Functionalized gold nanoparticles and methods thereof

US10024864B2 · kind B2 · utility

Assignee

• KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS · SA

Inventors

• Mohammed Nasiruzzaman Shaikh · Dhahran, SA
• Aasif Helal · Dhahran, SA
• Abiola Azeez Jimoh · Dhahran, SA

Key dates

• Filing date: Nov 10, 2015
• Grant date: Jul 17, 2018
• Expiry date: Aug 22, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2800/04
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Gold nanoparticles functionalized with thiolated, bidentate Schiff base ligands. The Schiff base ligands form a ligand monolayer surrounding and binding to the surface of a gold nanoparticle core through Au—S linkages. The functionalized gold nanoparticle composites have a spherical shape, an average diameter of 7-15 nm and a narrow particle size distribution. Methods of assessing these functionalized gold nanoparticle composites as fluorescent probes in Fe(III) chemosensing applications, methods of preparing the functionalized gold nanoparticle composites and methods of detecting Fe(III) ions with the same are also provided.