Preparation of cellulose-based nanoparticles via electrostatic self-assembly for the pH-responsive delivery of astaxanthin
文献类型： 外文期刊
作者： Gan, Miaoyu 1 ; Cao, Ailing 3 ; Cai, Luyun 1 ; Xiang, Xia 5 ; Li, Jian 6 ; Luan, Qian 1 ;
作者机构： 1.Zhejiang Univ, Ningbo Innovat Ctr, Ningbo 315100, Peoples R China
2.Zhejiang Univ, Polytech Inst, Hangzhou 310015, Peoples R China
3.Hangzhou Customs, Silk Inspect Ctr, Hangzhou 310063, Peoples R China
4.NingboTech Univ, Coll Biol & Chem Engn, Ningbo 315100, Peoples R China
5.Chinese Acad Agr Sci, Oil Crops Res Inst, Wuhan 430062, Peoples R China
6.Ningbo Luming Biotechnol Co Ltd, Ningbo 315100, Peoples R China
关键词： Astaxanthin; Cellulose nanofibers; Nanoparticles; pH-responsive; Controlled release
期刊名称：FOOD CHEMISTRY （ 影响因子：9.8； 五年影响因子：9.7 ）
ISSN： 0308-8146
年卷期： 2025 年 463 卷
页码：
收录情况： SCI
摘要： Oral administration of astaxanthin (AST), a potent antioxidant, is limited owing to its low solubility, physicochemical stability, and bioavailability. This study developed pH-responsive nanocarriers by the electrostatic selfassembly of 2,2,6,6-tetramethylpiperidine-1-oxyradical (TEMPO)-oxidized cellulose nanofibers (TCNFs) and chitosan (CS) to enhance the intestinal delivery of AST. The TCNF/CS@AST nanoparticles were optimized through single-factor experiments and Box-Behnken design, subsequently overcoming the hydrophobicity of AST and demonstrating improved stability against environmental stressors and controlled release in the intestinal environment. Transmission electron microscopy confirmed the near-spherical shape of these nanoparticles, with an average hydrodynamic diameter of 64 nm. TCNF/CS@AST enhanced the antioxidant effectiveness of AST after digestion and in lipopolysaccharide-stimulated RAW 264.7 cells while demonstrating good cellular compatibility. These nanoparticles present a promising strategy for the oral delivery of hydrophobic bioactive compounds orally, with potential applications in precision nutrition.
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