Preparation and Application of Photoelectrochemical Immunosensor for Detection of Carcinoembryonic Antigen
An immune sensor and carcinoembryonic antigen technology, applied in the field of nanomaterials, can solve the problems of susceptibility to high temperature, acid and alkali conditions, limited wide application, complicated acquisition process, etc., to achieve sensitive signal amplification, reduce complexity and Cost, the effect of enhancing the photocurrent signal
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[0023]Embodiment 1: photoelectrochemical immunosensor is used for the detection of carcinoembryonic antigen
[0024] (1) To prepare ZnO NRs-NSs / FTO electrodes, first prepare ZnO NRs / FTO electrodes by electrodeposition method: after ultrasonically cleaning FTO with ethanol, acetone, and secondary water for 10 min, spin-coat the FTO surface at a concentration of 40 mM Zinc acetate seed solution with a rotating speed of 1000 r / min and a time of 30 s, and then the spin-coated FTO was dried at 120 °C for 10 min, and the above-mentioned "spin coating-drying" process was repeated for 6 times, and the FTO electrode A three-electrode system composed of Ag / AgCl reference electrode and platinum counter electrode was used for electrodeposition operation, the deposition potential was 0.0V, and the deposition electrolyte was zinc nitrate with a concentration of 50 mM, ammonium acetate with a concentration of 50 mM and a concentration of 70 ethylenediamine mixture, the deposition temperature...
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