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Enzymatic crosslink...
Enzymatic crosslinking of lignin nanoparticles and nanocellulose in cryogels improves adsorption of pharmaceutical pollutants
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- Agustin, Melissa B. (författare)
- VTT Technical Research Centre of Finland Ltd., P.O. Box 1000, FI-02044 VTT, Finland, P.O. Box 1000; Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 66, FI-00014, Helsinki, Finland, P.O. Box 66
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- Lahtinen, Maarit H. (författare)
- Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 66, FI-00014, Helsinki, Finland, P.O. Box 66
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- Kemell, Marianna (författare)
- Department of Chemistry, Faculty of Science, University of Helsinki, P.O. Box 55, FI-00014, Helsinki, Finland, P.O. Box 55
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- Oliaei, Erfan, 1991- (författare)
- KTH,Biokompositer,Wallenberg Wood Science Center
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- Mikkonen, Kirsi S. (författare)
- Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 66, FI-00014, Helsinki, Finland, P.O. Box 66; Helsinki Institute of Sustainability Science, University of Helsinki, P.O. Box 65, FI-00014, Helsinki, Finland, P.O. Box 65
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- Grönqvist, Stina (författare)
- VTT Technical Research Centre of Finland Ltd., P.O. Box 1000, FI-02044 VTT, Finland, P.O. Box 1000
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- Lehtonen, Mari (författare)
- Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 66, FI-00014, Helsinki, Finland, P.O. Box 66
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VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 VTT, Finland, P.O. Box 1000; Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 66, FI-00014, Helsinki, Finland, P.O. Box 66 Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 66, FI-00014, Helsinki, Finland, P.O. Box 66 (creator_code:org_t)
- Elsevier BV, 2024
- 2024
- Engelska.
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Ingår i: International Journal of Biological Macromolecules. - : Elsevier BV. - 0141-8130 .- 1879-0003. ; 266
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Pharmaceuticals, designed for treating diseases, ironically endanger humans and aquatic ecosystems as pollutants. Adsorption-based wastewater treatment could address this problem, however, creating efficient adsorbents remains a challenge. Recent efforts have shifted towards sustainable bio-based adsorbents. Here, cryogels from lignin-containing cellulose nanofibrils (LCNF) and lignin nanoparticles (LNPs) were explored as pharmaceuticals adsorbents. An enzyme-based approach using laccase was used for crosslinking instead of fossil-based chemical modification. The impact of laccase treatment on LNPs alone produced surface-crosslinked water-insoluble LNPs with preserved morphology and a hemicellulose-rich, water-soluble LNP fraction. The water-insoluble LNPs displayed a significant increase in adsorption capacity, up to 140 % and 400 % for neutral and cationic drugs, respectively. The crosslinked cryogel prepared by one-pot incubation of LNPs, LCNF and laccase showed significantly higher adsorption capacities for various pharmaceuticals in a multi-component system than pure LCNF or unmodified cryogels. The crosslinking minimized the leaching of LNPs in water, signifying enhanced binding between LNPs and LCNF. In real wastewater, the laccase-modified cryogel displayed 8–44 % removal for cationic pharmaceuticals. Overall, laccase treatment facilitated the production of bio-based adsorbents by improving the deposition of LNPs to LCNF. Finally, this work introduces a sustainable approach for engineering adsorbents, while aligning with global sustainability goals.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Nyckelord
- Adsorbents
- Laccase
- Lignin nanoparticles
- Lignin-containing cellulose nanofibrils
- Pharmaceutical pollutants
- Wastewater treatment
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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