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Supramolecular assemblies of lignin into nano- and microparticles

Published online by Cambridge University Press:  10 May 2017

Mariko Ago
Affiliation:
Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Finland; mariko.ago@aalto.fi
Blaise L. Tardy
Affiliation:
Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Finland; blaise.tardy@aalto.fi
Ling Wang
Affiliation:
Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Finland; ling.wang@aalto.fi
Jiaqi Guo
Affiliation:
Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Finland; jiaqi.guo@aalto.fi
Alexey Khakalo
Affiliation:
Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Finland; alexey.khakalo@aalto.fi
Orlando J. Rojas
Affiliation:
Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Finland; orlando.rojas@aalto.fi
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Abstract

Among the most abundant biopolymers in the biosphere, lignin represents an untapped opportunity to create novel bioproducts. In this article, we discuss possibilities to synthesize nano- and microparticles by harnessing lignin’s inherent tendency to associate and to develop new material compositions and functions by controlling its capacity to assemble into supramolecular structures. Because lignin is biodegradable, antimicrobial, antioxidative, and carbon neutral, inexpensive industrial lignin streams could generate value-added particulate materials that preserve the structure, composition, and colloidal features inherent to this macromolecule. We present available routes for synthesis or isolation of lignin particles, including antisolvent and aerosol processing. Metallic and polymeric lignin particle hybrids for magnetic, antibacterial, catalytic, photonic, and other applications are also discussed. Overall, the facile formation of nano- and microparticles from lignins is expected to open new pathways toward future material development.

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Type
Research Article
Copyright
Copyright © Materials Research Society 2017 

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Supplementary material: PDF

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