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  • Sustainable Strategies in the Synthesis of Lignin Nanoparticles for the Release of Active Compounds: A Comparison.

Sustainable Strategies in the Synthesis of Lignin Nanoparticles for the Release of Active Compounds: A Comparison.

ChemSusChem (2020-07-23)
Simone Cailotto, Matteo Gigli, Massimo Bonini, Federica Rigoni, Claudia Crestini
摘要

The preparation of nanoparticles represents a powerful tool for lignin valorization, as it combines easy methodologies with high application potential. Different synthetic strategies and various lignin sources have been employed in the process. However, the great variability in the lignin structure prevents a direct comparison of the so far reported lignin nanoparticles (LNPs), especially as regards their physicochemical and functional properties. To this purpose, two green protocols, that is, solvent-antisolvent and hydrotropic, were optimized and used to generate LNPs from the same softwood kraft lignin. The nanomaterials were fully characterized to extrapolate structure/property relationships and reveal any differences in the mechanism of self-assembly. Furthermore, tests on methylene blue entrapment capacity and release behavior at two different pH values (2.0 and 7.4) evidenced a clear dependence on the LNPs characteristics and thus on the strategy adopted for their production.

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Sigma-Aldrich
2-氯-4,4,5,5-四甲基-1,3,2-二氧磷杂环戊烷, 95%
Sigma-Aldrich
对甲苯磺酸钠, 95%
Sigma-Aldrich
N-羟基-5-降冰片烯-2,3-二甲酰亚胺, 97%