Ultrasensitive determination of metronidazole using flower-like cobalt anchored on reduced graphene oxide nanocomposite electrochemical sensor

An efficient electrochemical sensor based on the Ce-MOF/g-C3N5 composite for the detection of nitrofurazone

“…Stability is a crucial factor for electrochemical sensors used to detect drug molecules. 49 Thus, DPV was employed to investigate the stability of the sensor based on Ce-MOF/g-C 3 N 5 . First, the GCE modified by the Ce-MOF/g-C 3 N 5 composite was constructed and stored in a refrigerator at −4 °C.…”

Review—Novel Trends in the Determination of Pharmaceutical Compounds Commonly Found in Topical Treatments using Electrochemical Sensing Approaches

“…The most outstanding results in terms of analytical performance were recorded using the sensors based on gold nanoparticle carbon nanofiber (CNF@AuNPs/GCE), flower-like cobalt anchored on reduced graphene oxide (f-Co@rGO/GCE), silver nanoparticles decorated graphene oxide (GO@AgNPs-GCE), graphene nanoplatelets and bismuth (GCE/Gr/Bi), carbon nanofibers supported with Ni−Co layered double hydroxide (CNF-NiCo-LDH/GCE), and graphene magnetite nanoparticles (GR/Fe 3 O 4 NPs/GCE). [88][89][90][91][92][93] The effectiveness of combining several modifiers is evident in achieving enhanced outcomes.…”

NanoMIPs-based electrochemical sensors for selective detection of amphetamine

“…The use of GPHOx was necessary because graphene derivatives with higher conductivity are more difficult to solubilize in aqueous medium and it would be difficult to obtain a homogeneous and stable suspension in the chitosan solution. In practice, after modifying the electrodes with GPHOx, the surface undergoes an electrochemical reduction process [33], performed by CV. After the electrochemical reduction in 0.1 M PBS of pH 7.2, an important signal intensity increasing was observed, reaching 379 μA/-391 uA, with a peak-to-peak separation of 153 mV.…”