“…It is considered that during the spin-coating process, the outward flow generated by centrifugal force causes supracolloidal chains to align radially. 29,39,40 We note that variations in the coating conditions, such as colloidal concentration, spinning speed, and surface hydrophilicity of the substrate, scarcely affect the orientation of supracolloidal chains. For example, 0.02 wt% and 0.03 wt% solutions of supracolloidal chains resulted in similar values of the 2D order parameter S, with values of 0.41 and 0.37, respectively, although the chains on the substrate appeared slightly denser with a higher concentration (Fig.…”