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Preparation method of manganese ion doped vanadium diselenide nanosheet with near-infrared light response

A near-infrared light-responsive, vanadium diselenide technology, applied in binary selenium/tellurium compounds, nanotechnology for materials and surface science, nanotechnology, etc. low biocompatibility and poor biocompatibility of semi-metallic nanomaterials, achieving the effects of high photothermal conversion efficiency, simple preparation method, good photothermal stability and biocompatibility

Active Publication Date: 2022-05-13
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention will solve the problems of poor biocompatibility and low photothermal stability of existing semi-metallic nanomaterials, and simultaneously solve the problem of single property of existing semi-metallic nanomaterials , and provide a method for preparing near-infrared light-responsive manganese ion-doped vanadium diselenide nanosheets

Method used

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  • Preparation method of manganese ion doped vanadium diselenide nanosheet with near-infrared light response
  • Preparation method of manganese ion doped vanadium diselenide nanosheet with near-infrared light response
  • Preparation method of manganese ion doped vanadium diselenide nanosheet with near-infrared light response

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specific Embodiment approach 1

[0035] Specific embodiment one: the preparation method of the manganese ion-doped vanadium diselenide nano-sheet of this embodiment a kind of near-infrared photoresponse, it is carried out according to the following steps:

[0036] 1. Preparation of VSe by high-temperature organic solution phase method 2 / Mn:

[0037] ①. Under the condition of magnetic stirring, mix octadecene and oleylamine evenly, add manganese chloride tetrahydrate, heat to a temperature of 100°C-120°C in a vacuum state, and in a room with a temperature of 100°C-120°C Under certain conditions, keep warm for 20 minutes to 30 minutes;

[0038] ②. Turn off the vacuum device, inject nitrogen gas, inject the octadecene solution of vanadium chloride at a temperature of 100°C to 120°C, and keep it warm for 20min to 30min at a temperature of 100°C to 120°C;

[0039] ③. Raise the temperature to 300°C-320°C, and add the octadecene solution of selenium powder at a temperature of 300°C-320°C, and then react for 1 hour ...

specific Embodiment approach 2

[0052] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the washing described in step one 3. is to wash with the mixed solution of ethanol and hexanaphthene, and the volume ratio of described ethanol and hexanaphthene is (2.3~2.5): 1; The washing described in step 2 ③ is to wash with water and ethanol in sequence, and repeat the washing three times. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0053] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the centrifugation described in Step 1 ③ and Step 2 ③ is specifically centrifuged for 5 min to 10 min at a rotational speed of 4000 rpm to 6000 rpm. Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a preparation method of a manganese ion doped vanadium diselenide nanosheet with near-infrared light response, and relates to a preparation method of a nanosheet with near-infrared light response. The invention aims to solve the problems of poor biocompatibility and low photo-thermal stability of the existing semi-metal nano material and solve the problem of single property of the existing semi-metal nano material. The preparation method comprises the following steps: 1, preparing VSe2 / Mn by adopting a high-temperature organic solution phase method; and 2, coating the surface of the VSe2 / Mn nanosheet with chitosan. The method is used for preparing the manganese ion doped vanadium diselenide nanosheet with near-infrared light response.

Description

technical field [0001] The invention relates to a method for preparing a nano sheet responding to near-infrared light. Background technique [0002] In all cancer treatments, non-invasive treatment techniques have become the focus of attention. Photothermal therapy is a treatment method that can precisely target tumors, inhibit their growth and avoid healthy tissues. The light-induced increase in body temperature can effectively slow down the growth rate of pathogens, and the corresponding enzyme activity will also be inhibited. Therefore, photothermal therapy is considered as a promising and effective non-invasive treatment modality. However, the exogenous photothermal agent (PTA) used for photothermal therapy due to the limited penetration depth, excessive high temperature at the tumor site causes damage to healthy cells and heat shock proteins produced by cancer cells themselves at slightly lower temperatures The resistance has limited the development of photothermal th...

Claims

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Application Information

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IPC IPC(8): C01B19/04B82Y40/00B82Y30/00B82Y5/00A61K9/51A61K33/24A61K33/32A61K41/00A61K49/00A61K49/18A61K49/22A61P35/00
CPCC01B19/007B82Y40/00B82Y30/00B82Y5/00A61K41/0052A61K33/32A61K33/24A61K9/5161A61K49/0013A61K49/0065A61K49/0093A61K49/1863A61K49/225A61P35/00C01P2004/20C01P2004/04C01P2002/85C01P2002/84
Inventor 冯莉莉赵若茜杨飘萍朱彦霖贺飞董禹杉周佳玲
Owner HARBIN ENG UNIV
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