β-Cyclodextrin electropolymerization: mechanism, electrochemical behavior, and optimization

Cyclodextrins as Supramolecular Recognition Systems: Applications in the Fabrication of Electrochemical Sensors

“…It has been suggested that it is the -CH 2 -OH of the β-CD which is oxidized, as the C-1 position is blocked by the glycosidic linkage [136]. This active site can form a dimer with an adjacent β-CD molecule but also form a covalent bond with the carbon substrate electrode [139], which is consistent with the good adherence of the polymer to the substrate electrode. It is also well established that the primary alcohol groups are susceptible to oxidation, giving rise to the formation of aldehyde and/or a carboxylic acid group [146].…”

“…Acidic conditions are generally used with the polymer being generated in slightly acidic phosphate buffer [133,134], or in the presence of HClO 4 [135,136]. These polyβ-CDs have been deposited at carbon paste electrodes [136,137], glassy carbon [138][139][140], and rGO decorated screen printed electrodes [129], and combined with CNTs [141,142], rGO [132,133,143], boron-doped rGO [134], TiO 2 [144], and gold nanoparticles [145].…”

“…It is also well established that the primary alcohol groups are susceptible to oxidation, giving rise to the formation of aldehyde and/or a carboxylic acid group [146]. These carboxylic acid groups can react with the primary hydroxyl groups through an esterification reaction to give the β-CD dimer [139]. As β-CD dimers, trimers, and higher polymeric units are formed, the solubility in aqueous media will decease significantly in the diffusion layer, leading to the precipitation of the insoluble poly-β-CD.…”

In situpolymerization process: an essential design tool for lithium polymer batteries

“…Electropolymerization is often carried out in a precursor solution supported by a three-electrode electrochemical cell (Figure 45a), 529,530 where the characteristics of the electropolymerized film depend on the type of monomer, electrolyte, electrodes, the viscosity of the medium, applied potential/current, scan rate, and ultimately the electrochemical method used. A three-electrode system is generally used to control the respective electrode potential, 531 however, the polymerization can also be carried out in two-electrode assembly.…”

Chemical binding of horseradish peroxidase enzyme with poly beta‐cyclodextrin and its application as molecularly imprinted polymer for the monitoring of H2O2 in human plasma samples

“…9 Various methods involving the preparation of MIP films have been suggested according to chemical polymerization, while the implementation of the polymerization of electroactive functional monomers, as novel concepts, serves as a new alternative strategy for the preparation of MIP. 10,11 In contrast to in situ chemical polymerization, preparation procedure in molecular imprinting-based electrochemical (EC) sensors can be done without the use of cross-linkers, initiators, or catalysts, 12 which are necessary functional elements in chemical polymerization, therefore a facile and economical process emerge as advantageous approach for MIP formation. Electrosynthesized polymers as imprinted polymer allows to regulate the thickness and the density of the polymer layer with EC control of the polymerization process (CV scan cycles).…”