Electrochemical sensing of dobutamine, paracetamol, amlodipine, and daclatasvir in serum based on thiourea SAMs over nano-gold particles–CNTs composite

Abstract

We report in this work a one-step approach for the formation of self-assembled monolayers (SAMs) from thiourea (TU) over gold nanoparticles dispersed in carbon nanotubes (CNTs-Aunano). The fabrication of the...

CNTs/Graphene Oxide‐Nickel Phosphate Nanocomposite‐Based Electrochemical Sensor for Detecting H2O2 in Human Serum

“…CNTs have been used in sensing applications because of their large effective surface area, and excellent electrochemical properties. [41][42][43][44][45][46][47][48][49][50] Graphene oxide (GRO) is extensively used in chemical and biosensing applications because of its significant properties such as controllable electronic provisions, surface defect density, hydrophilicity, and possession of various oxygen moieties. [51] Furthermore, GRO can easily disperse in solvents and different matrices due to the presence of oxygen functionalities.…”

“…CNTs are used to improve the thermal stability, hardness, and electrical conductivity of composites. CNTs have been used in sensing applications because of their large effective surface area, and excellent electrochemical properties [41–50] …”

A simple and low-cost electrochemical sensor based on a graphite sheet electrode modified by carboxylated multiwalled carbon nanotubes and gold nanoparticles for detection of acyclovir

“…Besides the above common techniques, electrochemical methods based on modified electrodes are very important due to their appropriate detection limits, accuracy, quick response time, ease of sample preparation, ease of the use of equipment, and low cost. [25][26][27][28][29][30][31][32][33][34][35] In electrochemical research, efficient modifiers including different metal and metal oxide nanoparticles, 36,37 carbon nanomaterials, 38 conducting polymers 39,40 and metal organic frameworks 41,42 have been developed for the modification of electrodes in order to improve the LOD, LDR and their selectivity in determining drug molecules. On the other hand, the most common modified electrodes are those carbon-based electrodes such as the glassy carbon electrode (GCE), 43 carbon paste electrode (CPE), 44 pencil graphite electrode (PGE) 45 and graphite sheet electrode (GSE).…”

“…Besides the above common techniques, electrochemical methods based on modified electrodes are very important due to their appropriate detection limits, accuracy, quick response time, ease of sample preparation, ease of the use of equipment, and low cost. 25–35…”