Preparation method and application of a photoelectrochemical sensor based on autio2/bi2s3 modified electrode
A modified electrode and photoelectrochemical technology, which is applied in the direction of material electrochemical variables, can solve the problem of low photoelectric conversion efficiency in the visible light region, and achieve excellent photoelectric conversion characteristics, simple operation, and high-sensitivity detection.
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Embodiment 1
[0026] Example 1 One is based on AutoO 2 / Bi 2 S 3 Method of the preparation of the optoelectronic chemical sensor of the breast cancer logo of the electrode CA15-3
[0027] (1) Autio 2 / Bi 2 S 3 Preparation of modified electrodes: Cut the ITO conductive glass to 2cm × 0.5cm, and use detergent, acetone, ethanol, and ultrasonic ultrasound for 30 minutes in turn, and blow dry with nitrogen.6 μl, 3mg / mlautio 2 Add the solution to the surface of the electrode, and dry it naturally under room temperature conditions. 6 μL, 3 mg / mlbi 2 S 3 Add the solution to the surface of the electrode and dry it under room temperature.
[0028] (2) CA15-3 of 6 μL, 8 μg / mL capture antibody AB 1 On the surface of the electrode, dry in the refrigerator at 4 ° C, rinse in super pure water;
[0029] (3) The BSA solution with a drop of 3 μL and a mass score of 0.5%on the surface of the electrode, with non -specific activity sites on the surface of the electrode, dry in the refrigerator at 4 ° C;
[0030] (4...
Embodiment 2
[0031] Example 2 One is based on AutoO2 / Bi 2 S 3 Method of the preparation of the optoelectronic chemical sensor of the breast cancer logo of the electrode CA15-3
[0032] (1) Autio 2 / Bi 2 S 3 Preparation of modified electrodes: Cut the ITO conductive glass to 2cm × 0.5cm, and use detergent, acetone, ethanol, and ultrasonic ultrasound for 30 minutes in turn, and blow dry with nitrogen.6 μl, 3mg / mlautio 2 Add the solution to the surface of the electrode, and dry it naturally under room temperature conditions. 6 μL, 4mg / mlbi 2 S 3 Add the solution to the surface of the electrode and dry it under room temperature.
[0033] (2) CA15-3 of 10 μg / ml of drops of 6 μL, 10 μg / ml capture antibody AB 1 On the surface of the electrode, dry in the refrigerator at 4 ° C, rinse in super pure water;
[0034] (3) BSA solution with a drop of 3 μL and a mass score of 1.0%on the surface of the electrode, with non -specific activity sites on the surface of the electrode, dry in the refrigerator at 4 ...
Embodiment 3
[0036] Example 3 One is based on AutoO 2 / Bi 2 S 3 Method of the preparation of the optoelectronic chemical sensor of the breast cancer logo of the electrode CA15-3
[0037] (1) Autio 2 / Bi 2 S 3 Preparation of modified electrodes: Cut the ITO conductive glass to 2cm × 0.5cm, and use detergent, acetone, ethanol, and ultrasonic ultrasound for 30 minutes in turn, and blow dry with nitrogen.6 μl, 3mg / mlautio 2 Add the solution to the surface of the electrode, and dry it naturally under room temperature conditions. 6 μL, 5 mg / mlbi 2 S 3 Add the solution to the surface of the electrode and dry it under room temperature.
[0038] (2) CA15-3 of 6 μL, 12 μg / ml of drops of drops of 6 μL, 12 μg / ml capture antibody AB 1 On the surface of the electrode, dry in the refrigerator at 4 ° C, rinse in super pure water;
[0039] (3) The BSA solution with a drop of 3 μL and a mass score of 2.0%is on the surface of the electrode, and the non -specific activity site on the surface of the electrode is d...
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