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. 2017 Apr 18;12:3171–3179. doi: 10.2147/IJN.S132776

Figure 5.

Figure 5

Sensitivity and selectivity.

Notes: (A) Dependence of the current on the concentration of Aβ sample (0.01, 0.2, 5, 50, 200, 500 and 2,000 nM). The inset shows the linear dependence of the current change on the concentration of the Aβ sample. (B) Selectivity of the sensing protocol (bar 1, Aβ monomer; bar 2, Aβ fibril; bar 3, Aβ oligomer; bar 4, BSA; bar 5, IgG and bar 6, thrombin). The concentration of the Aβ sample was 200 nM and that of BSA, IgG and thrombin was 1 μM. Ipa, oxidation current.

Abbreviations: Aβ, beta-amyloid; BSA, bovine serum albumin; IgG, immunoglobin G.