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Inside Cover: Selective Autonomous Molecular Transport and Collection by Hydrogel‐Embedded Supramolecular Chemical Gradients (Angew. Chem. Int. Ed. 50/2019)
Author(s) -
Zhang Shiyan,
Zhang Chunjie,
Chen Hao,
Kieffer Spencer J.,
Neubrech Frank,
Giessen Harald,
Alleyne Andrew G.,
Braun Paul V.
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201914099
Subject(s) - analyte , supramolecular chemistry , cover (algebra) , selectivity , cyclodextrin , chemical sensor , molecule , materials science , nanotechnology , chemistry , signal (programming language) , chemical engineering , combinatorial chemistry , organic chemistry , chromatography , computer science , engineering , mechanical engineering , electrode , catalysis , programming language
Chemical‐gradient‐driven concentration enhances the sensitivity and selectivity of chemical sensors. In their Communication on page 18165, P. V. Braun et al. show how hydrogel‐embedded radially symmetric cyclodextrin gradients direct transport of molecules including the nerve agent simulant 4‐methylumbelliferyl phosphate. To provide near real‐time read‐out of the analyte concentration an array of IR‐resonant metallic nanoantennas was used to enhance the IR signal generated by the analyte.