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A kind of monolayer molybdenum disulfide-zinc ferrite nanocomposite material and its preparation method and application

A nano-composite material, single-layer molybdenum disulfide technology, which is applied in the fields of wave energy or particle radiation treatment materials, pharmaceutical formulations, medical preparations with inactive ingredients, etc., can solve problems such as rare research reports, achieve low energy consumption, The effect of low cost and high yield

Active Publication Date: 2020-11-24
HEBEI UNIV OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • A kind of monolayer molybdenum disulfide-zinc ferrite nanocomposite material and its preparation method and application
  • A kind of monolayer molybdenum disulfide-zinc ferrite nanocomposite material and its preparation method and application
  • A kind of monolayer molybdenum disulfide-zinc ferrite nanocomposite material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Preparation of aminated molybdenum disulfide

[0035] Put 10g commercial molybdenum disulfide powder and 750mL deionized water into a 1000mL three-necked flask, place it in a low-power ultrasonic tank, and vibrate ultrasonically for 6h; the reaction product is washed three times with deionized water, collected by centrifugation, and then dried in vacuum Dry in an oven for 24 hours to obtain molybdenum disulfide nanosheets; take 0.25g of vacuum-dried molybdenum disulfide nanosheets and disperse in 200mL deionized water, add 0.25g γ-aminopropyltriethoxysilane, ultrasonically shake for 2h, and centrifuge. , Washed three times with anhydrous ethanol and dried in a vacuum drying oven 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 Dissolve O in 750mL deionized water, bubbling with nitrogen for 30min, stir it eve...

Embodiment 2

[0041] (1) Preparation of aminated molybdenum disulfide

[0042] Add 5.0 g of commercial molybdenum disulfide powder and 750 mL of deionized water to a 1000 mL three-necked flask, place it in a low-power ultrasonic tank, and vibrate ultrasonically for 6 hours; the reaction product is washed three times with deionized water, collected by centrifugation, and then placed in vacuum Dry in a drying box for 24 hours to obtain molybdenum disulfide nanosheets; take 0.25g of vacuum-dried molybdenum disulfide nanosheets and disperse in 200mL deionized water, add 0.25g γ-aminopropyltriethoxysilane, ultrasonically shake for 2h and centrifuge Separate, wash with anhydrous ethanol and alcohol three times, and place it in a vacuum drying 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 Dissolve O in 750mL deionized water, bubbli...

Embodiment 3

[0048] (1) Preparation of aminated molybdenum disulfide

[0049] Put 5g commercial molybdenum disulfide powder and 750mL deionized water into a 1000mL three-necked flask, place it in a low-power ultrasonic tank, and vibrate ultrasonically for 6 hours; the reaction product is washed three times with deionized water, collected by centrifugation, and then dried in vacuum Dry in an oven for 24 hours to obtain molybdenum disulfide nanosheets; take 0.25g of vacuum-dried molybdenum disulfide nanosheets and disperse in 200mL deionized water, add 0.25g γ-aminopropyltriethoxysilane, ultrasonically shake for 2h, and centrifuge. , Washed three times with anhydrous ethanol and dried in a vacuum drying oven 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 Dissolve O in 750mL deionized water, bubbling with nitrogen for 30min, stir it...

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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 a preparation method and application thereof. Background technique [0002] Magnetic resonance imaging has the biological safety of no radiation damage, the technical flexibility of tomography in any orientation, and the technical advantages of covering proton density, relaxation, chemical shift and other multi-parameter features 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 tissues through spatial position-dependent gradient magnetic fields, and then realizes human body imaging through the acquisition, processing and image reconstruction of hydrogen proton magnetic resonance signals. The signal intensi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K49/08A61K47/02A61K47/52A61K41/00
Inventor 王光硕马莹莹
Owner HEBEI UNIV OF ENG
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