Author Correction: Photonic crystals with rainbow colors by centrifugation-assisted assembly of colloidal lignin nanoparticles
Jinrong Liu, Mathias Nero, Kjell Jansson, Tom Willhammar, Mika H. Sipponen

Abstract
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Taxonomy
TopicsPhotonic Crystals and Applications
Correction to: Nature Communications 10.1038/s41467-023-38819-5, published online 29 May 2023
The original version of this Article contained an error in Equation 3. The equation contained an additional root symbol and incorrectly read:
\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${n}_{{{{\rm{eff}}}}}=\sqrt{\varphi {n}_{{{{\rm{lig}}}}}+\left(1-\varphi \right){n}_{{{{\rm{air}}}}}}$$\end{document}on page 7 of the manuscript file.
The correct form of equation 3 is:
\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${n}_{{{{\rm{eff}}}}}=\varphi {n}_{{{{\rm{lig}}}}}+\left(1-\varphi \right){n}_{{{{\rm{air}}}}}$$\end{document}This has been corrected in the PDF and HTML versions of the Article.
