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US-12122948-B2 · Oct 22, 2024 · US
Fluorescent silica nanoparticles through silica densification
US8961825B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8961825-B2 |
| Application number | US-201013264569-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 15, 2010 |
| Priority date | Apr 15, 2009 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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Provided herein are core-shell silica nanoparticles with a dense silica shell. The nanoparticles have improved properties such as, for example, increased photo luminescence and stability. Also provided are methods for making the nanoparticles.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for producing core-shell silica nanoparticles comprising the steps of: a) preparing a silica core by combining a silica precursor and a silica precursor covalently bound to a light-absorbing material and/or light-emitting fluorescent or phosphorescent material, under conditions such that the silica precursors are hydrolyzed resulting in formation of a silica core, wherein the light-emitting material and/or light-absorbing material is covalently boun…
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Chemistry & Metallurgy · mapped topic
- C09K11/025Primary
Chemistry & Metallurgy · mapped topic
Operations & Transport · mapped topic
Chemistry & Metallurgy · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US8961825B2 cover?
- Provided herein are core-shell silica nanoparticles with a dense silica shell. The nanoparticles have improved properties such as, for example, increased photo luminescence and stability. Also provided are methods for making the nanoparticles.
- Who is the assignee on this patent?
- Wiesner Ulrich B, Herz Erik, Ow Hooisweng, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C09K11/025. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 24 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).