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Novel photoelectric biosensing system for detecting 17 beta-estradiol

A bio-sensing and estradiol technology, applied in measurement devices, material electrochemical variables, material analysis by electromagnetic means, etc., can solve problems such as E2 emission, and achieve low cost of consumables, easy control of reaction conditions, and stability. Good results

Inactive Publication Date: 2021-10-19
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to drug abuse in livestock growth promotion and human drug therapy, large amounts of E2 are emitted into the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Electrochemical deposition of FeOOH layer: The three electrodes of FTO, Pt and Ag / AgCl were immersed in 0.1 MFeSO4 7H2O electrolyte as a group to form an electrochemical deposition device. Under the condition of no simulated light, the electrochemical deposition potential and The time is controlled at 1.2 V vs Ag / AgCl and 10-20 min, respectively;

[0017] (2) Preparation of FTO / FeOOH / CoTiO3: Mix 0.01 mol Co(CH3COO)2 4H2O and 0.01 mol tetrabutyl titanate with 60 mL ethylene glycol, stir for 24 h, and centrifuge the uniformly stirred CoTiO3 precursor solution Three times, washed with ethanol, dried in vacuum at 80 °C for 4 h, finally, the powder was heat-treated in air for 2 h at 600 °C, 20 μL of CoTiO3 solution (8 mg / mL) was modified on the electrode and Dry to form FTO / FeOOH / CoTiO3 electrode;

[0018] (3) Preparation of biosensing electrodes: Then modify the electrodes with 6 μL of 0.5% chitosan solution containing 1% acetic acid, semi-dry in the air, and then rins...

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PUM

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Abstract

The invention discloses a novel photoelectric biosensing system for detecting 17 beta-estradiol. According to a photoelectric sensing system, the co-catalyst FeOOH can fully utilize and transport a large number of holes, the recombination of photon-generated carriers is greatly reduced, so that a photocurrent signal of the substrate is enhanced, the light absorption range is better expanded through a heterojunction formed by the co-catalyst FeOOH and CoTiO3, and the photon-generated carriers are better transported on an electrode. The prepared sensor for detecting 17 beta-estradiol has good stability and satisfactory specificity.

Description

technical field [0001] The invention relates to the technical field of photoelectric biodetection, in particular to a novel photoelectric biosensing system for detecting 17β-estradiol. Background technique [0002] Through the irradiation of light, the light is absorbed by the metal or semiconductor electrode material, or by the reactant in the solution near the electrode, causing energy accumulation or prompting the electrode reaction to occur, which is reflected in the conversion of light energy, electrical energy and chemical energy, such as photoelectron emission; Photoelectric conversion of photoelectrochemical cells; electrochemiluminescence, etc. The development of photoelectric synthesis is very extensive, and the origin of life may be produced by natural photoelectric synthesis. Rare metals and precious metals can be enriched by photoelectrochemical principles, information can be recorded and preserved, and information can be eliminated at any time in a simple way,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/30G01N27/38
CPCG01N27/30G01N27/305G01N27/38
Inventor 颜梅魏全勇张晶孙荣环马云飞李成芳
Owner UNIV OF JINAN