The ultrasonic electropolymerization of an 5-[o-(4-bromine amyloxy)phenyl]-10,15,20-triphenylporphrin (o-BrPETPP) film electrode and its electrocatalytic properties to dopamine oxidation in aqueous solution

Palladium nanoclusters-coated polyfuran as a novel sensor for catecholamine neurotransmitters and paracetamol

“…This is possibly due to quick mass transfer of the analyte molecules towards electrode surface from bulk solutions and/or fast electron transfer process of electrochemical oxidation of the analyte molecule at the interface of the electrode surface and the solutions [64,65]. These results are consistent with recent publications [66,67]. Furthermore, D app values increase in the following order: electrode (II) < electrode (I) < electrode (V) < electrode (III) which is in consistence with the cyclic voltammetric results.…”

Electropolymerization of graphene and 5-[o-(4-bromine amyloxy) phenyl] -10,15,20-triphenylporphrin (o-BrPETPP) composite film electrode for the electrocatalytic oxidation of indirubin

“…1. It can be seen that steadily increased oxidation currents are observed with the increase of scanning cycles, indicating that the electropolymerization occurred under the experimental conditions [17]. However, the first curve of the GO/GCE shows a large cathodic current peak at À1.0 V with a starting potential of À0.75 V (Fig.…”

“…The electrical properties of porphyrin film are based on their unique structure with conjugated and highly delocalized p-bonds, thus, the electropolymerization degree is crucial to its conductivity. The film electrode prepared with five cycles shows the optimum properties and is used in the latter experiments [17].…”

“…In particular, it was shown that porphyrins could be electropolymerized as big ring compounds and then used in the electroanalysis of electroactive agents [15,16]. In our previous work [17], the electrochemical polymerization of 5-[o-(4-Bromine amyloxy) phenyl]-10, 15,20-triphenylporphrin (o-BrPETPP) on the glassy carbon electrode under ultrasonic irradiation and the electrochemical behavior of dopamine on the prepared o-BrPETPP film electrode were reported. Considering the respective properties of graphene and porphyrins, their composite film may exhibit unique electrochemical performances to the redox reaction of indirubin.…”