In the Optomec Aerosol Jet 300 Aerosol Jet, a liquid sample is atomized, creating a dense aerosol composed of droplets with diameters between approximately 1 and 5 microns. The aerosol is transported to the deposition head using an inert carrier gas am dos focused within the deposition head by an annular sheath gas. The resulting high-velocity jet is deposited onto planar and 3D substrates, creating features ranging from 10 microns to millimeters in size. The Aerosol Jet system supports a wide variety of materials, including conductive nanoparticle inks and screen-printing pastes, polymers, insulators, adhesives, etchants, and even biological matter that can be accurately deposited by the system onto non-planar and 3D substrates.