Results 181 to 190 of about 13,220 (227)
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Electrochemical luminescence-based homogeneous immunosensor
Sensors and Actuators B: Chemical, 1993Abstract Luminol capable of generating electrochemical luminescence was employed as a label of immunoassay. A luminol-labeled antibody generated luminescence upon anodic oxidation and the luminescence decreased markedly in the presence of antigen. The decrease was correlated to the antigen concentration as low as 10 −11 g/ml antigen.
Masaru Tanaka +5 more
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Applications of electrochemical immunosensors to environmental monitoring
Biosensors and Bioelectronics, 1996This paper discusses basic electrochemical immunoassay technology. Factors limiting the practical application of antibodies to analytical problems are also presented. It addresses the potential use of immunoassay methods based on electrochemical detection for the analysis of environmental samples. It provides examples for the detection and quantitation
O A, Sadik, J M, Van Emon
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Electrochemical Immunosensors for Disease Detection and Diagnosis
Current Medicinal Chemistry, 2018Background: The detection of biological molecules referred as biomarkers in biological fluids is fundamental in clinical analysis because it permits to discriminate between healthy and ill individuals and to evaluate the progress of a disease. The development of immunosensors for the detection and monitoring of biomarkers is currently a major area of
Oana, Hosu +3 more
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Electrochemical immunosensors in breast and ovarian cancer
Clinica Chimica Acta, 2013During the last decades the incidence of cancer increased dramatically especially in developed countries. In spite of the fact that the immunochemical methods allowed the diagnosis in early stages, the biopsies are generally invasive methods that create discomfort to patients. The need for fast, sensitive, easy to use and noninvasive diagnosis tools is
Diaconu, I. +5 more
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Carbon nanotube/polysulfone screen-printed electrochemical immunosensor
Biosensors and Bioelectronics, 2007The simple and efficient method for preparing sensitive carbon nanotube/polysulfone/RIgG immunocomposite is described. The membrane of the modified disposable screen-printed electrochemical immunosensor is based on phase inversion method. Carbon nanotube/polysulfone membrane acts both as reservoir of immunological material and transducer while offering
Samuel, Sánchez +2 more
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Electrochemical immunosensor for the detection of atrazine
Journal of Molecular Recognition, 1998An amperometric immunosensor for the detection of the herbicide atrazine has been developed. A redox polymer PVPOs(bpy)2Cl was co-immobilized with the specific antibody on the surface of the electrode by crosslinking with PEGDGE to form an electron-conducting hydrogel.
M A, López +3 more
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Screen-Printed Electrochemical Immunosensors for PCB Detection
Electroanalysis, 2000An electrochemical enzyme immunoassay for polychlorinated biphenyls (PCB) using carbon-based screen-printed disposable electrodes as the solid-phase for reagent immobilization and also as the signal transducer has been optimized. Horseradish peroxidase (HRP) was conjugated with Ag or Ab and used as the enzyme label.
MASCINI, MARCO, LASCHI S., FRANEK M.
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An electrochemical immunosensor using ferrocenyl-tethered dendrimer
The Analyst, 2006We report here an enzyme-amplified, sandwich-type immunosensor for detecting the biospecific interaction between an antibody and antigen using redox mediation. We employed biotin/anti-biotin IgG as a model immunosensing pair. Partially ferrocenyl-tethered dendrimer (Fc-D), whose ferrocene moiety acts as a redox mediator, was immobilized to the ...
Kwon, SJ +3 more
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Electrochemical immunosensor with aptamer-based enzymatic amplification
Analytical Biochemistry, 2008An electrochemical immunosensor is reported by using aptamer-based enzymatic amplification with immunoglobulin E (IgE) as the model analyte. In this method, the IgE antibody is covalently immobilized as the capture probe on the gold electrode via a self-assembled monolayer of cysteamine.
Kejun, Feng +6 more
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Immunosensors: electrochemical sensing and other engineering approaches
Biosensors and Bioelectronics, 1998This article overviews the engineering approaches and the recent trends in the development of alternative immunoassay systems. A brief description of the main principles and limitations of conventional immunoassay is given. Immunosensing approaches overcoming these limitations are discussed. Alternatives to traditional immunoassay systems are discussed
A L, Ghindilis +3 more
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