Autor según el artículo: Morsali, M; Moreno, A; Loukovitou, A; Pylypchuk, I; Sipponen, MH
Departamento: Química Analítica i Química Orgànica
Autor/es de la URV: Moreno Guerra, Adrian
Palabras clave: Amine Particles Silver nanoparticles
Resumen: 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.
Áreas temáticas: 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
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: adrian.moreno@urv.cat
Fecha de alta del registro: 2024-01-13
Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
Enlace a la fuente original: https://pubs.acs.org/doi/10.1021/acs.biomac.2c00840
Referencia al articulo segun fuente origial: Biomacromolecules. 23 (11): 4597-4606
Referencia 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 Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/
DOI del artículo: 10.1021/acs.biomac.2c00840
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2022
Tipo de publicación: Journal Publications
Repositori URV