高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (4): 624.

• 研究简报 • 上一篇    下一篇

基于邻苯二胺电聚合膜的抗体固定化方法研究

李继山, 吴朝阳, 王桦, 沈国励, 俞汝勤   

  1. 化学生物传感与计量学国家重点实验室, 湖南大学化学化工学院, 长沙 410082
  • 收稿日期:2002-06-07 出版日期:2003-04-24 发布日期:2003-04-24
  • 通讯作者: 沈国励(1938年出生),男,教授,博士生导师,从事化学与生物传感器及其在生化、环境及材料分析中的应用研究.E-mail:shenguo@pE-maiubE-mailic.cs.hn.cn E-mail:E-mailE-mailic.cs.hn.cn
  • 基金资助:

    国家自然科学基金(批准号:29975006,20075006);教育部博士点基金(批准号:20010532008)资助

Studies on Antibody Immobilization Based on o-Phenylenediamine Electropolymerized Films for Immunosensors

LI Ji Shan, WU Zhao Yang, WANG Hua, SHEN Guo Li, YU Ru Qin   

  1. State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemisty and Chemical Engineering, Hunan University, Changsha 410082, China
  • Received:2002-06-07 Online:2003-04-24 Published:2003-04-24

关键词: 电聚合邻苯二胺膜, PSS聚阴离子膜, 自组装, 压电免疫传感器

Abstract: A novel method based on electropolymerized films(Eps) is proposed for immobilizing antibodies(antigens) through a polyelectrolyte mediated layer. The o phenylenediamine Eps are deposited on the surfaces of quartz crystal microbalance(QCM) with an electropolymerized method using o phenylenediamine as the precursor. After self assembling a polystyrenesulfonate(PSS) layer on the Eps, the immobilization of goat anti IgG antibody, as an example, is investigated. The effects of experimental conditions about PSS self assembly, IgG antibody immobilization and immunoreaction et al. on the performances of immunosensor were discussed respectively. The QCM immunosensor can be used to quantitatively determine NHIgG in the range of 1.67-196.08 μg/mL. Moreover, the PSS and protein layer can easily be removed by shifting the pH, making the immunosensor regenerable.

Key words: o Phenylenediamine electropolymerized films, PSS polyanion film, Self assembly, Piezoelectric immunosensors

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