Detection of uranium(VI) in aqueous solution by a calix[6]arene modified electrode

Quantitative Studies of Metal Ion Adsorption on a Chemically Modified Carbon Surface: Adsorption of Cd(II) and Hg(II) on Glutathione Modified Carbon

“…Whilst the analytical value of these approaches has been amply demonstrated relatively less effort has been devoted to exploring, quantitatively, the adsorption characteristics of metals on modified surfaces. Mandler and Downard used some modified electrodes such as crown ether modified glassy carbon electrode [12], mercaptoalkanoic acid on gold electrode [14], cysteamine self assembled monolayer on gold electrode [16], 1,9-nonadithiol on gold electrode [17], enzyme layers on glassy carbon electrodes [18], and alizarin modified on screen printed electrode [19] for the determination of heavy metal ions. In this paper we attempt to determine the adsorption isotherm characteristics of two model toxic metal cations on a glutathione modified carbon surface, and seek to encourage further development in the area such as making sensors for these species but more particularly providing an approach for the intelligent optimization of sensor materials.…”

Formation, Characterization, and Applications of Organic and Inorganic Nanometric Films

“…[27,28] Two approaches were applied: the electrostatic attachment of the uranophile, calix [6]arene (Figure 2 A), and the formation of a phosphate-based SAM ( Figure 2B). We found that the calixarene, although highly selective towards uranyl, UO 2 2 + , exhibits slow kinetics of complexation, and therefore the association of the phosphate-based SAM seems to be superior.…”

Simultaneous voltammetric determination of dopamine and uric acid based on Langmuir–Blodgett film of calixarene modified glassy carbon electrode

“…Calixarenes, cavity-shaped cyclic phenol molecules, being considered the third best host molecules after cyclodextrins and crown ethers, have been extensivly used in electrochemistry sensor because they can form stable host-guest complexes with target molecules, which show high molecular selectivity and the engaging supramolecular recognition ability. At first, most investigations related to calixarenes and their derivatives focused on their applications for metal ions [12][13][14][15][16][17]. At present, their applications for the determination of small biomolecules such as folic acid (FA) [18], DA [19], norepinephrine [20] and serotonin [21] ea al, is also raised.…”