Autor segons l'article: Morsali, M; Moreno, A; Loukovitou, A; Pylypchuk, I; Sipponen, MH
Departament: Química Analítica i Química Orgànica
Autor/s de la URV: Moreno Guerra, Adrian
Paraules clau: Amine Particles Silver nanoparticles
Resum: 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.
Àrees temàtiques: Astronomia / física Biochemistry & molecular biology Bioengineering Biomaterials Biotecnología Chemistry, organic Ciência de alimentos Ciências agrárias i Ciências biológicas i Ciências biológicas ii Ciências biológicas iii Engenharias ii Engenharias iv Farmacia Interdisciplinar Materiais Materials chemistry Medicina ii Polymer science Polymers and plastics Química
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: adrian.moreno@urv.cat
Data d'alta del registre: 2024-01-13
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://pubs.acs.org/doi/10.1021/acs.biomac.2c00840
Referència a l'article segons font original: Biomacromolecules. 23 (11): 4597-4606
Referència de l'ítem segons les normes 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
URL Document de llicència: http://repositori.urv.cat/ca/proteccio-de-dades/
DOI de l'article: 10.1021/acs.biomac.2c00840
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2022
Tipus de publicació: Journal Publications
Repositori URV