A Simple Ratiometric Electrochemical Aptasensor Based on Exonuclease III-Assisted Target Recycling for Ultrasensitive Detection of Prostate Specific Antigen

<div>EIS (a) and CV (b) characteristics of different-modified electrode: (a) bare AuE, (b) AuNPs/AuE, (c) Fc-HP2/AuNPs/AuE, (d) MCH/Fc-HP2/AuNPs/AuE, (e) PSA-HP1-Exo III/MCH/Fc-HP2/AuNPs/AuE, and (f) MB-DNA/PSA-HP1-Exo III/MCH/Fc-HP2/AuNPs/AuE.</div>

Journal of Chemistry

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Figure 3

Figure 3: A Simple Ratiometric Electrochemical Aptasensor Based on Exonuclease III-Assisted Target Recycling for Ultrasensitive Detection of Prostate Specific Antigen 

Figure 3 | A Simple Ratiometric Electrochemical Aptasensor Based on Exonuclease III-Assisted Target Recycling for Ultrasensitive Detection of Prostate Specific Antigen 