Authors: Dickert FL
, Forth P
, Lieberzeit P
, Tortschanoff M
Molecular imprinting in chemical sensing - Detection of aromatic and halogenated hydrocarbons as well as polar solvent vapors.
Publication date: 1998
Journal: Fresenius Journal of Analytical Chemistry
Abstract: The technique of molecular imprinting - a novel tool of sensor material synthesis - can be successfully combined with mass-sensitive transducers. Imprinted polymers are prepared in presence of inert analytes acting as molecular templates. The remaining imprint allows the molecular recognition of an analyte due to host-guest- interactions. The sensor properties of devices coated with imprint polymers can be tuned to the analyte by variation of the polymerization solvent and the amount of cross-linker added. A further sensitivity enhancement can be achieved by rising the resonant frequencies of QMBs and SAW resonators, since the signal to noise-ratio increases in an approximately linear manner with the oscillation frequency
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