超临界流体技术制备布洛芬/脂复合粒  

Composite microparticles of ibuprofen/lipid generated by supercritical fluids from their melts

作　　者：王霞[1] 郭燕妮[1] 陈辉[1] 苏玉忠[1] 王宏涛[1] 李军[1] 

机构地区：[1]厦门大学化学化工学院化学工程与生物工程系,福建厦门361005

出　　处：《现代化工》2007年第S2期398-402,共5页Modern Chemical Industry

基　　金：国家自然科学基金资助项目(20406015);福建省新世纪优秀人才支持计划;福建省自然科学基金资助项目(2007J0167)

摘　　要：采用CO2及N2辅助的气体饱和溶液微粒形成技术制备布洛芬/肉豆蔻酸、布洛芬/三棕榈酸甘油酯复合微粒,考察它们的形态、颗粒分布以及复合微粒中药物的溶出情况。N2辅助过程制得的布洛芬(质量分数5%)/肉豆蔻酸复合微粒与用该过程得到的纯肉豆蔻酸大小及粒径分布大致相同,而CO2辅助过程制得的布洛芬/肉豆蔻酸复合微粒却要比该过程得到的纯肉豆蔻酸的粒径要大,分布也较宽;CO2及N2辅助形成的布洛芬/肉豆蔻酸复合微粒无缓释效果。用N2辅助制备得到的含20%布洛芬(质量分数)的复合微粒保持了三棕榈酸甘油酯微粒化后的颗粒形貌,粒径更大;用CO2辅助制备得到的含20%布洛芬的复合微粒其粒径比三棕榈酸甘油酯微粒化后的颗粒粒径要小,粒径分布更窄;布洛芬/三棕榈酸甘油酯复合微粒具有缓释效果,而且用N2辅助制备的布洛芬含量为5%的复合微粒比布洛芬含量为20%的复合微粒溶出慢。Using the CO2-assisted and N2-assisted atomization processes,ibuprofen/lipid composite microparticles can be produced;the lipid includes myristic acid(MA) and tripalmitin(TP).The ibuprofen(5% in mass ratie)/MA composite microparticles show similar particle sizes to that of pure MA from the N2-assisted process,while the composite microparticles have a large particle size and particle size distribution,compared to that of pure MA from the CO2-assisted process.The dissolution reveals no controlled release of ibuprofen for the ibuprofen/MA composite microparticles either from the N2-assisted process or from the CO2-assisted process.For the ibuprofen/TP system,the obtained composite microparticles containing 20%(in mass) ibuprofen show similar particle morphology,while has a larger particle size(PS) than that of the pure myristic acid particles in the case of N2-assisted process.Nevertheless,the microparticles from the CO2-assisted process has a small PS and narrow PSD,compared to that of the pure myristic acid particles.The obtained ibuprofen/TP composite microparticles containing 5% or 20% ibuprofen show an evidently controlled drug release.For example,the drug release is only 20% in 500 min for the ibuprofen/TP microparticles containing 20% ibuprofen,prepared by the CO2-assisted process.

关 键 词：超临界流体 复合微粒 布洛芬 三棕榈酸甘油酯 熔融 

分 类 号：TQ463[化学工程—制药化工]