Fig. 9: OECT-based DA sensors with advanced structural design.
From: Biomolecule sensors based on organic electrochemical transistors
a Schematic representation of the layer-by-layer nano-construction of the PEDOT:PSS/CTAB-based OECTs, and b transfer curves under different concentrations of DA. Reproduced with permission92. Copyright 2024, American Chemical Society. c Schematic diagram of FSP-OECTs for the detection of DA in vivo. d Calibration plot of ID of different DA concentrations and e selectivity test of FSP-OECT to 50 μM DA against biologically relevant electroactive species including 50 μM 3,4-dihydroxyphenylacetic acid (DOPAC), 50 μM UA, and 200 μM AA, respectively. c–e Reproduced with permission7. Copyright 2022, Wiley-VCH. f Device schematics and the fabrication steps of PEDOT:PSS spearhead gate and channel of the needle-type carbon nanoelectrodes (CNEs) OECTs, and g ID versus time curve during the incremental addition of DA. Reproduced with permission97. Copyright 2020, Springer Nature.
