Figure 6
(a) The PPMM@PDA/PVA(1/8)@Au@IrO2 with two bending directions (X axis and Y axis). The green color represents the area where IrO2 nanoparticles are actually deposited. (b) The photographs for bending tests along the X axis and Y axis, respectively. The resulting pH-sensing slope and standard deviation as a function of bending cycles along the (c) X axis and (d) Y axis.
