Figure8. (A)Schematic diagram of CP/Ni/Au paper-based electrode preparation process and metal deposition.[94] (B)Schematic diagram of the preparation process of Ni-paper-MnO2 paper-based electrode.[95] (C)Schematic diagram of the manufacturing process of vertically layered Au-Paper electrode in a single sheet of paper and its corresponding. (D)Optical photographs. (E)MnO2-Au-Paper electrode preparation process.[96] (F)Schematic diagram of the preparation of three-layer Au-paper interdigital electrodes in a single sheet.[97] (G)Schematic diagram of series and parallel connection of vertical multilayer Au-Paper electrodes in a single sheet and their corresponding electrochemical properties.[98]