Skip to main content
. 2020 Apr 3;20(7):2014. doi: 10.3390/s20072014

Figure 3.

Figure 3

Selected examples of sandwich immunosensors based on electroactive label conjugates. (A) Schematic illustration of Au electrode modification using the DNA nano-pyramids (DPs) and ferrocene-labelled anti-IgG and Uv-vis spectra of ferrocenecarboxylic acid and anti-IgG, FeC-anti-IgG (reprinted with permission from Yuan et al. [43]). (B) Scheme of gold screen-printed sensor modification using mercaptophenyl boronic acid self-assembled monolayers and ferrocene-tagged anti-glycated haemoglobin antibodies (reprinted with permission from Chopra et al. [44]). (C) Scheme of the fabrication of the sandwich immunosensor based on graphene/gold nanoparticle composite and ferrocene-labelled secondary antibodies (reprinted with permission from Wang et al. [45]). (D) Schematic illustration of screen-printed graphene electrode modification using anthraquinone-labelled, C-reactive, protein-specific antibodies (reprinted with permission from Jampasa et al. [46].