Transformation of lignin and lignocellulose into nanoparticles: Structure-property relationship and applications
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School of Chemical Engineering |
Doctoral thesis (article-based)
| Defence date: 2021-04-22
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Authors
Date
2021
Major/Subject
Mcode
Degree programme
Language
en
Pages
72 + app. 160
Series
Aalto University publication series DOCTORAL DISSERTATIONS, 36/2021
Abstract
Lignin, a heterogenous and complex aromatic polymer, is known as a recalcitrant product from pulp & paper industry with limited applicability but recent advances showed that it can be valorized via its transformation into water dispersible particles. The objective of the doctoral thesis work was to produce colloidal lignin particles (CLPs) from various lignin sources, including two technical lignins and a residue from bioethanol production, and to explore new potential applications for these particles. Spherical CLPs were produced following the nanoprecipitation method in which lignin, dissolved in an organic sol-vent, is poured into water, acting as a non-solvent. In order to study the effect of the molecular weight on the particle size of CLPs, oxidative polymerization of kraft lignin with laccases and solvent fractionation of soda lignin were performed. Two solvents (tetrahydrofuran and acetone) were utilized to produce the CLPs and resulted in different particle sizes. The surface properties of CLPs were modified by adsorption of proteins or polymers for broadened and more efficient use in applications. CLPs coated with proteins were utilized for adhesives of soft materials with biomedical purposes in mind. Cationic CLPs were prepared by adsorption of cationic lignin and utilized to agglomerate cowpea chlorotic mottle viruses for facilitation of water purification processes. Ecotoxicity evaluation of CLPs from soda and hydrolysis lignins, indicated that they display lower toxicity than metallic nanoparticles that are used for similar applications. Controlled combination of different lignin materials within cellulose nanofibrils (CNFs) or cellulose nanocrystals (CNCs) was studied to produce potential materials for bioactive packaging with improved mechanical properties, and with good anti-UV and antioxidant properties. The addition of crude lignin or CLPs within CNFs or CNCs films increased the under-standing about the impact of the lignin molecular and supramolecular structures on the antioxidant activities of the composite films. Lignocellulose nanofibrils (LCNFs) were obtained after a solvent fractionation of a recalcitrant hydrolysis lignin from biorefinery. The films produced by partial substitution of CNFs by LCNFs displayed competitive oxygen barrier properties than other plastics. The results presented in this thesis will contribute to increase the understanding about colloidal lignin and help the further developments of lignin-based materials for medical or environmental applications.Description
Supervising professor
Österberg, Monika, Prof., Department of Bioproducts and Biosystems, Aalto University, FinlandThesis advisor
Österberg, Monika, Prof., Aalto University, FinlandSipponen, Mika, Assoc. Prof., Stockholm University, Sweden
Keywords
lignin nanoparticles, nanocellulose, structural analysis, virus removal, composites
Other note
Parts
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[Publication 1]: Maija-Liisa Mattinen; Guillaume Riviere; Alexander Henn; Robertus Wahyu N. Nugroho; Timo Leskinen; Outi Nivala; Juan José Valle-Delgado; Mauri A. Kostiainen; Monika Österberg. 2018. Colloidal Lignin Particles as Adhesives for soft Materials. MDPI. Nanomaterials, volume 8, issue 12, pages 1001. 2079-4991.
Full text in Acris/Aaltodoc: http://urn.fi/URN:NBN:fi:aalto-201901141201DOI: 10.3390/nano8121001 View at publisher
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[Publication 2]: Muhammad Farooq; Tao Zou, Guillaume Riviere; Mika H. Sipponen; Monika Österberg. 2019. Strong, Ductile, and Waterproof Cellulose Nanofibril Composite Films with Colloidal Lignin Particles. ACS Publications. Biomacromolecules, volume 20, issue 2, pages 693-704.
Full text in Acris/Aaltodoc: http://urn.fi/URN:NBN:fi:aalto-201902251931DOI: 10.1021/acs.biomac.8b01364 View at publisher
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[Publication 3]: Guillaume N. Rivière; Antti Korpi; Mika Henrikki Sipponen; Tao Zou; Mauri A. Kostiainen; Monika Österberg. 2020. Agglomeration of Viruses by Cationic Lignin Particles for Facilitated Water Purification. ACS Sustainable Chemistry & Engineering, volume 8, issue 10, pages 4167- 4177.
Full text in Acris/Aaltodoc: http://urn.fi/URN:NBN:fi:aalto-202006013468DOI: 10.1021/acssuschemeng.9b06915 View at publisher
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[Publication 4]: Guillaume N. Rivière; Florian Pion; Muhammad Farooq; Mika H. Sippo- nen; Hanna Koivula; Thangavelu Jayabalan; Pascal Pandard; Guy Marlair; Xun Liao; Stéphanie Baumberger; Monika Österberg. 2021. Toward waste valorization by converting bioethanol production residues into nanoparticles and nanocomposite films. Sustainable Materials and Technologies, volume 28, issue July 2021, pages e00269.
Full text in Acris/Aaltodoc: http://urn.fi/URN:NBN:fi:aalto-202103222421DOI: 10.1016/j.susmat.2021.e00269 View at publisher
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[Publication 5]: Elise Gerbin; Guillaume N. Rivière; Laurence Foulon; Yves-Michel Frapart; Betty Cottyn; Miguel Pernes; Carlos Marcuello; Blandine Godon; Angélique Gainvors-Claisse; David Crônier; Amel Majira; Monika Österberg; Bernard Kurek; Stéphanie Baumberger; Véronique Aguié-Béghin. 2021. Tuning the functional properties of lignocellulosic films by controlling the molecular and supramolecular structure of lignin. International Journal of Bio Biological Macromolecules. Accepted for publication on 14 March 2021.
DOI: 10.1016/j.ijbiomac.2021.03.081 View at publisher