基于荧光素的荧光纳米纤维的制备与表征  

Preparation and Characterization of Fluorescent Nanofiber Based on Fluorescein

作　　者：王恒国[1,2] 刘大海[1] 张朝群[2] 李耀先[2] 杨清彪[2] 杜建时[1,2] 

机构地区：[1]吉林大学中日联谊医院,长春130031 [2]吉林大学化学学院,长春130012

出　　处：《高等学校化学学报》2012年第5期1074-1077,共4页Chemical Journal of Chinese Universities

摘　　要：以电纺聚丙烯腈(PAN)纳米纤维为起始物,经乙二胺改性后,再利用Mannich反应将荧光素共价连接于PAN纳米纤维薄膜表面.用荧光光谱、扫描电镜和红外光谱进行了结构表征.结果表明,利用荧光素对静电纺丝薄膜表面进行修饰,获得了很强的荧光信号,证明了方法的可行性.The novel fluorescent nanofiber films were synthesized by aminating available electrospun polyacrylonitrile nanofibers with ethylenediamine and then immobilizing fluorescein covalently through a Mannich reaction.The resulting fluorescent nanofibers have been confirmed by fluorescence spectra,field-emission scanning electron microscopy（FE-SEM） and Fourier transform infrared（FTIR） spectrum.Results show that the synthesized nanofibers exhibit strong fluorescence,which show fluorescein was immobilized covalently into the electrospun nanofiber films.Further modification of electrospun films with fluorescent molecules presents the possibility of practical sensing applications of the electrospun films.

关 键 词：静电纺丝 荧光素 聚丙烯腈 纳米纤维 

分 类 号：O632[理学—高分子化学]