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Method for preparing carbon/calcium phosphate/ferroferric oxide composite structured nano particles

A technology of ferric tetroxide and composite structure, which is applied to preparations for in vivo experiments, medical preparations without active ingredients, and medical preparations containing active ingredients, etc., to achieve good dispersibility, good light-heat conversion ability, The effect of the simple method of synthesis

Inactive Publication Date: 2016-12-14
NORTHEAST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, there are no literature and patent reports using this method to synthesize highly dispersed carbon / calcium phosphate / ferric oxide composite nanoparticles

Method used

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  • Method for preparing carbon/calcium phosphate/ferroferric oxide composite structured nano particles
  • Method for preparing carbon/calcium phosphate/ferroferric oxide composite structured nano particles
  • Method for preparing carbon/calcium phosphate/ferroferric oxide composite structured nano particles

Examples

Experimental program
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Effect test

Embodiment 1

[0022] In a 100 mL round bottom flask, 5 mg calcium hydroxide, 30 mg polyacrylic acid and 15 mL deionized water were added sequentially, at 25 o C under magnetic stirring for 6 min until the solution was clear and transparent. Then, 30 mL of isopropanol was slowly added dropwise to the reaction solution under magnetic stirring. After the dropwise addition, 5 mg of ferrous chloride was added to the solution. After stirring at room temperature for 1 h, 6 mg of diammonium hydrogen phosphate was added to the solution. , stirred at room temperature for 8 h. Then the reaction solution was centrifuged (7000 rpm, 10 min), and the obtained precipitate was o After drying in a C oven for 10 h, they were then calcined at 500 °C for 10 h under the protection of argon to obtain carbon / calcium phosphate / ferric oxide composite nanoparticles.

Embodiment 2

[0024] In a 100 mL round bottom flask, 10 mg calcium hydroxide, 50 mg polyacrylic acid and 30 mL deionized water were added sequentially, at 25 o C under magnetic stirring for 10 min until the solution was clear and transparent. Then, 60 mL of isopropanol was slowly added dropwise to the reaction solution under magnetic stirring. After the dropwise addition, 10 mg of ferrous chloride was added to the solution. After stirring at room temperature for 1 h, 12 mg of diammonium hydrogen phosphate was added to the solution. , stirred at room temperature for 10 h. Then the reaction solution was centrifuged (8000 rpm, 10 min), and the obtained precipitate was o After drying in a C oven for 15 h, they were then calcined at 700 °C for 8 h under the protection of argon to obtain carbon / calcium phosphate / ferric oxide composite nanoparticles.

Embodiment 3

[0026] Add 8 mg of calcium hydroxide, 40 mg of polyacrylic acid and 20 mL of deionized water to a 100 mL round-bottomed flask successively, at 25 o C under magnetic stirring for 10 min until the solution was clear and transparent. Then, 50 mL of isopropanol was slowly added dropwise to the reaction solution under magnetic stirring. After the dropwise addition, 8 mg of ferrous chloride was added to the solution. After stirring at room temperature for 1 h, 10 mg of diammonium hydrogen phosphate was added to the solution. , stirred at room temperature for 12 h. Then the reaction solution was centrifuged (9000 rpm, 5 min), and the obtained precipitate was o After drying in a C oven for 12 h, they were then calcined at 600 °C for 6 h under the protection of argon to obtain carbon / calcium phosphate / ferric oxide composite nanoparticles.

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Abstract

The invention provides a method for preparing carbon / calcium phosphate / ferroferric oxide composite structured nano particles, and application of the nano particles. The method comprises the following steps: by taking calcium hydroxide, polyacrylic acid, isopropanol, ferrous chloride and diammonium phosphate as raw materials, performing calcining, mixing, drying and the like, thereby obtaining the carbon / calcium phosphate / ferroferric oxide composite structured nano particles by using the simple method. The prepared product is uniform in particle size, high in photo-thermal conversion efficiency and good in biocompatibility, and has very good application prospects in fields such as photo-thermal treatment, medicine conveying and biological imaging.

Description

technical field [0001] The invention belongs to the technical field of nanocomposite materials, and in particular relates to a preparation method of carbon / calcium phosphate / ferric oxide composite structure nanoparticles. Background technique [0002] Cancer is a major disease that endangers human health. Regardless of gender, age, or social status, cancer directly or indirectly affects people's lives. Since the 1970s, the cancer mortality rate in my country has been continuously increasing. According to statistics, in 2011, there were 3.37 million new cases of malignant tumors and 2.11 million deaths in my country. With the increasing harm of cancer in the world, it has not only It is not only a personal health problem, but also a huge burden on the family and society. Therefore, the use of new technologies to improve the existing clinical methods of cancer early warning and early diagnosis, metastasis monitoring, curative effect prediction and effective treatment is a maj...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K49/08A61K49/18A61K41/00A61K47/02A61K47/04A61P35/00
CPCA61K41/0052A61K47/02A61K49/08A61K49/1818
Inventor 李鹿王春刚苏忠民
Owner NORTHEAST NORMAL UNIVERSITY
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