缩水甘油醚
高分子化学
Zeta电位
纳米凝胶
乙二醇
透明质酸
微乳液
共价键
化学
纳米颗粒
肿胀 的
胺气处理
生物高聚物
聚电解质
环氧氯丙烷
羧酸
材料科学
有机化学
药物输送
聚合物
肺表面活性物质
环氧树脂
双酚A
纳米技术
生物化学
复合材料
生物
遗传学
作者
Sheila Maiz–Fernández,Leyre Pérez‐Álvarez,Raúl Pérez González,Virginia Sáez-Martínez,Jesica Ruiz Pérez,José Luis Vilas
出处
期刊:Polymers
[MDPI AG]
日期:2019-04-24
卷期号:11 (4): 742-742
被引量:31
标识
DOI:10.3390/polym11040742
摘要
Stable hyaluronic acid nanogels were obtained following the water-in-oil microemulsion method by covalent crosslinking with three biocompatible crosslinking agents: Divinyl sulfone, 1,4-butanediol diglycidyl ether (BDDE), and poly(ethylene glycol) bis(amine). All nanoparticles showed a pH-sensitive swelling behavior, according to the pKa value of hyaluronic acid, as a consequence of the ionization of the carboxylic moieties, as it was corroborated by zeta potential measurements. QELS studies were carried out to study the influence of the chemical structure of the crosslinking agents on the particle size of the obtained nanogels. In addition, the effect of the molecular weight of the biopolymer and the degree of crosslinking on the nanogels dimensions was also evaluated for BDDE crosslinked nanoparticles, which showed the highest pH-responsive response.
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