Ink-Jet Printing of Chemosensing Layers Based on Surface-Functionalized Silica Nanoparticles

摘要

Abstract Silica nanoparticles (SNPs) with a diameter of 100 nm and surface-modified by covalently linked dibenzoylmethanatoboron difluoride have been synthesized and characterized. Suspensions of SNPs in dichloroethane are used as ink suitable for the microvalve ink-jet printing of sensing layers. It is demonstrated that SNP-based thin films are sensitive for methylbenzene vapors and could be a good candidate as a printed sensor. Responses of sensing films to methylbenzene vapors are analyzed using multivariate nonlinear regression.