatment composition of claim 1 , comprising the spinel ferrite nanoparticles in an amount of 50 μg/mL to 100 mg/mL. 3. The antimicrobial treatment composition of claim 1 , wherein the liquid medium is water. 4. The antimicrobial treatment composition of claim 1 , comprising a chromium-substituted copper ferrite having the formula CuCr 0.4 Fe 1.6 O 4 . 5. The antimicrobial treatment composition of claim 1 , comprising a chromium-substituted copper ferrite having the formula CuCr 0.6 Fe 1.4 O 4 . 6. The antimicrobial treatment composition of claim 1 , comprising a chromium-substituted copper ferrite having the formula CuCr 0.8 Fe 1.2 O 4 . 7. The antimicrobial treatment composition of claim 1 , wherein the spinel ferrite nanoparticles have a crystallite size of from 43.3 to 20.2 nm. 8. The antimicrobial treatment composition of claim 1 , wherein the spinel ferrite nanoparticles have spherical morphology and an average particle size of from 73.5 to 47.6 nm. 9. The antimicrobial treatment composition of claim 1 , wherein the spinel ferrite nanoparticles have an average particle size in a range of 20-90 nm. 10. The antimicrobial treatment composition of claim 1 , wherein the spinel ferrite nanoparticles are porous. 11. The antimicrobial treatment composition of claim 1 , wherein the spinel ferrite nanoparticles have a BET surface area in a range of 8-30 m 2 /g. 12. The antimicrobial treatment composition of claim 1 , wherein the spinel ferrite nanoparticles have an optical band gap energy value of 1.0-2.0 eV.
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Classifications
spinel-type (AB2O4) · CPC title
Manufacture or treatment of nanostructures · CPC title
by IR- or Raman-data · CPC title
by d-values or two theta-values, e.g. as X-ray diagram · CPC title
Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title
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- What does patent US12006226B2 cover?
- Methods of forming spinel ferrite nanoparticles containing a chromium-substituted copper ferrite as well as properties (e.g. particle size, crystallite size, pore size, surface area) of these spinel ferrite nanoparticles are described. Methods of preventing or reducing microbe growth on a surface by applying these spinel ferrite nanoparticles onto the surface in the form of a suspension or an a…
- Who is the assignee on this patent?
- Univ Imam Abdulrahman Bin Faisal
- What technology area does this patent fall under?
- Primary CPC classification C01G37/006. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 11 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).