Chemical sensors from nanoparticle/dendrimer composite materials
First Claim
1. Chemical sensor, comprising a substrate, a sensor medium formed on the substrate, and detection means for detecting a change of a physical property of the sensor medium, wherein the sensor medium comprises a network formed of non-linear polymer or oligomer molecules having linker units and of particles of at least one second component, wherein the linker units are bound to the surface of the particles of the at least one second component thereby interlinking said particles.
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Abstract
The invention relates to a chemical sensor comprising a sensor film formed of a nanoparticle network in which the nanoparticles are interlinked by functionalized dendrimer molecules. The dendrimers support an efficient uptake of analyte molecules by the film material and therefore enable a high sensitivity of the sensor. In addition, the chemical nature of the dendrimers strongly determines the chemical selectivity of the sensor device. By cross-linking the components of the sensitive material the sensor displays a good mechanical stability.
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32 Claims
- 1. Chemical sensor, comprising a substrate, a sensor medium formed on the substrate, and detection means for detecting a change of a physical property of the sensor medium, wherein the sensor medium comprises a network formed of non-linear polymer or oligomer molecules having linker units and of particles of at least one second component, wherein the linker units are bound to the surface of the particles of the at least one second component thereby interlinking said particles.
Specification