Fig. 5 | Scientific Reports

Fig. 5

From: Dual-biased metal oxide electrolyte-gated thin-film transistors for enhanced protonation in complex biofluids

Fig. 5

Electric characteristics of DB EGTFTs in various biofluids. Transfer curve of dual-gate pH sensor in response to various pH levels for (A) PBS solutions (at 5.9, 7.2 and 8.5) and (C) artificial urine (at 4.6, 6.4 and 8.2). The VTH dynamics of dual-gate pH sensors under repetitive pH cycles in (B) PBS solutions and (D) artificial urine, where VD = 0.5 V, VTG = − 0.5–0.5 V, and VBG = 40 V.

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