Author, as appears in the article.: Morsali, M; Moreno, A; Loukovitou, A; Pylypchuk, I; Sipponen, MH
Department: Química Analítica i Química Orgànica
URV's Author/s: Moreno Guerra, Adrian
Keywords: Silver nanoparticles Particles Amine
Abstract: Spherical lignin nanoparticles are emerging biobased nanomaterials, but instability and dissolution in organic solvents and aqueous alkali restrict their applicability. Here, we report the synthesis of hydroxymethylated lignin nanoparticles and their hydrothermal curing to stabilize the particles by internal cross-linking reactions. These colloidally stable particles contain a high biobased content of 97% with a tunable particle size distribution and structural stability in aqueous media (pH 3 to 12) and organic solvents such as acetone, ethanol, dimethylformamide, and tetrahydrofuran. We demonstrate that the free phenolic hydroxyl groups that are preserved in the cured particles function as efficient reducing sites for silver ions, giving rise to hybrid lignin-silver nanoparticles that can be used for quick and facile sensing of hydrogen peroxide. The stabilized lignin particles can also be directly modified using base-catalyzed reactions such as the ring-opening of cationic epoxides that render the particles with pH-dependent agglomeration and redispersion properties. Combining scalable synthesis, solvent stability, and reusability, this new class of lignin nanoparticles shows potential for its use in circular biobased nanomaterials.
Thematic Areas: Química Polymers and plastics Polymer science Medicina ii Materials chemistry Materiais Interdisciplinar Farmacia Engenharias iv Engenharias ii Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências agrárias i Ciência de alimentos Chemistry, organic Biotecnología Biomaterials Bioengineering Biochemistry & molecular biology Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: adrian.moreno@urv.cat
Record's date: 2024-09-07
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://pubs.acs.org/doi/10.1021/acs.biomac.2c00840
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Biomacromolecules. 23 (11): 4597-4606
APA: Morsali, M; Moreno, A; Loukovitou, A; Pylypchuk, I; Sipponen, MH (2022). Stabilized Lignin Nanoparticles for Versatile Hybrid and Functional Nanomaterials. Biomacromolecules, 23(11), 4597-4606. DOI: 10.1021/acs.biomac.2c00840
Article's DOI: 10.1021/acs.biomac.2c00840
Entity: Universitat Rovira i Virgili
Journal publication year: 2022
Publication Type: Journal Publications