Sequential electrochemical fabrication of an overoxidized polythiophene/graphene/Ag nanocomposite-modified pencil graphite electrode for highly sensitive electrochemical determination of bisphenol A

A highly sensitive electrochemical sensor based on poly(alizarin red)/gold nanoflowers/molybdenum disulfide composite for the detection of methotrexate

Polyaniline/Graphitized Carboxylated Multi-Walled Carbon Nanotube Composite Electrode for Highly Sensitive Electrochemical Detection of Pb2+ in Seawater

In this study, an electrochemical sensor based on a graphitized carboxylated multi-walled carbon nanotube/polyaniline (G-COOH-MWCNTs/PANI) composite was developed for the highly sensitive detection of Pb2+ in seawater. A G-COOH-MWCNTs/PANI composite dispersion was prepared via a solution blending method and subsequentl...

Voltammetric determination of epinine using carbon paste electrode modified by ZnO/Al2O3 nanocomposite

We created a ZnO/Al2O3 nanocomposite and used it to modify a carbon paste electrode (ZAO/CPE) for epinine (EPNN) electro-oxidation, as EPNN is a sensitive electroactive material. The results showed a significant improvement in the electron-transfer reaction rate and catalytic performance of the as-produced ZnO/Al2O3 na...

Electrochemical sensing of sildenafil in pharmaceutical formulations using an (S,N)-doped reduced graphene oxide-modified electrode

In this work, (S,N)-co-doped reduced graphene oxide ((S,N)-rGO) was successfully synthesized via thermal treatment and thoroughly characterized by X-ray diffraction, high-resolution transmission electron microscopy, elemental mapping, photoluminescence, and Raman spectroscopy, confirming the successful incorporation of...

Synergistically enhanced electrochemical sensor based on a covalent organic framework/carbon nanotube composite for 4-nitrophenol detection.

An advanced carbon/bismuth oxide nanoparticle-based filament for multifunctional 3D-printed electrochemical sensors toward paracetamol and lead in pharmaceutical, clinical, and environmental electroanalysis

3D printing offers a powerful, scalable approach to fabricating low-cost, high-performance electrochemical sensors for pharmaceutical and bioanalytical applications. We report the development of a 3D-printed graphite/polylactic acid (G/PLA) conductive composite electrode modified with bismuth oxide nanoparticles (Bi2O3...