title: New supramolecular interactions for electrochemical sensors development: different cucurbit[8]uril sensing platform designs.
abstract: Three different strategies for cucurbit[8]uril immobilization on a glassy carbon electrode have been assayed. The electrochemical properties of the resulting modified electrodes in solutions containing neutral, positively and negatively charged potential cucurbit[8]uril guests were investigated by cyclic voltammetry and electrochemical impedance spectroscopy. The comparison of the electrochemical behaviour exhibited by the unmodified electrodes against various probes, with respect to that of each modified electrode, resulted in an appropriate method to choose among different strategies for the development of electrochemical sensors. These sensors are based on the incorporation of the cucurbit[8]uril molecular selection properties that depend on the chemical characteristics of the potential analytes. Furthermore, atomic force microscopy was employed for the characterization of the different surfaces developed.
authors: Departamento de Química Analítica y Análisis Instrumental, Universidad Autónoma de Madrid, Cantoblanco, Spain.
authors: María del
authors: Md
authors: Pozo
authors: Elías
authors: E
authors: Blanco
authors: Enrique
authors: E
authors: Fatás
authors: Pedro
authors: P
authors: Hernández
authors: Carmen
authors: C
authors: Quintana