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聚乙二醇衍生物对氟尿苷-层状双金属氢氧化物纳米杂化物的表面修饰
发表时间:2015-02-15 浏览量:1738 下载量:450
全部作者: | 徐洁,李东祥,徐新杰,侯万国 |
作者单位: | 青岛科技大学化学与分子工程学院;山东大学胶体与界面化学教育部重点实验室 |
摘 要: | 层状双金属氢氧化物(layered double hydorxide,LDH)的表面修饰对其作为纳米药物载体时的分散性、稳定性及生物相容性具有重要意义。以氟尿苷(floxuridine,FL)插层LDH(FL-LDH)纳米杂化物为模型体系,以具伪装隐形作用的聚乙二醇衍生物聚乙二醇单甲醚癸二酸酯盐(poly(ethylene glycol) monomethyl ether-sebacate salt, MPS)为修饰剂,研究药物—LDH纳米杂化物的表面修饰作用,制备出MPS修饰的FL-LDH纳米杂化物(简记为FL-LDH-MPS),并进行表征。结果表明:表面修饰可明显改善纳米杂化物的分散稳定性和药物缓释性能。由于聚乙二醇的生物兼容性和体内循环的“隐形”功能,这种药物输运体系具有重要应用前景。 |
关 键 词: | 无机化学;层状双金属氢氧化物;聚乙二醇;氟尿苷;纳米杂化物;表面修饰 |
Title: | Surface modification of poly(ethylene glycol) derivative on floxuridine-layered double hydorxide (FL-LDH) nanohybrid |
Author: | XU Jie, LI Dongxiang, XU Xinjie, HOU Wanguo, |
Organization: | College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology Key Laboratory of Colloid and Interface Chemistry, Ministry of Education |
Abstract: | Surface modification of the layered double hydroxide (LDH) was of much importance for its stability, dispersity and biocompatibility as drug-carriers. In this paper, floxuridine (FL) intercalated LDH (FL-LDH) was modified with poly(ethylene glycol) monomethyl ether-sebacate salt (MPS). The obtained FL-LDH-MPS nanocomposites showed enhanced stability, dispersity and controlled drug release property. The obtained FL-LDH-MPS nanocomposites could have advantages as drug delivery system with controlled-release due to the biocompatible and water-soluble PEG shells with “stealth” function upon in-travenous injection. |
Key words: | inorganic chemistry; layered double hydroxide; poly(ethylene glycol); floxuridine; nanohybrid; surface modification |
发表期数: | 2015年2月第3期 |
引用格式: | 徐洁,李东祥,徐新杰,等. 聚乙二醇衍生物对氟尿苷-层状双金属氢氧化物纳米杂化物的表面修饰 [J]. 中国科技论文在线精品论文,2015,8(3):240-245. |

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