Direct immunosensing using differential electrochemical measurements of impedimetric variations

被引:55
作者
Maupas, H
Soldatkin, AP
Martelet, C
JaffrezicRenault, N
Mandrand, B
机构
[1] ECOLE CENT LYON,IFOS,LAB PHYSICOCHIM INTERFACES,UMR CNRS C5621,F-69131 ECULLY,FRANCE
[2] ECOLE NORMALE SUPER LYON,CNRS,UNITE MIXTE BIOMAT,F-69364 LYON 07,FRANCE
来源
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1997年 / 421卷 / 1-2期
关键词
immunodetection; electrochemistry; platinum; antigens; impedimetric variations;
D O I
10.1016/S0022-0728(96)04837-1
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
In this paper a new electrochemical method for direct immunodetection in real time is presented. The method is based on measurement of the impedimetric variations due to interaction with antigens on platinum electrodes functionalized with polymeric layers containing antibodies. In contrast to a classical impedimetric method, our method allows a differential mode of measurement, ensuring the specificity of the signal. The set-up includes a flow injection system, which is a convenient method of changing solutions and displaying the effect of the different parameters on the resulting responses.
引用
收藏
页码:165 / 171
页数:7
相关论文
共 16 条
  • [11] MAUPAS H, 1995, THESIS ECOLE CENTRAL
  • [12] MEYER TJ, 1979, INORG CHEM, V11, P3233
  • [13] FIBEROPTIC ATRAZINE IMMUNOSENSOR
    OROSZLAN, P
    DUVENECK, GL
    EHRAT, M
    WIDMER, HM
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 1993, 11 (1-3) : 301 - 305
  • [14] COMPETITIVE IMMUNOLOGICAL DETECTION OF PROGESTERONE BY MEANS OF THE ION-STEP INDUCED RESPONSE OF AN IMMUNOFET
    SCHASFOORT, RBM
    KELDERMANS, CEJM
    KOOYMAN, RPH
    BERGVELD, P
    GREVE, J
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 1990, 1 (1-6) : 368 - 372
  • [15] CHEMICALLY MODIFIED ELECTRODES .15. ELECTROCHEMISTRY AND WAVESHAPE ANALYSIS OF AMINOPHENYLFERROCENE BONDED TO ACID CHLORIDE FUNCTIONALIZED RUTHENIUM, PLATINUM, AND TIN OXIDE ELECTRODES
    SMITH, DF
    WILLMAN, K
    KUO, K
    MURRAY, RW
    [J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1979, 95 (02): : 217 - 227
  • [16] ELECTRODE MODIFICATION BY LONG-CHAIN, DIALKYL DISULFIDE REAGENT HAVING TERMINAL DINITROPHENYL GROUP AND ITS APPLICATION TO IMPEDIMETRIC IMMUNOSENSORS
    TAIRA, H
    NAKANO, K
    MAEDA, M
    TAKAGI, M
    [J]. ANALYTICAL SCIENCES, 1993, 9 (02) : 199 - 206