共 37 条
Self-assembly and emulsification of dopamine-modified hyaluronan
被引:33
作者:
Zhu, Ye
[1
]
Wang, Juanqin
[1
]
Li, Xiaojie
[1
,2
]
Zhao, Donghua
[1
]
Sun, Jianhua
[1
]
Liu, Xiaoya
[1
]
机构:
[1] Jiangnan Univ, Sch Chem & Mat Engn, Key Lab Food Colloids & Biotechnol, Minist Educ, Wuxi 214122, Jiangsu, Peoples R China
[2] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Sakai, Osaka 5998531, Japan
基金:
美国国家科学基金会;
关键词:
Hyaluronan;
Dopamine;
Self-assemble;
pH-responsive;
Pickering emulsion;
DRUG-DELIVERY;
CROSS-LINKING;
EMULSIONS;
ACID;
PH;
PARTICLES;
NANOPARTICLES;
PERFORMANCE;
COPOLYMERS;
INVERSION;
D O I:
10.1016/j.carbpol.2015.01.030
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
Dopamine modified hyaluronan (HA-DOPA) with different grafting degree were synthesized and self-assembled into nanoparticles. The effects of pH and salinity changes on the structure of the HA-DOPA nanoparticles were investigated. Nanoparticles swelled under increased pH values, and disassociation started at pH values above 6.20. At a fixed pH of 6.20, the size of the nanoparticles decreased with increased salinity, and flocculation occurred when the salt concentration was higher than 0.3 M. The emulsification performance of HA-DOPA nanoparticles at different pH values and salt concentrations demonstrated that nanoparticles with moderately swollen structures possess better emulsifying efficiency and emulsion stability. Additionally, HA-DOPA nanopartides were able to stabilize various types of oils. These results suggest that HA-DOPA nanoparticles have promising potential as Pickering emulsifiers for applications in the cosmetics, medical, and food industries. (C) 2015 Elsevier Ltd. All rights reserved.
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页码:72 / 79
页数:8
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