聚苯胺纳米纤维的合成及其在生物传感器中的应用  

Synthesis of polyaniline nanofiber and its application to the biosensor

作　　者：冯晓苗[1] 

机构地区：[1]南京邮电大学江苏省有机电子与平板显示重点实验室,材料科学与工程学院,江苏南京210046

出　　处：《功能材料》2010年第7期1250-1252,共3页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(20905038);南京邮电大学引进人才科研启动资助项目(NY207163);江苏省高校自然科学基金资助项目(08KJB150011)

摘　　要：采用三嵌段共聚物P123(EO20PO70EO20)合成聚苯胺纳米纤维。利用粉末X射线衍射、透射电子显微镜、扫描电子显微镜、紫外光谱、红外光谱、热重分析等手段对产品的形态、组成和光学性质进行了表征。另外,将聚苯胺固定到玻碳电极表面构建了生物传感器。聚苯胺修饰电极对抗坏血酸的氧化显示了高的催化活性。讨论了聚苯胺纳米纤维可能的形成机理。Polyaniline （PANI） nanofibers were synthesized in the presence of triblock copolymer P123 （EO20PO70EO20）.The morphology,composition,and optical properties of the resulting products were characterized by scanning electron microscopy,transmission electron microscopy,X-ray diffraction,thermogravimetric analysis,Fourier transform infrared spectroscopy,and ultraviolet-visible absorption spectra.In addition,PANI was also immobilized on the surface of a glassy carbon electrode （GCE） to construct a biosensor.The obtained PANI-modified GCE showed high catalytic activity for the oxidation of ascorbic acid.The possible formation mechanism of the PANI nanofibers was also discussed.

关 键 词：聚苯胺 纳米纤维 生物传感器 P123 

分 类 号：O6[理学—化学]