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. 2015 Apr 27;15(5):9915–9927. doi: 10.3390/s150509915

Figure 2.

Figure 2

Electrochemical detection of HIV-1 virus based on direct electron transfer using Au nano dot A. Cyclic voltammogram of fabricated biosurface on an Au nanoparticle modified ITO electrode. (A) Bare Au nanoparticle modified ITO electrode; (B) fragmented Antibody; (C) HIV-1 VLPs, respectively, Schematic representation of B. the structure of gp120, C. expected electrochemical oxidation of disulfide bond and (D) Electrochemical activity of various amino acids. Figure reproduced with permission from [28], © 2013 Elsevier.