Structurally Colored Thin Films Based on Acetylated Lignin Nanoparticles.

ABSTRACT: In nature, colors can originate from pigments or structural effects, with the latter producing brilliant hues through the interference of light with nanoscale structures. This study describes a feasible strategy to achieve structurally colored films based on acetylated lignin nanoparticles. Lignin nanoparticles were prepared by using membrane emulsification and subsequently self-assembled into multilayered films on silicon substrates through an evaporative process. These films exhibit vivid structural colors resulting from thin-film interference, with hues that vary with film thickness. Spectroscopic reflectance measurements and structural analysis reveal a wide range of colors spanning across the visible spectrum. The observed colors are ascribed to interference effects and could be model

SUBMITTER: Shanker R 

PROVIDER: S-EPMC12269353 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature