Synthesis of Cuprous Oxide Materials and Its Application in Photoacoustic Detection of Sulfides

A technology of cuprous oxide and technical detection, applied in the direction of copper oxide/copper hydroxide, nanotechnology, analytical materials, etc., to achieve the effect of strong binding ability, good stability and easy operation

Active Publication Date: 2019-12-10
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the use of cuprous oxide for photoacoustic detection of hydrogen sulfide in vivo

Method used

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  • Synthesis of Cuprous Oxide Materials and Its Application in Photoacoustic Detection of Sulfides
  • Synthesis of Cuprous Oxide Materials and Its Application in Photoacoustic Detection of Sulfides
  • Synthesis of Cuprous Oxide Materials and Its Application in Photoacoustic Detection of Sulfides

Examples

Experimental program
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Effect test

Embodiment 1

[0040] (1) First weigh 1.0 g of polyvinylpyrrolidone, add 10 mL of nitrogen-methylpyrrolidone to dissolve and disperse, wait until the solution becomes clear and transparent, add 3.0 g of copper nitrate solid under magnetic stirring, and continue stirring for 10 minutes to obtain a green transparent solution;

[0041] (2) The above solution was heated to 200° C. in a heating magnetic stirrer, and the magnetic stirring was carried out for 60 minutes;

[0042] (3) After the reaction, through centrifugal purification and redispersion in secondary water, the final product polyvinylpyrrolidone-coated cuprous oxide nanoparticles (i.e. nano-photoacoustic probes or cuprous oxide-based materials) can be obtained. The particle size is 80nm.

[0043] (4) Take the nano-photoacoustic probe and redisperse it in phosphate buffered saline PBS at a concentration of 50 micrograms per milliliter. Using a photoacoustic instrument, test the photoacoustic intensity before and after adding sodium hy...

Embodiment 2

[0053] (1) First weigh 1.0g of polyvinylpyrrolidone, add 10mL of nitrogen-methylpyrrolidone to dissolve and disperse, wait until the solution becomes clear and transparent, add 1.0g of copper nitrate solid under magnetic stirring, and continue stirring for 10 minutes to obtain a green transparent solution;

[0054] (2) The above solution was heated to 200° C. in a heating magnetic stirrer, and the magnetic stirring was carried out for 60 minutes;

[0055] (3) After the reaction, through centrifugal purification and redispersion in secondary water, the final product polyvinylpyrrolidone-coated cuprous oxide nanoparticles (i.e. nano-photoacoustic probes or cuprous oxide-based materials) can be obtained. The particle size is 50nm.

[0056] (4) Redisperse the nano-photoacoustic probe in secondary water with a concentration of 50 micrograms per milliliter. Using a photoacoustic instrument, test the photoacoustic intensity before and after adding sodium hydrosulfide, and the photoac...

Embodiment 3

[0059] (1) First weigh 1.0 g of polyvinylpyrrolidone, add 10 mL of nitrogen-methylpyrrolidone to dissolve and disperse, wait until the solution becomes clear and transparent, add 2.0 g of copper nitrate solid under magnetic stirring, and continue stirring for 10 minutes to obtain a green transparent solution;

[0060] (2) The above solution was heated to 200° C. in a heating magnetic stirrer, and the magnetic stirring was carried out for 60 minutes;

[0061] (3) After the reaction, through centrifugal purification and redispersion in secondary water, the final product polyvinylpyrrolidone-coated cuprous oxide nanoparticles (i.e. nano-photoacoustic probes or cuprous oxide-based materials) can be obtained. The particle size is 200nm.

[0062] (4) The nano-photoacoustic probe was redispersed in phosphate buffered saline PBS at a concentration of 50 micrograms per milliliter. Using a photoacoustic instrument, the photoacoustic intensity before and after adding sodium hydrosulfide ...

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Abstract

The invention relates to synthesis of a cuprous oxide material and application thereof in sulfide detection using photoacoustic technique. The cuprous oxide material is prepared by the following steps: (1) dissolving polyvinylpyrrolidone in nitromethylpyrrolidone to obtain a polyvinylpyrrolidone solution; (2) adding copper nitrate salt into the polyvinylpyrrolidone solution prepared in the step (1), and stirring for dissolution to obtain a PVP-Cu precursor; (3) heating the PVP-Cu precursor, reacting and purifying to obtain a precipitate; and dispersing the precipitate in water to obtain the target product. Moreover, the prepared cuprous oxide material can be applied in a brand new way to sulfide detection using photoacoustic technique. Compared with the prior art, the preparation method issimple with high selectivity and high sensitivity; and the prepared cuprous oxide material can be used for creating a nano photoacoustic probe to detect hydrogen sulfide gas in solution and living body, and has a broad application prospect in the field of biomedicine.

Description

technical field [0001] The invention relates to the field of cuprous oxide and its application, in particular to the synthesis of a cuprous oxide material and its application in the detection of sulfide by photoacoustic technology. Background technique [0002] Photoacoustic imaging is a new non-invasive and non-ionizing biomedical imaging method developed in recent years. Photoacoustic imaging combines the advantages of high selectivity in pure optical tissue imaging and deep penetration in pure ultrasound tissue imaging, overcomes the limitation of light scattering, and realizes high-resolution, high-contrast imaging of deep tissues in vivo. This imaging technology can image endogenous substances such as deoxyhemoglobin, oxygenated hemoglobin, melanin, lipid, etc., and provide information on the structure and function of living biological tissues, and has shown great application prospects in the field of biomedicine. [0003] The medical community has gradually realized t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/17C01G3/02B82Y40/00
CPCB82Y40/00C01G3/02C01P2002/72C01P2002/82C01P2004/04C01P2004/62C01P2004/64G01N21/1702
Inventor 田启威杨仕平芮西川安璐陶诚汪晓东
Owner SHANGHAI NORMAL UNIVERSITY
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