1. An apparatus, comprising: an electrode interface; a conductive trace in electrical communication with the electrode interface; an insulating layer disposed around the conductive trace and disposed around at least a portion of the electrode interface; wherein the electrode interface, the conductive trace, and the insulating layer each comprise one or more polymers, and the conductive trace further comprises a plurality of distinct conductive particles, at least a plurality of the distinct conductive particles being separated by the one or more polymers.