Selective chemical sensors based on interlinked nanoparticle assemblies

US7211439B2 · kind B2 · utility

Assignee

• Sony Deutschland GmbH · DE

Inventors

• Tobias Vossmeyer · Fellbach, DE
• Isabelle Besnard · Lörrach, DE
• Jurina Wessels · Stuttgart, DE
• William Ford · Stuttgart, DE
• Akio Yasuda · Eßlingen, DE

Key dates

• Filing date: Dec 11, 2001
• Grant date: May 1, 2007
• Expiry date: Nov 8, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N33/0034
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a nanoparticle film comprising a nanoparticle network formed of nanoparticles interlinked by linker molecules. The linker molecules have at least two linker units that can bind to the surface of the nanoparticles. By introducing selectivity-enhancing units in the linker molecule, the selectivity of the nanoparticle film towards target analytes can be enhanced. A fine-tuning of the selectivity can be achieved by including a fine-tuning unit in the vicinity of the selectivity-enhancing unit. The nanoparticle film can be used to produce chemical sensors which are selective and stable in their performance.