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. 2017 Jul 19;11(4):044105. doi: 10.1063/1.4995257

FIG. 7.

FIG. 7.

The electrical signals of the one-aptamer-only assay and the dual-aptamer sandwich assay; (a) the electrical signals (total charges) of the one-aptamer-only assay detected by the FET for different CRP concentrations ranging from 0.625 to 10.000 mg/l. The total charges increased with CRP concentrations (N = 3). (b) The total charges of the dual-aptamer sandwich assay measured by the FET for different CRP concentrations ranging from 0.625 to 10.000 mg/l. The total charges also increased with CRP concentrations (N = 3). However, they were less than the one from the one-aptamer-only assay at the same concentration of CRP.