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Beilstein J. Nanotechnol. 2026, 17, 935–973, doi:10.3762/bjnano.17.66
Figure 1: Schematic overview of major electrochemical and electrical sensor geometries for ion detection. (a)...
Figure 2: Design of a water-gated field effect transistor sensor. The inner “tap water” pool acts as a refere...
Figure 3: Structure and fabrication of graphene ion-sensitive field-effect transistors (ISFETs). (a) Schemati...
Figure 4: (a) MoS2−Cys preparation using thioglycolic acid (TGA) to add carboxyl groups followed by amide cro...
Figure 5: Schematic diagram of the rGO/GSH-Au NP hybrid sensor fabrication process. (a) A layer of AET coatin...
Figure 6: Schematic representation of the fabrication of Hg(II)-IIP. Figure 6 was reproduced from [205] (© 2024 E. Shamsab...
Figure 7: Scheme of the preparation route for the NiO/PDDA-RGO composite and its electrochemical application ...
Figure 8: Schematic illustration of the dual-mode assay of arsenate based on CoOOH nanoflakes with peroxidase...
Figure 9: Initial EMF response (squares) and response after 6 months (circles) to pH for an ISE with a PDMA m...
Figure 10: IS-FET sensitivities with respect to their target ions. a) The channel current, Ids, of an Na+ IS-F...
Figure 11: Experimental setup for continuously acquiring water quality data. The ISFET array was deployed in a...
Figure 12: Summary of the properties of classified active-layer materials, highlighting their representative s...