A Novel Process for the Fabrication of a Silver‐Nanoparticle‐Modified Electrode and Its Application in Nonenzymatic Glucose Sensing

Abstract

In this work, we present a novel process for fabrication of a silver‐nanoparticle‐modified electrode using silver ion implantation. This method is facile, low‐cost and environmental friendly without the use of any other chemicals. The obtained AgNPs on the electrode surface, which were free from any reagents surrounding or binding to them, showed prominent electrocatalytic activity towards the oxidation of glucose, leading to a nonenzymatic glucose sensor with a wide linear range and a detection limit of 0.5 µM. In addition, the modified electrode also exhibited acceptable reproducibility and long‐term stability.

Green synthesis of silver nanoparticles using water extract of Salvia leriifolia: Antibacterial studies and applications as catalysts in the electrochemical detection of nitrite

“…The first anodic peak (0.31 V) is attributed to the electroformation of the monolayer of Ag 2 O and the second peak (0.78 V) is attributed to the oxidation of Ag 2 O to AgO. The cathodic current peak (0.11 V) is due to the reduction of AgO to Ag 2 O . These results confirm the presence of AgNPs and their participation in the redox reaction on the electrode surface.…”

“…The cathodic current peak (0.11 V) is due to the reduction of AgO to Ag 2 O. [39][40][41] These results On the other hand, a weak and broad reduction peak of nitrite, at a potential value of −0.90 V, can be detected at the surface of bare GCE that indicates the bare GCE has no enough catalytic activity for electro-reduction of nitrite (Figure 7, curve c). After addition of 1 μM nitrite, a clear catalytic reduction peak, with increase current, appears at a potential value of −0.62 V at the surface of S.l-AgNPs/GCE (Figure 7, curve d).…”

An Antibacterial Nonenzymatic Glucose Sensor Composed of Carbon Nanotubes Decorated with Silver Nanoparticles

“…The interference caused by AA is also much less than the response of glucose. As compared with other silver based glucose sensors 32, 33, the Ag‐NPs/CNTs sensor prepared in this manuscript shows better performance in sensitivity, linear range and selectivity. The Ag‐NPs/CNTs sensor retained 91.1 % of its original sensitivity after successive monitoring for two weeks, which is comparable with many existing non‐enzymatic glucose sensors 34, 35.…”

Ag nanoparticles supported on nickel foam: a flexible 3D electrode for methanol electrocatalytic oxidation

“…On the cathodic sweep, signals were assigned to the reduction of Ag(II) to Ag(I) at the higher potential and the reduction of Ag(I) to Ag(0) at the lower potential. 43,51,52 Compared with the CV of the N-AgNPs/NF (Fig. 4, curve b) and CV N-AgNPs/ITO (Fig.…”