Electrochemical quartz crystal microbalance analysis of the oxidation reaction of phenols found in wines at lutetium bisphthalocyanine electrodes

Collagen immunoassay as a method to optimise surface functionalisation

“…It is very effective at determining changes in mass caused by the attachment of molecules, including proteins, to functionalised surfaces . While enhancements to QCM, such as simultaneous SPR, QCM with dissipation (QCM‐D), and QCM with electrochemistry (EQCM) provide insights into chemical bonds and viscoelastic properties of conjugated layers, significant conjecture about bond types and conjugation strength is required.…”

An Electrochemical Quartz Crystal Microbalance Multisensor System Based on Phthalocyanine Nanostructured Films: Discrimination of Musts

“…QCMs can also work in an aqueous environment and they have been able to detect a variety of substances in solution [ 29 , 30 ]. However, only few examples of electronic tongues based on QCM sensors for the analysis of liquids have been reported [ 31 , 32 , 33 ].…”

“…Apart from their sub-nanogram sensitivity, another possible advantage of QCM sensors for the analysis of liquids, is that the same device can be used to obtain simultaneously mass changes and electrochemical signals. For this reason, the Electrochemical Quartz Crystal Microbalance (EQCM) has become a well-established technique for the investigation of mass changes associated with electrochemical surface processes such as adsorption of enzymes [ 43 ], electrodeposition [ 44 ], electropolymerization [ 45 ], ion insertion [ 46 ] or redox processes [ 33 ]. In this way, EQCM can provide higher amounts of information about a sample than electrochemistry or mass measurements performed separately [ 33 , 47 , 48 ].…”

“…EQCM sensors covered with phthalocyanines have been successfully used to analyze phenols present in wines [ 33 ]. The reason for their success is that phthalocyanines show electrocatalytic properties towards a variety of analytes including phenols [ 33 , 49 , 50 ].…”

“…EQCM sensors covered with phthalocyanines have been successfully used to analyze phenols present in wines [ 33 ]. The reason for their success is that phthalocyanines show electrocatalytic properties towards a variety of analytes including phenols [ 33 , 49 , 50 ]. In addition, nanostructured electrodes based on phthalocyanines can be prepared by electrodeposition [ 40 ], the Langmuir-Blodgett (LB) [ 35 , 51 ] or the Layer by Layer (LbL) technique [ 52 , 53 , 54 ] on different substrates such as indium tin oxide (ITO) or platinum.…”