Method for forming nanoparticle films and application thereof
US7212284B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2004 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Apr 29, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/25
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed herein is a method for making a nanoparticle film comprising dispersing nanoparticles in a first liquid; adding a second liquid to the first liquid to form a nanoparticle film on top of a solution comprising the first liquid, the second liquid and the nanoparticles, wherein the second liquid has a dielectric constant that is different from a dielectric constant of the first liquid; and contacting a substrate with the solution to deposit the nanoparticle film onto the contacted portion of the substrate. Disclosed herein too is a method for detecting an analyte comprising dispersing nanoparticles in a first liquid; adding a second liquid to the first liquid to form a nanoparticle film on top of a solution comprising the first liquid, the second liquid and the nanoparticles, wherein the second liquid has a dielectric constant that is different from a dielectric constant of the first liquid; contacting a substrate with the solution to deposit the nanoparticle film onto the substrate; disposing upon the nanoparticle film an analyte; and performing surface enhanced Raman spectroscopy to determine the identity of the analyte.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.