Silver Hexacyanoferrate (III) on a Hybrid Graphene Oxide/PAMAM Dendrimer Surface and Application as an Electrocatalyst in the Detection of Isoniazid

Abstract

The polyamidoamine dendrimer PAMAM was covalently bound to graphene oxide via amide formation between any peripheral amine group dendrimer and the carboxyl groups present in graphene oxide. This material (GOP) was characterized by different spectroscopic techniques, namely Raman Spectroscopy, X‐Ray Photoelectron Spectroscopy (XPS), Fourier Transform Infrared Spectroscopy (FT‐IR) and X‐Ray Diffraction (XRD). The hybrid material was shown to adsorb silver, that in turn complexes with hexacyanoferrate (III) ions (GOPAgH). The complexed hybrid material was electrochemically investigated using cyclic voltammetry. Some electroanalytical parameters, such as different supporting electrolytes, the supporting electrolyte concentrations, hydrogen ion concentration effects and scan rate were evaluated in order to obtain optimum responses. The GOPAgH material was successfully tested in the electrocatalytic detection of Isoniazid using a graphite paste electrode with Limits of Detection and Quantification of 5.0×10−6 mol L−1 and 1.7×10−5 mol L−1, respectively.

Behaviour of the faujasite zeolite occluded with Ti(IV) and Zr(IV) and its interaction with Nickel Hexacyanoferrate (III) : A comparative study in the voltammetric detection of isoniazid

“…The modi ed ZTiNiH and ZZrNiH graphite paste electrodes were shown to be close to the electrodes used in the electrocatalytic detection of IZN described in the literature [35][36][37][38][39][40], indicating they can be used to detect this compound.…”

A Tröger's base-linked aluminium phthalocyanine polymer for discriminative electrochemical sensing of the antibiotic isoniazid

“…4b displays the linear relation of the anode peak current (I pa ) versus scan rate (n), I pa = 1.9525n + 0.07805 (R 2 = 0.9962, I in mA, and v in V s −1 ), showing that adsorption control directs the overall oxidation of isoniazid. 42 Simultaneously, the anode peak shied toward a more positive direction (Fig. 4c).…”

Interaction of Graphene Oxide Particles and Dendrimers with Human Breast Cancer Cells by Real-Time Microscopy

“…The synthesis process and the physicochemical characterization of the materials are described in Ribeiro et al 2020; Fernandes et al 2018 and Do Carmo and Fernandes, 2017 [ 25 , 26 , 27 ].…”