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Preparing method and application of electrochemical luminescence sensor based on silver oxalate bridging tris (bipyridine) ruthenium nanometer composite

A technology of ruthenium terpyridine nanometer and silver oxalate, which is applied in the fields of nanomaterials and analytical chemistry, can solve the problems of weak electrostatic adsorption force, slow mass transfer of Nafion membrane, and small fixed amount, etc., and achieves short response time and signal response. Wide-ranging, easy-to-use effects

Active Publication Date: 2018-01-05
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are some defects in the above method, such as weak electrostatic adsorption force between ruthenium terpyridine and other substances, slow mass transfer of Nafion membrane, less fixed amount, or tedious layer-by-layer assembly process, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 1. Preparation method of an electrochemiluminescence sensor based on silver oxalate bridged ruthenium terpyridine nanocomposites

[0042] (1) Preparation of gold-functionalized graphene oxide-silver oxalate / ruthenium terpyridine nanocomposites

[0043] Dissolve 60 mg of silver nitrate, 0.5 g of polyvinylpyrrolidone and 1 mg of graphene oxide in 20 mL of ultrapure water, add 10 mL of sodium bicarbonate solution with a concentration of 0.05 mol / L dropwise into the solution, keep stirring at room temperature for 1 h, and centrifuge Separation, washing with water and ethanol 3 times respectively, obtained graphene oxide-silver carbonate nanocomposite material;

[0044] Disperse 10 mg of graphene oxide-silver carbonate nanocomposite material in 20 mL of ethylene glycol, and ultrasonicate for 4 hours to obtain solution A; dissolve 50 mg of oxalic acid and 1 mL of ruthenium terpyridyl solution with a concentration of 1 mmol / L in 20 mL of ethylene glycol, Obtain solution B; ad...

Embodiment 2

[0062] 1. Preparation method of an electrochemiluminescence sensor based on silver oxalate bridged ruthenium terpyridine nanocomposites

[0063] (1) Preparation of gold-functionalized graphene oxide-silver oxalate / ruthenium terpyridine nanocomposites

[0064] Dissolve 100 mg of silver nitrate, 2 g of polyvinylpyrrolidone and 10 mg of graphene oxide in 20 mL of ultrapure water, add 30 mL of sodium bicarbonate solution with a concentration of 0.05 mol / L dropwise into the solution, keep stirring for 1 h at room temperature, and centrifuge , washed with water and ethanol 3 times respectively to obtain graphene oxide-silver carbonate nanocomposite material;

[0065] Disperse 70mg of graphene oxide-silver carbonate nanocomposite material in 20mL of ethylene glycol and ultrasonicate for 4h to obtain solution A; dissolve 300mg of oxalic acid and 5mL of ruthenium terpyridyl solution with a concentration of 1mmol / L in 20mL of ethylene glycol, Obtain solution B; add solution A dropwise ...

Embodiment 3

[0083] 1. Preparation method of an electrochemiluminescence sensor based on silver oxalate bridged ruthenium terpyridine nanocomposites

[0084] (1) Preparation of gold-functionalized graphene oxide-silver oxalate / ruthenium terpyridine nanocomposites

[0085] Dissolve 80 mg of silver nitrate, 1.0 g of polyvinylpyrrolidone and 5 mg of graphene oxide in 20 mL of ultrapure water, add 20 mL of sodium bicarbonate solution with a concentration of 0.05 mol / L dropwise into the solution, keep stirring at room temperature for 1 h, and centrifuge Separation, washing with water and ethanol 3 times respectively, obtained graphene oxide-silver carbonate nanocomposite material;

[0086] Disperse 50mg of graphene oxide-silver carbonate nanocomposite material in 20mL of ethylene glycol and ultrasonicate for 4h to obtain solution A; dissolve 200mg of oxalic acid and 3mL of ruthenium terpyridyl solution with a concentration of 1mmol / L in 20mL of ethylene glycol, Obtain solution B; add solution ...

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Abstract

The invention relates to a preparing method and application of an electrochemical luminescence sensor based on a silver oxalate bridging tris (bipyridine) ruthenium nanometer composite, and belongs tothe field of nanometer materials and analysis chemistry. A metal functionalization graphene oxide-silver oxalate / tris (bipyridine) ruthenium nanometer composite material and a ferroferric oxide poly-dopamine core-shell composite material are utilized to prepare the electrochemical luminescence sensor, and the electrochemical luminescence sensor is used for sensitity detection of N-terminal pro-B-type natriuretic peptide.

Description

technical field [0001] The invention relates to a preparation method and application of an electrochemical luminescence sensor based on a silver oxalate bridged triple pyridine ruthenium nanocomposite, belonging to the field of nanomaterials and analytical chemistry. Background technique [0002] N-terminal pro-B-type natriuretic peptide is a chemical factor that has been studied more in recent years, and it has important value in the screening, efficacy evaluation and prognosis judgment of heart failure. As the most sensitive and specific indicator of cardiac dysfunction, N-terminal pro-B-type natriuretic peptide has important clinical significance. It is a cardiac neurohormone sensitive to volume load, which is mainly secreted by the myocardial cells of the ventricle when the volume of the ventricle increases and the pressure load increases, reflecting the pressure and wall tension changes in the left ventricle. In patients with diastolic heart failure, even if there are ...

Claims

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Application Information

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IPC IPC(8): G01N27/327G01N27/48G01N33/543G01N33/68B82Y15/00
Inventor 朱文娟魏琴范大伟张勇孙旭匡轩鞠熀先
Owner UNIV OF JINAN
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