Photo-cross-linked and pH-Sensitive Biodegradable Micelles for Doxorubicin Delivery
文献类型：期刊论文
| 作者 | Chen, J; Ouyang, J; Kong, JM; Zhong, W; Xing, MM |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2013 |
| 卷号 | 5期号:8页码:3108-3117 |
| 关键词 | cross-linked micelles pH sensitive intracellular drug delivery poly(ethylene glycol)-hyperbranched poly(beta-aminoester)s doxorubicin real-time in situ fluorescence microscopy |
| 英文摘要 | Cross-linked polymeric micelles have gained increasing research interest in the past decade due to the instability of existing polymeric micelles when used in vivo. In this study, we reported a series of covalently cross-linked pH-sensitive biodegradable micelles based on the poly(ethylene glycol)-hyperbranched poly(beta-aminoester)s with acrylate group terminals (PEG-HBPAE-A) copolymers for intracellular delivery of doxorubicin (DOX). PEG-HBPAE-A can be self-assembled to form micellar nanoparticles in aqueous solution with diameters of approximately 160 nm. The non-cross-linked micelles (NCLMs) were cross-linked upon UV irradiation to form cross-linked micelles (CLMs). H-1 NMR, FT-IR and dynamic light scattering (DLS) were utilized to investigate the process of the UV cross-linking and the. stability of CLMs. The results showed the significantly enhanced stability for CLMs in comparison to NCLMs. pH sensitivity of CLMs and NCLMs were also estimated by DLS. In vitro drug release studies confirmed that DOX release from DOX-loaded CLMs was greatly inhibited upon the neutral pH environment, whereas DOX underwent faster release in acidic conditions. MTT assays showed that DOX-loaded micelles had a similar inhibition rate for HepG-2 and MCF-7 cell lines compared with free DOX, whereas the blank CLMs and NCLMs showed very low c-ytotoxicity. Laser scanning confocal microscopy and real-time in situ fluorescence microscopy were exploited to investigate drug uptake in cells and drug distribution in the interior of cells. These results showed a promising nanocarrier for intracellular DOX delivery with great potential for cancer therapy. |
| 学科主题 | Science & Technology - Other Topics; Materials Science |
| 收录类别 | SCI |
| WOS记录号 | WOS:000318205000039 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/224224]  |
| 专题 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Chen, J,Ouyang, J,Kong, JM,et al. Photo-cross-linked and pH-Sensitive Biodegradable Micelles for Doxorubicin Delivery[J]. ACS APPLIED MATERIALS & INTERFACES,2013,5(8):3108-3117. |
| APA | Chen, J,Ouyang, J,Kong, JM,Zhong, W,&Xing, MM.(2013).Photo-cross-linked and pH-Sensitive Biodegradable Micelles for Doxorubicin Delivery.ACS APPLIED MATERIALS & INTERFACES,5(8),3108-3117. |
| MLA | Chen, J,et al."Photo-cross-linked and pH-Sensitive Biodegradable Micelles for Doxorubicin Delivery".ACS APPLIED MATERIALS & INTERFACES 5.8(2013):3108-3117. |
入库方式： OAI收割
来源：高能物理研究所
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