Monolayer molybdenum disulfide-zinc ferrite nanocomposite material and preparing method and application thereof

A technology of single-layer molybdenum disulfide and nanocomposite materials, applied in wave energy or particle radiation treatment materials, pharmaceutical formulations, medical preparations of non-active ingredients, etc., can solve the problems of rare research reports, achieve low energy consumption, The effect of low cost and high yield

Active Publication Date: 2017-08-11
HEBEI UNIV OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, single-layer molybdenum disulfide has a large specific surface area and remarkable electronic properties, and has shown broad application space in catalysts, field effect transistors and lithium-ion batteries, but research reports in the field of biomedicine are still relatively rare.

Method used

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  • Monolayer molybdenum disulfide-zinc ferrite nanocomposite material and preparing method and application thereof
  • Monolayer molybdenum disulfide-zinc ferrite nanocomposite material and preparing method and application thereof
  • Monolayer molybdenum disulfide-zinc ferrite nanocomposite material and preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Preparation of aminated molybdenum disulfide

[0035] Add 10g of commercial molybdenum disulfide powder and 750mL of deionized water into a 1000mL three-neck flask, place it in a low-power ultrasonic tank, and oscillate ultrasonically for 6 hours; the reaction product is washed three times with deionized water, collected by centrifugation, and then placed in vacuum drying Dry in the oven for 24 hours to obtain molybdenum disulfide nanosheets; take 0.25 g of vacuum-dried molybdenum disulfide nanosheets and redisperse them in 200 mL of deionized water, add 0.25 g of γ-aminopropyltriethoxysilane, ultrasonically oscillate for 2 hours, and then centrifuge , washed three times with absolute ethanol alcohol, placed in a vacuum oven and dried for 24 hours to obtain aminated molybdenum disulfide;

[0036] (2) Preparation of carboxylated zinc ferrite nanoparticles

[0037] In a 1000mL three-necked flask, 12.12gFe(NO 3 ) 3 9H 2 O and 4.46gZn(NO 3 ) 2 ·6H 2 O was dissolv...

Embodiment 2

[0041] (1) Preparation of aminated molybdenum disulfide

[0042] Put 5.0g of commercial molybdenum disulfide powder and 750mL of deionized water into a 1000mL three-neck flask, place it in a low-power ultrasonic tank, and oscillate ultrasonically for 6 hours; the reaction product is washed three times with deionized water, collected by centrifugation, and then placed in a vacuum Dry in a drying oven for 24 hours to obtain molybdenum disulfide nanosheets; take 0.25 g of vacuum-dried molybdenum disulfide nanosheets and redisperse them in 200 mL of deionized water, add 0.25 g of γ-aminopropyltriethoxysilane, ultrasonically oscillate for 2 hours, and then centrifuge Separation, washing with absolute ethanol three times, and drying in a vacuum oven for 24 hours to obtain aminated molybdenum disulfide;

[0043] (2) Preparation of carboxylated zinc ferrite nanoparticles

[0044] In a 1000mL three-necked flask, 12.12gFe(NO 3 ) 3 9H 2 O and 4.46gZn(NO 3 ) 2 ·6H 2 O was dissolved...

Embodiment 3

[0048] (1) Preparation of aminated molybdenum disulfide

[0049] Add 5g of commercial molybdenum disulfide powder and 750mL of deionized water into a 1000mL three-neck flask, place it in a low-power ultrasonic tank, and oscillate ultrasonically for 6 hours; the reaction product is washed three times with deionized water, collected by centrifugation, and then placed in vacuum drying Dry in the oven for 24 hours to obtain molybdenum disulfide nanosheets; take 0.25 g of vacuum-dried molybdenum disulfide nanosheets and redisperse them in 200 mL of deionized water, add 0.25 g of γ-aminopropyltriethoxysilane, ultrasonically oscillate for 2 hours, and then centrifuge , washed three times with absolute ethanol alcohol, placed in a vacuum oven and dried for 24 hours to obtain aminated molybdenum disulfide;

[0050] (2) Preparation of carboxylated zinc ferrite nanoparticles

[0051] In a 1000mL three-necked flask, 12.12gFe(NO 3 ) 3 9H 2 O and 4.46gZn(NO 3 ) 2 ·6H 2 O was dissolve...

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Abstract

The invention discloses a monolayer molybdenum disulfide-zinc ferrite nanocomposite material and a preparing method and application thereof, and relates to the field of novel nanocomposite materials. The material is composed of a molybdenum disulfide nanosheet and zinc ferrite nanoparticles, wherein the surface of the molybdenum disulfide nanosheet is evenly modified with the zinc ferrite nanoparticles, and the molybdenum disulfide nanosheet is of a layer-peeled structure. The zinc ferrite nanoparticles are assembled on the surface of the molybdenum disulfide nanosheet by means of the reaction of amino and carboxyl to form an amido bond. The method has the advantages that energy consumption is low, the cost is low, and the yield is high. The obtained composite material can serve as a magnetic resonance imaging contrast agent and a controllable drug carrier. A drug can reach and be gathered at the position of a focus under the guidance of a magnetic field, intelligent drug release and real-time curative effect evaluation can be achieved under the guidance of magnetic resonance imaging, and controllable adjustment of the magnetic resonance imaging effect and the drug loading capacity can be achieved by changing the relative content of molybdenum disulfide and zinc ferrite in the composite material.

Description

technical field [0001] The invention relates to the field of novel nanocomposite materials, in particular to a single-layer molybdenum disulfide-zinc ferrite nanocomposite material and its preparation method and application. Background technique [0002] Magnetic resonance imaging has the biological safety of no radiation damage, the technical flexibility of tomography in any direction, and the technical advantages of covering multi-parameter characteristics such as proton density, relaxation, and chemical shift, as well as high spatial resolution and high contrast. It has become one of the most powerful detection methods in contemporary clinical diagnosis. Magnetic resonance imaging mainly realizes the spatial positioning of hydrogen protons in human tissue through the gradient magnetic field dependent on the spatial position, and then realizes human body imaging through the acquisition, processing and image reconstruction of hydrogen proton magnetic resonance signals. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K49/08A61K47/04A61K41/00
Inventor 王光硕马莹莹
Owner HEBEI UNIV OF ENG
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