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Xylan hyamine nanometer magnetic particle and preparing method thereof

A nano-magnetic and xylan technology, which is applied to the magnetism of organic materials/organic magnetic materials, pharmaceutical formulations, medical preparations of non-active ingredients, etc., can solve problems such as magnetic functional materials that have not been reported, and achieve good industrial applications The effect of prospect, easy access to raw materials, and simple process

Active Publication Date: 2015-11-25
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report on the preparation of magnetic functional materials using xylan quaternary ammonium salt nanoparticles as a matrix.

Method used

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  • Xylan hyamine nanometer magnetic particle and preparing method thereof
  • Xylan hyamine nanometer magnetic particle and preparing method thereof
  • Xylan hyamine nanometer magnetic particle and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] (1) Magnetic microspheres (γ-Fe 2 o 3 ) preparation: under magnetic stirring, 2.70g of FeCl 3 . 6H 2O was dissolved in 100mL of ethylene glycol, and dissolved for 0.5h to obtain a yellow transparent solution, then 7.20g of anhydrous sodium acetate was added to the solution, and the stirring was continued for 0.5h, after which the solution was transferred to a stainless steel autoclave, sealed and heated at 200°C Heating and reacting for 8 hours, cooling to room temperature after the reaction was over, to obtain black magnetic powdery solid particles, washing the solid particles three times with ethanol and water respectively, and finally drying them under vacuum at 60°C for 12 hours to obtain magnetic microspheres (γ-Fe 2 o 3 );

[0040] (2) Preparation of xylan quaternary ammonium salt (QX): Place 0.33g xylan in a three-necked flask, add 10mL of anhydrous DMSO, and dissolve in an oil bath at 95°C for 1.5h under stirring conditions to obtain light The yellow solut...

Embodiment 2

[0047] (1) Magnetic microspheres (γ-Fe 2 o 3 ) preparation: under magnetic stirring, 2.70g of FeCl 3 . 6H 2 O was dissolved in 100mL of ethylene glycol, and dissolved for 0.5h to obtain a yellow transparent solution, then 7.20g of anhydrous sodium acetate was added to the solution, and the stirring was continued for 0.5h, after which the solution was transferred to a stainless steel autoclave, sealed and heated at 200°C Heat the reaction for 8 hours, cool to room temperature after the reaction, and obtain black magnetic powdery solid particles, wash the solid particles with ethanol and water three times, and finally dry them under vacuum at 60°C for 12 hours to obtain magnetic microspheres;

[0048] (2) Preparation of xylan quaternary ammonium salt (QX): Place 0.33g xylan in a three-necked flask, add 10mL of anhydrous DMSO, and dissolve in an oil bath at 95°C for 1.5h under stirring conditions to obtain light The yellow solution was lowered to room temperature, then 200 μL...

Embodiment 3

[0053] (1) Magnetic microspheres (γ-Fe 2 o 3 ) preparation: under magnetic stirring, 2.70g of FeCl 3 . 6H 2 O was dissolved in 100mL of ethylene glycol, and dissolved for 0.5h to obtain a yellow transparent solution, then 7.20g of anhydrous sodium acetate was added to the solution, and the stirring was continued for 0.5h, after which the solution was transferred to a stainless steel autoclave, sealed and heated at 200°C Heat the reaction for 8 hours, cool to room temperature after the reaction, and obtain black magnetic powdery solid particles, wash the solid particles with ethanol and water three times, and finally dry them under vacuum at 60°C for 12 hours to obtain magnetic microspheres;

[0054] (2) Preparation of xylan quaternary ammonium salt (QX): Place 0.33g xylan in a three-necked flask, add 10mL of anhydrous DMSO, and dissolve in an oil bath at 95°C for 1.5h under stirring conditions to obtain light The yellow solution was lowered to room temperature, then 200 μL...

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Abstract

The invention belongs to the technical field of magnetic nano functional materials and discloses a xylan hyamine nanometer magnetic particle and a preparing method thereof. The preparing method comprises the steps that FeCl3.6H2O is dissolved in glycol, anhydrous sodium acetate is added to carry out a reaction under a sealed condition at the temperature of 170-220 DEG C, and produced powder solid particles are washed and dried to obtain magnetic microspheres; quaternization modification is carried on an epoxy group hyamine compound for dissolving xylan, and xylan hyamine is obtained; the xylan hyamine is dissolved in distilled water, the magnetic microspheres are added, and even ultrasonic blending is carried out to obtain a water phase; the water phase is dripped into an oil phase with surfactant added under the stirring condition, white emulsion is obtained, a cross-linking agent is added in the emulsion to carry out a cross-linking reaction, reaction products are dispersed in water after demulsification is carried out, freezing drying is carried out, and the xylan hyamine nanometer magnetic particle is obtained. According to the preparing method, raw materials are easy to obtain, the technology is simple, and good industrial application prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of magnetic nano functional materials, and in particular relates to a xylan quaternary ammonium salt nano magnetic particle and a preparation method thereof. Background technique [0002] With magnetic nanoparticles (such as Fe 2 o 3 , Fe 3 o 4 etc.) are magnetic media, which can be combined with various carrier materials to form functional materials with magnetic guidance, such as magnetic capsules, magnetic liposomes, magnetic microspheres, etc. Due to the good super compliance and easy surface functionalization of such magnetic nanoparticles, it has great application value in the field of drug delivery systems, especially targeted drug delivery, and this type of magnetic nanomaterials can be further developed. Combined with antibodies to form immune magnetic nanoparticles, which play an important role in clinical and biomedical fields. [0003] In biological research, magnetic nanoparticles are inorg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/42C08B37/14C08J3/24C08J3/16A61K47/36A61K47/04
Inventor 彭新文马纪亮钟林新林佳纯孙润仓
Owner SOUTH CHINA UNIV OF TECH
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