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第 37 卷第 4 期 精 细 化 工 Vol.37, No.4
202 0 年 4 月 FINE CHEMICALS Apr. 2020
医药与日化原料
功能化硼纳米双载药复合物的制备
及其体外药物释放
*
付 梓,张雪静,朱利民
(东华大学 化学化工与生物工程学院,上海 201620)
摘要:通过耦合热氧化蚀刻与液相剥离技术制备了硼纳米片(B NSs),随后用氨基化 PEG(H 2 N-PEG-NH 2 )对
B NSs 进行改性制备了改性聚乙二醇化硼纳米片(B-PEG NSs),再以环精氨酸-甘氨酸-天冬氨酸(cRGD)三肽
为单体,1-(3-二甲氨基丙基)-3-乙基碳二亚胺盐酸盐(EDC)与 N-羟基琥珀酰亚胺(NHS)为引发剂制备了
B-PEG-cRGD 复合材料。最后,B-PEG-cRGD 与阿霉素(DOX)和热休克蛋白 90 抑制剂 17-丙烯胺基-17-去甲
氧基格尔德霉素(17AAG)共混得到 DOX-17AAG@B-PEG-cRGD 纳米载药复合物。采用透射电子显微镜(TEM)、
紫外分光光度计及动态光散射仪(DLS)对 B NSs 和载药复合物的形貌、结构进行了表征。结果表明,功能化
硼载药复合 物的流体动 力学平均直 径约为 184 nm ,具 有良 好的稳定性 。体外释药 研究表明 ,
DOX-17AAG@B-PEG-cRGD 复合物具有近红外光(NIR)和 pH 双响应性以及良好的药物缓释效果。当体外微
环境 pH=5.0 且存在 NIR 时,DOX 和 17AAG 在 72 h 内的累计释放率最高达 66.53%和 73.01%。
关键词:硼纳米片;近红外光/pH 响应;药物缓释;医药原料
中图分类号:O613.81 文献标识码:A 文章编号:1003-5214 (2020) 04-0779-07
Preparation and in vitro drug release of functionalized boron
dual drug-loaded nanocomposite
*
FU Zi, ZHANG Xuejing, ZHU Limin
(College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China)
Abstract: Boron nanosheets (B NSs) were prepared by coupling thermal oxidation etching and liquid
exfoliation technology. Then, they were modified by H 2 N-PEG-NH 2 to obtain B-PEG nanosheets (B-PEG NSs).
Subsequently, B-PEG-cRGD composite was prepared using cyclic RGD (cRGD) tripeptide as monomer,
1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS) as initiators.
Finally, DOX-17AAG@B-PEG-cRGD nano drug-loaded composite was obtained by blending B-PEG-
cRGD with doxorubicin (DOX) and heat shock protein 90 inhibitor, 17-allylamin,17-demethoxygeldanamycin
(17AAG). The structure and morphology of B NSs and DOX-17AAG@B-PEG-cRGD composite were
characterized by transmission electron microscopy (TEM), ultraviolet spectrophotometer and dynamic light
scattering (DLS). The results show that DOX-17AAG@B-PEG-cRGD composite has good stability with a
hydrodynamic average diameter of about 184 nm. The in vitro drug release studies reveal that the composite
has near-infrared light (NIR) and pH double responsiveness, as well as exhibits good drug sustained release
effect. When the in vitro drug release experiment was carried out at pH=5.0 and NIR irradiation for 72 h,
the cumulative release rates of DOX and 17AAG were up to 66.53% and 73.01%, respectively.
Key words: boron nanosheets; near-infrared light/pH response; drug sustained release; drug materials
癌症是一种严重危害人类健康和生命的疾病, 面临一些不可避免的毒性及自身生物利用度低等问
临床研究表明:传统化疗药物由于特异性差且经常 题,使其临床应用受到很大限制。所以,控释靶向
收稿日期:2019-09-06; 定用日期:2019-11-22; DOI: 10.13550/j.jxhg.20190851
基金项目:上海市科学技术委员会国际资助项目(16410723700);生物医用纺织材料“111 工程”中国教育部(B07024)
作者简介:付 梓(1995—),女,硕士生,E-mail:fuzi960203@163.com。联系人:朱利民(1960—),男,教授,E-mail:lzhu@dhu.edu.cn。