▎ 摘　　要

NOVELTY - The method involves providing a suspension of nanoelements in a liquid and a substrate comprising hydrophobic regions are mounted on a surface of the substrate and hydrophilic regions are mounted between the hydrophobic regions on the surface of the substrate. The hydrophilic regions forming a nanoscale or microscale pattern. The substrate is dipped into the nanoelement suspension so that the pattern of hydrophilic regions is submerged in the suspension. The substrate is withdrew out of the suspension and into air or gas above the suspension at a speed that allows evaporation of the liquid but not draining of the suspension, thus nanoelements from the suspension bind selectively to the hydrophilic regions to form nanoscale or microscale pattern of nanoelements. USE - Method for assembling nanoelements on substrate to form nanoscale or microscale pattern of nanoelements. ADVANTAGE - The directed assembly-based printing utilizes a dip-coating-based platform where diffusion effects are eliminated, and that use allows to operate at much higher withdrawal speeds that enable high throughput processes required for commercialization. The fast fluidic assembly process using dip-coating on an engineered surface is advantageous because that can assemble a wide variety of different nanoelements, on a wide variety of different substrates, and is carried out rapidly under ambient conditions. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a device for assembling nanoelements on substrate to form nanoscale or microscale pattern of nanoelements; (2) a method of preparing a patterned substrate for fast fluidic assembly of nanoelements on the substrate into a nanoscale or microscale pattern; and (3) a patterned substrate for use in fast fluidic assembly of nanoelements. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a substrate preparation for a fast fluidic assembly process.