The electro-catalytic activity of nanosphere strontium doped zinc oxide with rGO layers screen-printed carbon electrode for the sensing of chloramphenicol

Past and Present of Electrochemical Sensors and Methods for Amphenicol Antibiotic Analysis

“…Thus, for example, in the first approach a thin film was formed by dropping an ethanolic graphene nanoflakes dispersion [ 50 ], a polydopamine functionalized vapor-grown carbon fiber composite slurry [ 94 ], DMF suspension of Co 3 O 4 @rGO [ 58 ] or of graphene/copper phtalocyanine [ 62 ], a solution containing gold nanoflowers, N-hydroxysuccinimide and graphene oxide [ 107 ], a dispersion in DMF of the nanocomposite carbon nanotubes/ethylene diamine/gold nanoparticles [ 118 ], Gd 2 (MoO 4 ) 3 @rG slurry in isopropyl alcohol and Milli-Q water [ 57 ], ZnWO 4 nanowires [ 90 ] or GO/PdNPs [ 66 ] ethanolic suspension, dispersion of Eu 2 O 3 NPs@rGO in water:ethanol [ 111 ] or of Fe/NC in deionized water:isopropyl alcohol:Nafion [ 88 ] on the electrode surface. This step was followed by drying in ambient conditions [ 50 , 57 , 65 , 66 , 88 , 94 , 105 , 107 , 111 , 113 ], at higher temperatures [ 59 , 61 , 84 , 112 ] or under vacuum [ 62 ].…”

“…If the polymeric material is chemically synthetized, then its composition and the amount (that depends on the concentration and the volume of the suspension) loaded on the electrode surface must be optimized [ 74 , 103 ]. Similarly, when the electrodes were covered with various other simple or hybrid materials the composition of the composite [ 66 ] as well as the quantity of the modifier at the sensor surface were studied in order to establish the best conditions for the amphenicol quantification [ 51 , 55 , 61 , 67 , 72 , 89 , 93 , 111 , 112 , 117 , 118 ].…”

Intertwined Carbon Nanotubes and Ag Nanowires Constructed by Simple Solution Blending as Sensitive and Stable Chloramphenicol Sensors

“…Conventionally, carbon nanomaterials (carbon nanotubes (CNTs), graphene and its derivatives), metal/metal oxide nanomaterials, and their nanocomposites have proven effective for promoting sensing performances towards CAP detection [ 24 , 25 , 26 ]. Using CNTs and metal nanoparticles (NPs) hybridized nanocomposites as the electrode is a common approach.…”

“…The nucleation of AuNPs on c-CNTs was formed in situ through the reduction of HAuCl 4 by NaBH 4 , and the MIP film was coated onto the surface of c-CNTs/AuNPs/GCE using the thermal polymerization method. Besides CNTs, graphene is an alternative to the fabrication of carbon/metal nanocomposites and carbon/metal oxide nanocomposites [ 24 , 29 , 30 , 31 , 32 ]. Selvi et al, synthesized zinc oxide with reduced graphene oxide (ZnO/rGO) via a hydrothermal method to propose a CAP sensor with a linear range of 0.19–2857.3 μM and a detection limit of 0.13 μM [ 24 ].…”

“…Besides CNTs, graphene is an alternative to the fabrication of carbon/metal nanocomposites and carbon/metal oxide nanocomposites [ 24 , 29 , 30 , 31 , 32 ]. Selvi et al, synthesized zinc oxide with reduced graphene oxide (ZnO/rGO) via a hydrothermal method to propose a CAP sensor with a linear range of 0.19–2857.3 μM and a detection limit of 0.13 μM [ 24 ]. Borowiec et al, developed a CAP sensor design based on an N-doped graphene/AuNPs hybrid structure, showing an excellent performance with a linear range of 2.0–80.0 μM and a low detection limit of 0.59 μM [ 33 ].…”