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Selective transport and concentration of molecules to specified regions on a substrate both enhances the potential to detect such molecules and provides a path to spatially localize such molecules prior to initiation of subsequent chemical reactions. Here, we first embed radially symmetric α‐, β‐, and γ‐cyclodextrin gradients in a hydrogel matrix. Driven by host‐guest interactions between the cyclodextrins...
Aufkonzentrierung mittels eines chemischen Gradienten erhöht die Empfindlichkeit und Selektivität chemischer Sensoren. P. V. Braun et al. zeigen in ihrer Zuschrift auf S. 18333, wie in Hydrogel eingebettete radialsymmetrische Cyclodextrin‐Gradienten den Transport von Molekülen wie z. B. dem Nervenwirkstoffsimulans 4‐Methylumbelliferylphosphat dirigieren. Um eine Echtzeitanzeige der Analytkonzentration...
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