|本期目录/Table of Contents|

[1]郝祖杭,袁于民.mPEG链长及分散性对mPEG-TPE胶束行为影响[J].浙江理工大学学报,2023,49-50(自科三):365-373.
 HAO Zuhang,YUAN Yumin.Effects of the chain length and dispersity of mPEG on mPEG-TPE micelle behavior[J].Journal of Zhejiang Sci-Tech University,2023,49-50(自科三):365-373.
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mPEG链长及分散性对mPEG-TPE胶束行为影响()
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浙江理工大学学报[ISSN:1673-3851/CN:33-1338/TS]

卷:
第49-50卷
期数:
2023年自科第三期
页码:
365-373
栏目:
出版日期:
2023-05-31

文章信息/Info

Title:
Effects of the chain length and dispersity of mPEG on mPEG-TPE micelle behavior
文章编号:
1673-3851 (2023) 05-0365-09
作者:
郝祖杭袁于民
1.浙江理工大学,a.材料科学与工程学院;b.智能生物材料研究所,杭州 310018;2.浙江博美生物技术有限公司,浙江嘉兴 314001
Author(s):
HAO Zuhang YUAN Yumin
1a.School of Materials Science & Engineering; 1b.Institute of Smart Biomedical Materials, Zhejiang Sci-Tech University, Hangzhou 310018, China; 2. Biomatrik Inc., Jiaxing 314001, China
关键词:
单分散聚乙二醇四苯乙烯聚集诱导发光胶束粒径抗蛋白吸附
分类号:
TQ432-2
文献标志码:
A
摘要:
为研究聚乙二醇单甲醚(mPEG)链长及分散性对其胶束的理化性质及不同介质下稳定性的影响,采用具有聚集发光特性的四苯乙烯(Tetraphenylethylene,TPE)为憎水段,合成了3种不同链长的单分散mPEG n TPE酯( n=15,23,35),以及1种多分散mPEG1000-TPE酯的双亲分子。探讨了mPEG链长及分散性的差异对mPEG-TPE胶束的临界胶束浓度(Critical micelle concentration,CMC)、粒径、荧光强度、水解速度及在牛血清白蛋白(BSA)溶液中稳定性的影响。结果表明:所合成4种mPEGTPE化合物均在水溶液中形成自组装胶束并展现出AIE特征,胶束的尺寸、CMC值及在磷酸盐缓冲液(PBS)中的水解速度,随着PEG链长的增长而增加,但荧光强度减弱,这说明胶束内核TPE之间的相互作用减弱;在BSA介质下,保持胶束稳定的时间随PEG链增长而增加,与mPEG1000-TPE胶束对比,分子量相当的单分散mPEG 23 TPE胶束在BSA溶液中能保持更长时间的稳定,展示了单分散的优势。因此,纳米载体系统在临床应用时很有必要采用单分散的PEG,以获得更好的药物递送效果。

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2022-11-22
网络出版日期:2023-01-18

作者简介: 郝祖杭(1997-),男,河南焦作,硕士研究生,主要从事聚乙二醇胶束方面的研究
通信作者: 袁于民,E-mail: yyuan@biomatrik.com

更新日期/Last Update: 2023-09-08