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Prussian blue nano-scale hollow olivary microballoons

A technology of Prussian blue and rugby, applied in the direction of medical preparations of non-active ingredients, cyanic acid/isocyanic acid, electrochemical variables of materials, etc., can solve the problem that the synthesis of Prussian blue nano hollow rugby has not been reported yet, and achieve easy operation , good controllability of particle size and low cost

Inactive Publication Date: 2012-02-08
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Prussian blue nanospheres, nanoblocks, nanosheets, mesogens, etc. have been recorded in the above literatures, but the synthesis of Prussian blue nanohollow rugby has not been reported so far.

Method used

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  • Prussian blue nano-scale hollow olivary microballoons
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  • Prussian blue nano-scale hollow olivary microballoons

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The preparation of embodiment 1 Prussian blue nano hollow rugby

[0029] (1) Preparation of cross-linked polyacrylamide microspheres

[0030] Using acrylamide (AM) as a monomer, N,N'-methylenebisacrylamide (MBA) as a crosslinking agent, ammonium persulfate (APS) as an initiator, and ethanol as a solvent, polypropylene is prepared by dispersion polymerization technology Amide microspheres. A typical synthesis process is as follows: Add 0.375 g of acrylamide (AM), 0.125 g of cross-linking agent MBA and 9.5 mL of absolute ethanol into a 50 mL round-bottomed flask, shake to dissolve, blow nitrogen gas under magnetic stirring for 20 min to remove the dissolved solution. Then add 1.91 mg APS, continue to blow nitrogen for 10 min, and then add 0.1 mL TMEDA (tetramethylethylenediamine) to the solution. Place in a 40 °C oil bath and stir overnight at a stirring speed of 600 rpm. The concentration of acrylamide monomer is 0.53 mol / L, and the ratio of acrylamide monomer to N,...

Embodiment 2

[0038] The preparation of embodiment 2 Prussian blue nano hollow rugby

[0039] (1) Preparation of cross-linked polyacrylamide microspheres

[0040] Add 0.12 g of acrylamide (AM), 0.04 g of cross-linking agent MBA and 9.5 mL of absolute ethanol into a 50 mL round bottom flask, shake to dissolve, blow nitrogen gas under magnetic stirring for 20 min to remove dissolved oxygen in the solution, and then add 1.91 mg APS, continue to blow nitrogen for 10 min, and then add 0.1 mL TMEDA (tetramethylethylenediamine) to the solution. Place in a 40 °C oil bath and stir overnight at a stirring speed of 600 rpm. The concentration of acrylamide monomer is 0.17 mol / L, and the ratio of acrylamide monomer to N,N′-methylenebisacrylamide crosslinking agent is 3:1.

[0041] (2) Synthesis of Prussian Blue Hollow Rugby

[0042] Add a magnetic stirring bar, 1 mL polyacrylamide / ethanol solution (polyacrylamide concentration: 50 g / mL) and 4 mL deionized water into a 10 mL glass vial, and add 1 m...

Embodiment 3

[0043] The preparation of embodiment 3 Prussian blue nano hollow rugby

[0044] (1) Preparation of cross-linked polyacrylamide microspheres

[0045] Add 0.375 g of acrylamide (AM), 0.375 g of cross-linking agent MBA and 9.5 mL of absolute ethanol into a 50 mL round bottom flask, shake to dissolve, blow nitrogen gas under magnetic stirring for 20 min to remove dissolved oxygen in the solution, and then add 1.91 mg APS, continue to blow nitrogen for 10 min, and then add 0.1 mL TMEDA (tetramethylethylenediamine) to the solution. Place in an oil bath at 40°C and stir overnight at a stirring speed of 600 rpm. The concentration of acrylamide monomer is 0.53 mol / L, and the ratio of acrylamide monomer to N,N′-methylenebisacrylamide crosslinking agent is 1:1.

[0046] (2) Synthesis of Prussian Blue Hollow Rugby

[0047] Add a magnetic stirring bar, 1 mL polyacrylamide / ethanol solution (polyacrylamide concentration: 50 g / mL) and 5 mL deionized water into a 10 mL glass vial, and ad...

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Abstract

The invention discloses prussian blue nano-scale hollow olivary microballoons, and belongs to the technical field of prussian blue materials. A preparation method of the prussian blue nano-scale hollow olivary microballoons comprises the following steps that 1, acrylamide as a monomer, N,N'-methylenebisacrylamide as a cross-linking agent, ammonium persulfate as an initiator and ethanol as a solvent are prepared into crosslinked polyacrylamide hydrogel microballoons by a dispersion polymerization technology; 2, hydrogel microballoon / ethanol suspending liquid is added with a Fe<3+> salt aqueoussolution; 3 the mixed solution obtained by the step 2 is stirred violently for one night so that the crosslinked polyacrylamide hydrogel microballoons swelled by Fe<3+> deform; 4, a potassium ferrocyanide aqueous solution is added dropwisely into the mixed solution treated by the step 3 to form prussian blue shells; and 5, the solvent is removed so that the prussian blue nano-scale hollow olivarymicroballoons are obtained. The preparation method of the prussian blue nano-scale hollow olivary microballoons has the advantages of simple operation, low cost, good adaptability for large-scale production, and controllability of microballoon sizes. The prussian blue nano-scale hollow olivary microballoons have nano-scale short axis sizes and micron-scale long axis sizes, and can be utilized widely for drug slow release, sensors, electrode materials and the like.

Description

technical field [0001] The invention relates to a Prussian blue nano particle, in particular to a Prussian blue nano hollow rugby prepared by a special method. Background technique [0002] Prussian blue has low toxicity, magnetism, reversible redox and other properties, and can be widely used in biofuel cells, sensors and other fields. The properties of Prussian blue particles largely depend on their shape and size, and the synthesis of Prussian blue structures with controllable shape and size (especially those with asymmetric shapes) has great practical and scientific significance. [0003] Since Stephen Mann first prepared Prussian blue nanocubic particles by reverse emulsion technology in 2000 (Angew. Chem. Int. Ed. 2000, 39:1793-1796), researchers have successfully synthesized various shapes of Prussian blue Nanoparticles, such as Prussian blue nanocubes, Prussian blue nanorods, Prussian blue sheets with two-dimensional structure, Prussian blue nanodisks, etc. Talham ...

Claims

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Application Information

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IPC IPC(8): C01C3/14A61K47/04G01N27/30
Inventor 梁国栋刘婷婷张蕾伍青
Owner SUN YAT SEN UNIV
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