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. 2022 Jul 27;12(8):574. doi: 10.3390/bios12080574

Figure 3.

Figure 3

Fabrication flow of aptasensor. (a) Screen printing of electrodes, (b) immobilization of the aptamers using a self-assembled-monolayer, (c) final aptasensor cover by a PDMS chamber, and (d) testing of the performance of the aptasensor by using [Fe (CN)6]3−/4− as an electrolyte.