“…For example, FDM 3D printing displays the most widely observed surface phenomena/defects, such as the ''staircase effect,'' which is more noticeable for oblique and curved surfaces. 16,17 Though premature, these surface defects displayed potential as scaffolds/templates for regulating the deposition of anisotropic nanoparticles and biomolecules from their solutions. 18 For the small-area deposition of NPs on patterned templates (e.g., grooves, microchannels, trenches, and pillars), fluidmediated deposition techniques, including dip coating, spin coating, droplet casting, and microfluidic approach, have been studied.…”