The introduction of HM coatings on the LIG surface affects the properties of the material in different ways, see From the electrochemical behavior perspective, substantially improved electrode wetting should affect EASA increase, and, as a consequence, current densities of the studied redox process. The CV recorded for HM-coated LIG electrodes are presented in Fig. and Fig. , for the P12% and P13% samples, respectively. Both of these figures indicate that while anionic Alg and non-ionic Agar do not show a significant effect on electrochemical behavior in this redox system, when compared to bare LIG electrodes, cationic CS coatings enhanced the peak current densities significantly. Interestingly, bare P13% samples show hampered redox kinetics when compared to P12%, yet the CS-coated P13% behaves similarly to the CS-coated P12%. This is an interesting phenomenon, which might indicate that the CS-coating has some ability to negate the suboptimal LIG processing conditions, leading to altered topography and surface electrostatic interactions. Because of HM's porous structure and chemistry, the effective diffusion of solutes could be different. In addition, coulombic interactions between the hydrogel and redox species correspond to different partitioning for various HMs with different charges. The collective effect of these phenomena results in different permeability and altered electrochemical responses.