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. 2020 Feb 26;20(5):1279. doi: 10.3390/s20051279

Figure 3.

Figure 3

Nyquist plot for screen-printed electrodes (SPEs) (blue line), AuNPs/SPE (red line), Si/SPE (green line), and AuNPs/Si/SPE (purple line) in 0.05 M Na-phosphate buffer solution containing 0.1 M NaCl at pH7.