Abstract
An acoustic wave sensor coated with an artificial biomimetic recognition element has been developed to selectively detect the amino acid L-serine. A highly specific non-covalently imprinted polymer was cast on one electrode of a quartz crystal microbalance (QCM) as a thin permeable film. Selective rebinding of the L-serine was observed as a frequency shift in the QCM with a detection limit of 2 ppb and for concentrations up to 0.4 ppm. The sensor binding is shown to be capable of discrimination between L- and D-stereoisomers of serine as a result of the enantioselectivity of the imprinted binding sites.
Original language | English |
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Pages (from-to) | 103-106 |
Journal | Sensors and Actuators B: Chemical |
Volume | 89 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 1 Mar 2003 |
Keywords
- molecular imprinted polymers (MIPs)
- quartz crystal microbalance (QCM)
- sensor