Electropolymerized Materials for Biosensors

Voltammetric Sensor for Doxorubicin Determination Based on Self-Assembled DNA-Polyphenothiazine Composite

“…This partially compensates for exhausting pH sensitivity of the response mentioned for the analogs studied. Similar trends were discussed in the application of phenothiazine dyes for mediation of the oxidation of small molecules (see reviews [ 31 , 36 , 58 ]).…”

“…These changes were observed until the 25 th cycle, after which the currents started decreasing due to blocking the GCE surface with the polymerization products, which complicated access of the monomers to the electrode interface. Such non-regular changes in the peak currents are typical for the electropolymerization of the phenothiazine and phenoxazine derivatives [ 58 , 59 ]. The dependence of the oxidation/reduction peak currents on the number of electropolymerization cycles is presented in Figure 2 b.…”

“…Diaminated derivatives demonstrated more complicated voltammograms with the peaks of monomeric and polymeric forms comparable in height. Structurally relative thionine and azure dyes exerted the activity in electropolymerization sensitive to the steric loading of the amino groups [ 29 , 32 , 33 , 37 , 58 ]. Cyclic voltammograms of Azure A and Azure B demonstrated similar broad peaks of the polymer accumulation but the quantities of appropriate products assessed from the currents were significantly lower.…”

Copper nanoparticles/polyaniline/molybdenum disulfide composite as a nonenzymatic electrochemical glucose sensor

“…“According to the World Health Organization diabetes is a leading cause of blindness, kidney failure, heart attacks, strokes, and lower limb amputation” [ 4 ]. These associated health risks have led to an emerging interest in the advancement of straightforward early diagnosis and treatment techniques for diabetes mellitus [ 5 ]. To this end, researchers have gained considerable interest in electrochemical glucose sensors, because of their cost effectiveness, high sensitivity, high stability, and ease of handling during experiments [ [6] , [7] , [8] , [9] ], Due to these advantages, highly-sensitive glucose sensors are used in diverse fields, such as medical diagnostics [ 10 ], agro-food technology [ 11 ], and pharmaceuticals [ 12 ].…”

A “Clickable” Electrodeposited Polymer Films Based on 3‐Ethynylthiophene for the Covalent Immobilization of Proteins. Application to a Label‐free Electrochemical Immunosensor for Escherichia Coli and Staphylococcus Aureus Determination

“…Nowadays, electrochemical polymerization has attracted high attention in electrode modification due to a number of obvious advantages such as: wide variation of the electrode size and shape; compatibility with the format of microdevice; easy control of the deposited mass and coating thickness by variation of the number of potential cycles; satisfactory repeatability and simplicity of the electrode surface regeneration [13]. Taking into account the mechanism of CuAAC [14], one of the most attractive and promising monomers for the creation of "clickable" electroconductive coatings on the electrode surface is 3-ethynylthiophene (3-Eth).…”