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. 2023 Apr 3;13(4):453. doi: 10.3390/bios13040453

Figure 13.

Figure 13

(A) SPE modification with GQDs-FG-NF and (B) fixing the magnet to the modified SPE. Sensor mechanism: (C) addition of the analyte; (D) incubation step with the mag@MIP in the analyte solution; (E) analyte adsorption by the mag@MIP; (F) separation of the analyte-mag@MIP with the electrode magnet (GQDs-FG-NF/SPE), and (G) steps of electrochemical analysis. Reprinted with permission from Elsevier from Ref. [156].