Potential-Induced Enantioselective Uptake of Amino Acid into Molecularly Imprinted Overoxidized Polypyrrole
Citations Over TimeTop 10% of 2000 papers
Abstract
Overoxidized polypyrrole films templated with L-glutamate have been utilized for enantioselective detection of L- and D-glutamic acid. Various important fabrication factors controlling the performance of the overoxidized polypyrrole films have been investigated using fluorescence spectrometry in conjugation with the electrochemical quartz crystal microbalance technique. The measured fluorescence intensity was related to the concentration of glutamate taken up into the films. It was found that L-glutamate was inserted approximately 30 times higher into the film than D-glutamate. Several key parameters such as applied potential and pH of amino acid solution were varied to achieve the optimum sensor response. The sensor templated with L-glutamic acid also exhibited excellent selectivity over several other L- and D-amino acids. Higher enantioselectivity of overoxidized polypyrrole film than that for previously reported imprinted polymers can be attributed to the potential-induced uptake/release of targeted molecules.
Related Papers
- → A New Polypyrrole/Disulfide Electrode Studied by Electrochemistry and the Electrochemical Quartz Crystal Microbalance(1996)14 cited
- → The effect of different electrical stimuli on the oxidation/reduction behaviour of polypyrrole-pts A Study Using the Electrochemical Quartz Crystal Microbalance(1997)11 cited
- → Effects of Magnetoelectropolymerization on Doping-Undoping Behavior of Polypyrrole(1999)19 cited
- → Electrochemical Formation of Cation‐exchanging Polypyrrole Films within Various Hydrophilic–Hydrophobic Domains(1996)