首页 | 本学科首页   官方微博 | 高级检索  
     检索      

分子印迹纳米胶体阵列检测爆炸物的研究
引用本文:芦薇,薛飞,黄舒悦,孟子晖,薛敏.分子印迹纳米胶体阵列检测爆炸物的研究[J].分析化学,2012,40(10):1561-1566.
作者姓名:芦薇  薛飞  黄舒悦  孟子晖  薛敏
作者单位:北京理工大学化工与环境学院,北京,100081
基金项目:国家自然科学基金(No.20775007);环境毒理国家重点实验室(No.KF0904)资助
摘    要:以三硝基甲苯(TNT)为模板,丙烯酰胺为功能单体,采用乳液聚合法制备具有单分散性的TNT分子印迹胶体小球.通过垂直沉降法自组装,并用胶带将得到的具有蛋白石结构的分子印迹胶体阵列(MICA)固化.研究其在不同比例的甲醇/水溶液中的光学响应,并在最优检测环境下进行特异性吸附实验.实验表明,当甲醇/水的体积比为7∶3,TNT浓度为20 mmol/L时,反射峰红移近24 nm,为非印迹胶体阵列红移量的1.4倍,为TNT结构类似物的23倍.MICA在实现对光子晶体传感器制备简化的同时,提供了对TNT进行快速裸眼检测的可能性.

关 键 词:光子晶体  胶体阵列  分子印迹  三硝基甲苯(TNT)

Molecularly Imprinted Colloidal Array for Detection of Explosives
LU Wei , XUE Fei , HUANG Shu-Yue , MENG Zi-Hui , XUE Min.Molecularly Imprinted Colloidal Array for Detection of Explosives[J].Chinese Journal of Analytical Chemistry,2012,40(10):1561-1566.
Authors:LU Wei  XUE Fei  HUANG Shu-Yue  MENG Zi-Hui  XUE Min
Institution:(School of Chemical & Environmental Enviromental Engineering, Beijing Institute of Technology,Beijing 100081,China)
Abstract:The molecularly imprinted colloidal microspheres with good monodispersity were prepared by using trinitrotoluene(TNT) as template,and acrylamide as monomer and polymerizing by emulsion polymerization.The colloidal microspheres were self-assembled into array by vertical deposition method on a quartz slide,and then molecularly-imprinted colloidal array(MICA) which had opal structure was peeled off and immobilized on glue tape.In this research,the influence of different detection environments on optical response of MICA was discussed,as well as the specific adsorption capacity in response of the optimum testing environment.The results showed that the response of TNT at the concentration of 20 mmol/L in methanol-aqueous(7:3,V/V) solution reached a redshift of 24 nm,which was 1.4 times of non-molecularly-imprinted colloidal array and 23 times of its analogues.MICA simplified the preparation process of photonic crystals sensor,and represented a noval highly selective,real-time "naked-eye" detection method for explosive.
Keywords:Photonic crystal  Molecularly imprinted colloidal array  Molecular imprinting  Trinitrotoluene
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号