Abstract: A method for forming a conductive trace on a substrate. A metallic liquid is mixed with a solvent to produce a metallic liquid mixture. The metallic liquid mixture is stimulated to produce a colloidal suspension of discrete metallic liquid particles surrounded by the solvent. The colloidal suspension is aerosolized with a carrier gas, and passed through a nozzle to deposit the discrete metallic liquid particles onto the substrate. The deposited discrete metallic liquid particles are annealed, thereby producing the conductive trace. The conductive trace has a substantially contiguous core of the metallic liquid within a substantially non-electrically conductive solid skin that substantially bounds the liquid core.