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Opposite Signs of Capacitive Microsensor Signals upon Exposure to the Enantiomers of Methyl Propionate Compounds
Author(s) -
Kurzawski Petra,
Bogdanski Anja,
Schurig Volker,
Wimmer Reinhard,
Hierlemann Andreas
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200704346
Subject(s) - propionate , enantiomer , capacitive sensing , chemistry , identity (music) , stereochemistry , computer science , organic chemistry , physics , acoustics , operating system
Capacitive chemical sensors , coated with modified cyclodextrins, provide antipode signals upon exposure to the enantiomers of methyl propionate compounds, thus allowing an unambiguous determination of the enantiomer identity (see graphic). The dielectric coefficients of the enantiomer–receptor complexes significantly differ, so that this simple sensor technique can be used to detect the subtle effects of different molecular orientations.