Electrochemical sensor electrode surface nano-material modification method and sensor
A sensor electrode and nanomaterial technology, which is applied in the direction of material analysis, scientific instruments, and analytical materials by electromagnetic means, can solve the lack of effective solutions for rapid, sensitive and specific detection of cancer, and cannot solve the problem of rapid, sensitive, and multi-parameter analysis of trace cancer proteins. Quantitative detection and other issues, to achieve the effect of universal promotion and application value, low cost, and high sensitivity
Inactive Publication Date: 2018-12-21
SHANDONG NORMAL UNIV
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The invention discloses an electrochemical sensor electrode surface nano-material modification method and a sensor. Carbon paper is used as a working electrode substrate; graphene nano, thionine and nano gold are modified on the surface of a working electrode to form a composite biosensitive membrane; and a specific antibody is fixed to the biosensitive membrane, and antigen detection is realizedby utilizing that the antigen concentration is proportional to the reduction degree of the reaction current. The multilayer nano sensitive membrane sensor can realize trace detection of high-sensitivity cancer protein and polypeptide molecules.
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