Carbon Material Hybrid Construction on an Aptasensor for Monitoring Surgical Tumors

Figure 5

(a) CEA-spiked serum sample identification on the CNH-aptamer immobilized electrode surface. Various concentrations of CEA were diluted in serum and drop cast onto anti-CEA aptamer-constructed electrode surfaces for CEA identification. A clear increase in the response was recorded for each CEA concentration. (b) Electrochemical response for CEA-spiked serum identification. The electrochemical response was increased by increasing the CEA-spiked serum concentrations. The averaged values obtained from the replicates are displayed by the error bars.

(a)

(b)