Chromogenic Detection of Nerve Agent Mimics by Mass Transport Control at the Surface of Bifunctionalized Silica Nanoparticles

Abstract

Limited access: Silica nanoparticles functionalized with alcohols and thiols have been used for the chromofluorogenic detection of nerve agent mimics. In the absence of the mimics, the thiol groups (yellow circles) react with squaraine dyes (blue diamonds) and result in the bleaching of the solution. In the presence of the mimics, the squaraine–thiol reaction is inhibited (see picture; red triangle=hydroxy, empty triangles=silicate, blue circle=nitrogen). Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.