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磁性聚N-异丙基丙烯酰胺-聚丙烯酸纳米复合微球的制备与性能研究  ( EI收录)   被引量:2

Preparation and Characterization of Magnetic Poly (N-isopropylacrylamide)-poly(Acrylic Acid) Hybrid Nanospheres

文献类型:期刊文献

中文题名:磁性聚N-异丙基丙烯酰胺-聚丙烯酸纳米复合微球的制备与性能研究

英文题名:Preparation and Characterization of Magnetic Poly (N-isopropylacrylamide)-poly(Acrylic Acid) Hybrid Nanospheres

作者:南静娅[1,2,3,4] 陈莹[1,2,3,4,5] 王春鹏[1,2,3,4,5] 储富祥[6]

第一作者:南静娅

通信作者:Chen, Y.|[a0005125116bcee0aa95c]陈莹;

机构:[1]中国林业科学研究院林产化学工业研究所;[2]生物质化学利用国家工程实验室;[3]国家林业局林产化学工程重点开放性实验室;[4]江苏省生物质能源与材料重点实验室;[5]中国林业科学研究院林业新技术研究所;[6]中国林业科学研究院

年份:2014

卷号:34

期号:1

起止页码:19-24

中文期刊名:林产化学与工业

外文期刊名:Chemistry and Industry of Forest Products

收录:CSTPCD;;EI(收录号:20141417548193);Scopus(收录号:2-s2.0-84897129207);北大核心:【北大核心2011】;CSCD:【CSCD2013_2014】;

基金:国家国际科技合作专项项目(2011DFA32440);国家自然科学基金资助项目(31100427);中国林科院林业新技术所基本科研业务费专项资金(CAFINT 2010C06)

语种:中文

中文关键词:聚N-异丙基丙烯酰胺;聚丙烯酸;纳米胶囊;磁性复合微球;靶向药物载体

外文关键词:poly (N-isopropylacrylamide) ;poly (acrylic acid) ;nanocapules;magnetic hybrid nanospheres;targeted drug carrier

分类号:TQ35

摘要:以天然高分子羟丙基纤维素-聚丙烯酸(HPC-PAA)胶体微粒为模板,通过沉淀聚合法获得中空结构的聚N-异丙基丙烯酰胺-聚丙烯酸(PNIPAm-PAA)纳米胶囊,平均粒径约为500 nm;然后运用静电作用自组装法和原位还原法将Fe3O4磁性纳米粒子负载于PNIPAm-PAA纳米胶囊上,制备获得Fe3O4/PNIPAm-PAA磁性纳米复合微球,粒径约为400 nm。制得的复合微球不仅具有一定的铁磁性(饱和磁化强度为5.5(A·m2)/kg,而且对抗肿瘤药物——盐酸阿霉素(Dox)显示了较高的载药率和较好的体外缓释效果,有望成为一种新型的靶向药物载体应用于药物输送体系。
In this study, a convenient approach has been proposed for the preparation of magnetic poly (N-isopropylacrylamide)- poly (acrylic acid ) (PNIPAm-PAA) hybrid nanospheres. In the first step, hollow PNIPAm-PAA nanocapules, of which the diameter was about 500 nm, were synthesized by precipitation polymerization with hydropropylcellulose-poly (acrylic acid ) (HPC-PAA) particles as the template. In the second step, the electrostatic interaction self-assembly method and the in situ reduction method were adopted to generate the magnetic Fe3O4 nanoparticles inside the nanoepsules. Thus the magnetic Fe304/ PNIPAm-PAA hybrid nanospheres were finally obtained and the average diameter was 400 nm. In addition, a high drug loading capacity and a sustained-release behavior were presented by using anti-cancer drug Doxorubicin hydrochloride (Dox) as a hydrophilic model drug. It indicated that the Fe3O4/PNIPAm-PAA hybrid nanospheres might be used as a new magnetic-targeted drug carrier for the drug delivery system.

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