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. 2019 Mar 28;10(4):222. doi: 10.3390/mi10040222

Figure 1.

Figure 1

A schematic representation of the electrochemical biosensor. After the analyte contacts a recognition element on the surface of the biosensor, physical or chemical changes yield a reaction that is transformed into an electrochemical signal. This information can be further processed to determine the concentration of the pathogen and changes in the composition of the analyte.