Functionalized nanoparticles for sensor applications.

Simonson, Robert Joseph ; Childs, Kenton David ; Howell, Stephen Wayne ; Dirk, Shawn M. ; Wheeler, David Roger

Sandia National Laboratories

关键词: Nanostructures;    Electrodes;    Cross-Linking;    36 Materials Science;    Nanoparticles.;   

DOI  :  10.2172/876348
RP-ID  :  SAND2005-6004
RP-ID  :  AC04-94AL85000
RP-ID  :  876348

美国|英语

来源: UNT Digital Library

【 摘 要 】

We will describe our work on functionalized arrays of nanoparticles crosslinked with short conducting molecules that contain sensing functionalities. These bridging ligands modulate their conductivity based on their interaction with analytes. This functionalized nanoparticles organic ligand composite material once it is assembled between nanogaps electrodes will provide nanosized sensors that can be easily interrogated. These nanogap sensors will be engineered so that they can be fabricated into arrays of different sensor elements. This project consists of a number of different requirements that must be met in order to enable the use of functionalized nanoparticles for sensor applications. The first requirement is the appropriately functionalized nanoparticle. The second is a method to assemble the particles. The third requirement is the generation of a nanogap to contain the nanoparticles. The successes in each of these areas will be discussed as will the sensing behavior of the final films.