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Modified vanadium carbide nanodot for chemical power and photo-thermal synergistic antibiosis as well as preparation method and application of modified vanadium carbide nanodot

A vanadium carbide nano-photothermal synergistic technology, applied in the field of nano-materials, can solve problems such as the use of non-carbide vanadium nano-dots, and achieve the effect of improving the antibacterial treatment effect, beneficial to clinical use, and mild conditions

Pending Publication Date: 2022-03-15
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, so far, there has been no application of the synthesis of vanadium carbide nanodots and their synergistic antibacterial properties with chemical kinetics and photothermal therapy.

Method used

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  • Modified vanadium carbide nanodot for chemical power and photo-thermal synergistic antibiosis as well as preparation method and application of modified vanadium carbide nanodot
  • Modified vanadium carbide nanodot for chemical power and photo-thermal synergistic antibiosis as well as preparation method and application of modified vanadium carbide nanodot
  • Modified vanadium carbide nanodot for chemical power and photo-thermal synergistic antibiosis as well as preparation method and application of modified vanadium carbide nanodot

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Experimental program
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Embodiment 1

[0035] The present embodiment prepares vanadium carbide nanodots as follows:

[0036] (1) Disperse 1 g of commercial vanadium carbide powder in 20 mL of N-methylpyrrolidone (NMP) to obtain a vanadium carbide powder dispersion, which is put into a 50 mL centrifuge tube.

[0037](2) First, ultrasonically crush the vanadium carbide powder dispersion under an ice bath by a cell crusher (ultrasonic power is 300W, ultrasonic time is 2h), and then the vanadium carbide powder dispersion is ultrasonicated by an ultrasonic cleaner at room temperature. (ultrasonic power is 100W, ultrasonic time is 30h), centrifugation (8000rpm, 5min), repeated washing with absolute ethanol and deionized water to obtain vanadium carbide nanodots V 8 C 7 .

[0038] (3) Dissolve 100 mg of vanadium carbide nanodots and 1.0 g of PVP in 50 mL of absolute ethanol, reflux at 60°C for 12 h, then centrifuge (8000 rpm, 10 min), and wash with deionized water and ethanol to obtain modified vanadium carbide Nanodot...

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Abstract

The invention discloses a modified vanadium carbide nanodot for chemical power and photo-thermal synergistic antibiosis as well as a preparation method and application thereof, and the modified vanadium carbide nanodot is a stabilizer modified vanadium carbide nanodot with the size of 1-4 nm. The nano preparation disclosed by the invention has chemical kinetic characteristics and can be converted into high-toxicity active oxygen hydroxyl radicals under the action of hydrogen peroxide molecules in a body; meanwhile, due to high photothermal conversion efficiency, the preparation can cooperate with photothermal and chemical power, and effective treatment on bacteria such as gram-negative bacteria and gram-positive bacteria is achieved.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials, and in particular relates to a modified vanadium carbide nanodot used for chemokinetic and photothermal synergistic antibacterial and a preparation method thereof. Background technique [0002] Bacterial infections have now become a common focus of human concern due to their high morbidity and mortality. The traditional methods to combat bacterial infections are mainly antibiotics, metal ions and quaternary ammonium ions, but these methods are costly, toxic and environmentally unfriendly, thus limiting their further use and transformation. In addition, the overuse of antibiotics leads to the development of drug resistance in bacteria, the treatment effect is greatly weakened, and even leads to the production of super bacteria, which poses a major threat to people's health and safety. Therefore, explore new treatment strategies without obvious side effects and resistance. It is of great sig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K41/00A61K33/24A61K9/51A61K47/32A61P31/04B82Y5/00B82Y40/00C01B32/914
CPCA61K41/0052A61K33/24A61K9/5138A61P31/04B82Y5/00B82Y40/00C01B32/914C01P2002/72C01P2004/04C01P2004/64
Inventor 陶伟刘航查正宝王咸文
Owner HEFEI UNIV OF TECH
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