Figure 12.
For the electrochemical work by Gao et al., the labeled miRNA was hybridized to the immobilized probes; the oxidation signal was recorded upon the addition of hydrazine. Figure adapted from Elsevier B.V.: Z. Gao, and Y.H. Yu, Direct labeling microRNA with an electrocatalytic moiety and its application in ultrasensitive microRNA assays. Biosensors and Bioelectronics 22 (2007) 933–40.