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. 2022 Feb 2;7(6):5176–5189. doi: 10.1021/acsomega.1c06098

Figure 4.

Figure 4

EDX spectra of the electrode and high-magnification FESEM images. (a) EDX spectrum of the bare electrode with the scanning area of the FESEM shown in the inset (b). (c) EDX spectrum of the streptavidin-coated electrode with the scanning area of FESEM shown in inset (d).