To explore the seamless integration of LIG-E with fluidic channels, we combined laser-induced pyrolysis with double-layer lamination (top and bottom) of pre-patterned wax. Depending on the configuration, capillary flow can either extend through the whole sheet (vertical channels) or confine within the electrode depth along the surface (lateral channels) (Fig. ). Importantly, we found that the conductive properties remain unaffected by the wax channel interfaces (Fig. ).