Systems and methods of optimizing network transaction traffic originating at a mobile device are provided. The ink advantageously exhibits reduced intercolor bleed when printed, for example, on plain paper. Potential deleterious reaction of the boron carbide with silicon during infiltration is suppressed by alloying or dissolving boron into the silicon prior to contact of the silicon infiltrant with the boron carbide. The lid has a tab that locks the contents securely within the container. The external electrodes have a width W2 and are connected to the extraction electrodes at the first side surface.