June 18, 2025 (Nanotech Daily) –
2025 JUN 16 (NewsRx) -- By a News Reporter-Staff News Editor at Nanotech Daily -- New research on Nanotechnology - Nanofibers is the subject of a report. According to news reporting out of Turku, Finland, by NewsRx editors, research stated, “Using cellulose nanofibrils (CNF) in packaging under humid conditions is challenging due to their hygroscopicity, which causes an efficacy-failure of coating materials. Here, inspired by nature and plant cell walls, we developed a fully bio-based aqueous dispersion coating made of CNF/ polymerized lignin, where lignin was polymerized in situ in proximity to a CNF surface in dispersion via laccase-catalyzed oxidation.”
Funders for this research include Akademi University, Business Finland Project, China Scholarship Council.
Our news journalists obtained a quote from the research from Abo Akademi University, “The polymerized lignin nanoparticles were evenly distributed on the fiber surface in CNF/ polymerized lignin dispersions, particularly in isopropyl alcohol (iPrOH) lignin fractions at a loading amount of 15 wt% and for an enzymatic polymerization of 6 h. This dispersion also demonstrated the formation of homogenous films with the highest hydrophobicity (a water contact angle of approx. 120 degrees) among all tested formulations. The iPrOH-lignin fractions outperformed other fractions in enhancing the barrier properties of the coated paperboard, i.e., a twofold reduction in the water vapor transmission rate, a 52-fold reduction in the oxygen transmission rate, and excellent grease barrier properties (KIT rating of 12).”
According to the news editors, the research concluded: “These results indicate that aqueous dispersion coatings of CNF/ polymerized lignin reveal the structure-property relationship between the decoration of the CNF surface and the performance of the coating, which are a promising sustainable approach for providing barrier properties in packaging applications.”
This research has been peer-reviewed.
For more information on this research see: In Situ Polymerization of Lignin In Cellulose Nanofibrils Aqueous Dispersion for Fully Bio-based Barrier Coating In Packaging. Cellulose, 2025. Cellulose can be contacted at: Springer, Van Godewijckstraat 30, 3311 Gz Dordrecht, Netherlands. (Springer - www.springer.com; Cellulose - http://www.springerlink.com/content/0969-0239/)
Our news journalists report that additional information may be obtained by contacting Chunlin Xu, Abo Akademi University, Faculty of Science and Engineering, Lab Nat Mat Technol, Henrikinkatu 2, Turku 20500, Finland. Additional authors for this research include Liqiu Hu, Luyao Wang, Wenyang Xu, Xiaoju Wang, Martti Toivakka and Jan Gustafsson.
The direct object identifier (DOI) for that additional information is: https://doi.org/10.1007/s10570-025-06562-3. This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation.
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