博士生导师
硕士生导师
教师拼音名称：lidongxiang
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学历：博士研究生
学位：理学博士
毕业院校：山东大学
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关键字：Layered double hydroxides (LDHs); Poly(ethylene glycol); Surface grafting
摘要：The surface modification of the layered double hydroxides (LDHs) is of much importance for the purposes of the nanoparticle stability, dispersity and biocompatibility. Herein, we reported the fabrication and dispersible properties of surface modified LDHs by poly(ethylene glycol) (PEG) derivatives. First, Mg-Al LDHs were incubated with sulfate or carboxylate-terminated poly(ethylene glycol) (PEG) to fabricate PEG haired LDHs. The pristine LDH particles were truncated into smooth pie-like disks and their Zeta potential reversed to a highly negative value after the surface modification. The obtained PEG/LDH nanocomposites displayed a highly enhanced stability and dispersity due to the polymer steric hindrance and the electrostatic repulse. The PEG haired LDHs might be considered as a multifunctional model vehicle in biodelivery applications in the next applications due to the biocompatible polymer shells. (C) 2011 Elsevier B.V. All rights reserved.
卷号：384
期号：1-3
是否译文：否
