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. 2021 May 27;413(18):4673–4680. doi: 10.1007/s00216-021-03404-6

Fig. 4.

Fig. 4

Nyquist plots following the surface probe immobilization and target DNA recognition after PCR treatment: Bare Au electrode (black), TGA-modified Au electrode (orange), TGA/primer-modified Au electrode (blue), and after DNA elongation through PCR treatment (pink)