Controlled synthesis of highly monodispersed gold nanoparticles
US7524354B2 · kind B2 · utility
3Cited by
5References
18Claims
0Family size
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Key dates
| Filing date | Jul 7, 2005 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | May 16, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of synthesizing highly monodispersed Au nanoparticles having diameters in the range of 30-90 nm. Seed nanoparticles in a controlled concentration are combined with a precursor, also in a controlled concentration, a reducing and capping agent (e.g., sodium acrylate) in aqueous solution. Under controlled conditions of pH, temperature, and time, highly monodispersed nanoparticles having diameters in the range of 30-100 nm are produced. A relative size standard deviation of the size distribution of the resulting nanoparticles is as low as 2%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.