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聚N-异丙基丙烯酰胺-聚丙烯酸纳米胶囊的制备与载药性能研究     被引量:1

Preparation and Characterization of Poly(N-isopropylacrylamide)-poly(acrylic acid) Nanocapules

文献类型:期刊文献

中文题名:聚N-异丙基丙烯酰胺-聚丙烯酸纳米胶囊的制备与载药性能研究

英文题名:Preparation and Characterization of Poly(N-isopropylacrylamide)-poly(acrylic acid) Nanocapules

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

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:2012

卷号:32

期号:6

起止页码:22-26

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;;Scopus;北大核心:【北大核心2011】;CSCD:【CSCD_E2011_2012】;

基金:国家国际科技合作专项(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;药物载体

外文关键词:poly (N-isopropylacrylamide) ; poly ( acrylic acid) ; nanocapules ; drug carriern

分类号:TQ35

摘要:以羟丙基纤维素-聚丙烯酸(HPC-PAA)高分子复合物微粒为模板,通过自由基聚合反应在模板表面聚合单体N-异丙基丙烯酰胺(NIPAm),形成HPC-PAA-PNIPAm复合物纳米微粒,平均粒径约为130 nm。调节体系的pH值至8.0去除HPC模板后,获得中空结构的PNIPAm-PAA纳米胶囊,粒径约为500 nm。以盐酸阿霉素(Dox)作为模型药物,考察了PNIPAm-PAA纳米胶囊作为药物载体的相关性能。研究表明:PNIPAm-PAA纳米胶囊和Dox分子通过正负电荷的相互吸引实现有效结合,载药量高达130%;同时,载药纳米胶囊表现出很好的药物缓释效果。
In this study, a novel approach has been developed for the preparation of poly (N-isopropylacrylamide) -poly ( acrylic acid) (PNIPAm-PAA) nanocapules. In the first instance, the core-shell nanoparticles, which diameter was about 130 nm, were synthesized by precipitation polymerization with hydropropylcellulose-poly (acrylic acid) (HPC-PAA) particles as the core and the cross-linked PNIPAm as the shell. After the selective removal of HPC from the particles by adjusting the pH of solution to 8.0, hollow PNIPAm-PAA nanoeapules were obtained and the average diameter was 500 nm. Furthermore, the loading and releasing behaviors of PNIPAm-PAA nanoeapules were evaluated in mild condition by using anti-cancer drug Doxorubicin hydrochloride (Dox) as a hydrophilic model drug. It showed a super-high drug loading capacity of about 130 %, and a sustained- release characteristic under the physiological pH and temperature.

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