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Method for preparing hammer-shaped palladium nanoparticle by utilizing octreotide acetate as template

A technology of octreotide acetate and streptospheres, which is applied in the field of palladium nanomaterial preparation, can solve the problems of high price of reagents or solvents, limitation of nanomaterial preparation, unfavorable large-scale production, etc., and achieve easy control of reaction, typical shape and uniform size Effect

Inactive Publication Date: 2015-07-22
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the reagents or solvents involved in the synthesis and preparation of these nanomaterials will cause damage to the ecological environment. limit

Method used

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  • Method for preparing hammer-shaped palladium nanoparticle by utilizing octreotide acetate as template
  • Method for preparing hammer-shaped palladium nanoparticle by utilizing octreotide acetate as template
  • Method for preparing hammer-shaped palladium nanoparticle by utilizing octreotide acetate as template

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Effect test

Embodiment 1

[0017] Take 0.5 mg of octreotide acetate (produced by Gill Biochemical Shanghai Co., Ltd.) and dissolve it in 1 mL of pH2 hydrochloric acid solution to make the pH value of octreotide acetate 2; take 200 μL of the above octreotide acetate, add 200 μL of 2.5mM palladium dichloride solution (produced by Tianjin Chemical Reagent Factory); put the above-prepared solution into a water bath thermostatic oscillator, incubate at 130rpm., 13°C for 24h, dropwise add 25mM sodium borohydride as a reducing agent (Beijing Zhongsheng Huateng Technology Co., Ltd.) to reduce it from light yellow to gray-brown to obtain octreotide acetate-strand spherical palladium nanoparticles.

[0018] like figure 1 and figure 2 It can be seen that the particle size of the palladium particles is very small and uniformly distributed, image 3 Statistics show that octreotide acetate has a regular chain spherical structure with a diameter of about 55 nm. The chain spherical palladium nano-particles prepared...

Embodiment 2

[0020] Take 0.8 mg of octreotide acetate (produced by Gill Biochemical Shanghai Co., Ltd.) and dissolve it in 1 mL of pH3 hydrochloric acid solution to make the pH of octreotide acetate 3; take 200 μL of the above octreotide acetate solution, add 200 μL of 3mM palladium dichloride solution (produced by Tianjin Chemical Reagent Factory); put the above-prepared solution into a water-bath constant temperature oscillator, incubate at 200rpm, 25°C for 20h, dropwise add 25mM sodium borohydride as a reducing agent (Beijing Zhongsheng Huateng Technology Co., Ltd.) to reduce it from light yellow to gray-brown to obtain octreotide acetate-strand spherical palladium nanoparticles.

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Abstract

The invention discloses a method for preparing a hammer-shaped palladium nanoparticle by utilizing octreotide acetate as a template. The method mainly comprises the steps of: dissolving the octreotide acetate by using hydrochloric acid with pH of 2-3; adjusting the octreotide acetate into an acid solution; then adding a palladium dichloride solution into the well-adjusted solution according to a molar ratio of 1: 4-6; placing the mixed solution into a water-bathing constant temperature vibrator for incubation for 20-26 hours at 100-200 rpm and at 13-25 DEG C; and then adding a sodium borohydride reducing agent having a molar ratio to the octreotide acetate of 1: 45-55 into the well-incubated solution drop by drop to change the solution from light yellow to grey brown so as to finish the preparation of the octreotide acetate-hammer-shaped palladium nanoparticle. The method for preparing the hammer-shaped palladium nanoparticle by utilizing the octreotide acetate as the template has the advantages of a simple preparation process, low price, easy source, easy control of reaction, high yield and the like.

Description

technical field [0001] The invention relates to a preparation method of nanomaterials, in particular to a preparation method of palladium nanomaterials. Background technique [0002] In recent years, nanomaterials have received extensive attention due to their excellent chemical, optical, electrical and magnetic properties. With the deepening of the research on nanomaterials, the preparation methods of nanomaterials are also gradually diversified, and these methods can be applied to the preparation of metal nanomaterials. At present, according to the state of the materials in the reaction process, the preparation methods of metal nanomaterials can be roughly divided into three categories: solid-phase method, liquid-phase method and gas-phase method: solid-phase method mainly includes mechanical ball milling method, solid-phase reaction method. , large plastic deformation method, etc.; gas phase method mainly includes vacuum evaporation-condensation method, electrode sputter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/24
Inventor 高大威赵晓宁高发明李娜周景
Owner YANSHAN UNIV
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