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. 2021 May 16;21(10):3467. doi: 10.3390/s21103467

Figure 6.

Figure 6

(A) Membraneless FET-type tungsten diselenide (WSe2) biosensors Reprinted with permission from ref. [19]. 2018 American Chemistry Society (B) (a) Schematic representation of the label-free MoS2 FET as a biosensor to electrically detect FGF21. (b) Optical and (c) AFM images of the MoS2 FET transistor. Inset in (c) shows the MoS2 thickness. (d) Experimental process of surface chemistry to prepare anti-FGF21 on MoS2 surface and its reaction with FGF21 Reprinted with permission from ref. [71]. 2019 Springer.