Methods of making functionalized nanorods

US8093494B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Ilan Gur · San Francisco, US
• Delia Milliron · Berkeley, US
• A. Paul Alivisatos · Oakland, US
• Haitao Liu · Boise, US

Key dates

• Filing date: Nov 10, 2005
• Grant date: Jan 10, 2012
• Expiry date: Jul 12, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31678
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A process for forming functionalized nanorods. The process includes providing a substrate, modifying the substrate by depositing a self-assembled monolayer of a bi-functional molecule on the substrate, wherein the monolayer is chosen such that one side of the bi-functional molecule binds to the substrate surface and the other side shows an independent affinity for binding to a nanocrystal surface, so as to form a modified substrate. The process further includes contacting the modified substrate with a solution containing nanocrystal colloids, forming a bound monolayer of nanocrystals on the substrate surface, depositing a polymer layer over the monolayer of nanocrystals to partially cover the monolayer of nanocrystals, so as to leave a layer of exposed nanocrystals, functionalizing the exposed nanocrystals, to form functionalized nanocrystals, and then releasing the functionalized nanocrystals from the substrate.