Bio-AgNPs-based electrochemical nanosensors for the sensitive determination of 4-nitrophenol in tomato samples: the roles of natural plant extracts in physicochemical parameters and sensing performance

Abstract

In this work, we systematically investigated and compared the electrochemical sensing performances of three electrodes modified with various bio-AgNPs toward 4-NP detection in tomato samples.

Silver nanoparticles in electrochemical immunosensing and the emergence of silver–gold galvanic exchange detection

“…Interested readers are advised to refer to the following cited references. 124–127 In summary, these studies suggest that altering the size of AgNP results in changes in the overall surface area and surface energy, which can ultimately affect their electrochemical properties.…”

An Optimized MnO2-Ag Nanocomposite-Based Sensing Platform for Determination of 4-nitrophenol in Tomato Samples: Influences of Morphological Aspect of MnO2 Nanostructures and Synergic Effect on Electrochemical Kinetic Parameters and Analytical Performance

“…This approach has not only been widely mentioned and attracted at bare screen-printed electrodes (SPEs) in particular and other commercial electrodes, in general. A series of materials have been investigated and evaluated such as metal/metal oxides (Au, 1 Ag, 2 ZnO, 3,4 Cu x O, 5 Fe x O y , 6 MoS 2 , 7 MnO 2 , [8] etc); carbonaceous materials (graphene, graphene oxides (GO), 9 carbon nanotubes, and carbon dots); conducting polymers; 10 ); metal-organic frameworks (MOFs); 13 even their composite structures (Au@Graphene, 14 MoS 2 @GO, 15,16 Ag-Fe 3 O 4 , 17 MnO 2 -graphene 18,19 ). Not an exception to that trend, both MnO 2 nanomaterials and Ag nanoparticles (AgNPs) have been used to modify electrode surfaces thanks to their unique features (low cost, high activity, nontoxicity, high electronic conductivity, biocompatibility, easy preparation, and tunable electrochemical redox chemistry).…”