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Preparation method and application of nickel hydroxide inorganic nanoparticles with chiral optical activity in near-infrared region

A technology of inorganic nanoparticles and nickel hydroxide, applied in the field of material chemistry, can solve problems such as inability to limit energy conversion efficiency, and achieve the effect of wide application and simple preparation method.

Active Publication Date: 2021-08-13
JIANGNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the chiral signals of existing inorganic nanomaterials are mainly concentrated in the ultraviolet and visible light regions. Due to the limitation of penetration depth, the circularly polarized light in this band cannot be explored, researched and applied at the living level; secondly, it has been The chiral anisotropy factors of inorganic nanomaterials are distributed in the range of 10 -3 left and right, which greatly limits the energy conversion efficiency between light-inorganic nanomaterials-life systems

Method used

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  • Preparation method and application of nickel hydroxide inorganic nanoparticles with chiral optical activity in near-infrared region
  • Preparation method and application of nickel hydroxide inorganic nanoparticles with chiral optical activity in near-infrared region
  • Preparation method and application of nickel hydroxide inorganic nanoparticles with chiral optical activity in near-infrared region

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Embodiment 1

[0026] Synthesis of embodiment 1 chiral nickel hydroxide inorganic nanoparticles

[0027] Using L-GSH, D-GSH, and rac-GSH as raw materials, the corresponding nickel hydroxide inorganic nanoparticles with different chiral configurations and achirality were synthesized.

[0028] First prepare 100mg / mL NiCl 2 ·6H 2 O, the glutathione (GSH) solution of 100mg / mL, the sodium hydroxide solution (NaOH) of 40mg / mL, then the NiCl of 2.38mL 2 ·6H 2 0 and 4.50mL of GSH were added into 60mL of pure water respectively, and then 6mL of NaOH solution was added dropwise under stirring, and the stirring was continued until the color of the solution turned light green (this process kept the reaction solution in contact with the air), until the solution became For a uniform green colloidal solution, stop stirring.

[0029] Mix the reaction solution and isopropanol at a volume ratio of 1:2. After the solution becomes turbid, centrifuge at 7000rpm for 10 minutes, remove the supernatant, then re...

Embodiment 2

[0030] Example 2 Characterization and Analysis of Chiral Nickel Hydroxide Inorganic Nanoparticle Structure, Composition and Properties

[0031] The physical, chemical and optical properties of the nanoparticles prepared in Example 1 were confirmed and characterized by circular dichroism spectrometer, transmission electron microscope, X-ray electron spectrum analyzer, Fourier transform infrared spectroscopy, Raman and other instruments .

[0032] After the products synthesized with L-GSH, D-GSH, and rac-GSH were washed respectively, the circular dichroism spectrum was measured, and the circular dichroism spectrum of the nickel hydroxide inorganic nanoparticles modified by D- / L-glutathione and The corresponding anisotropy factor such as figure 1 Shown; D- / L-glutathione modified nickel hydroxide inorganic nanoparticles absorption spectrum as figure 2 shown.

[0033] figure 1 It clearly shows that the synthesized product has a certain strong chiral optical signal at 800-1300 ...

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Abstract

The invention discloses a preparation method and application of nickel hydroxide inorganic nanoparticles with chiral optical activity in a near-infrared region , and belongs to the technical field of material chemistry. The nickel hydroxide inorganic nanoparticles are directly prepared from a nickel ion solution, an alkaline solution and a glutathione solution through a one-step method. The synthesized nickel hydroxide inorganic nanoparticles have chiral optical activity in a near-infrared region, the preparation method is simple, and the application is wide; and the prepared material has very important significance and value for promoting the development of the fields of optics, life science, medicine and the like.

Description

technical field [0001] The invention relates to a preparation method and application of nickel hydroxide inorganic nanoparticles with chiral optical activity in the near-infrared region, and belongs to the technical field of material chemistry. Background technique [0002] Chirality exists widely in nature, especially in living systems, from small amino acid molecules to macroscopic organisms showing typical chiral characteristics. Chirality plays an important role in the development of physics, chemistry, optics, life science, medicine and other fields, especially in living systems. For example, in the famous thalidomide teratogenic event, R-type thalidomide has a central nervous system sedative effect and can alleviate the pregnancy reaction of pregnant women, while S-type thalidomide has a teratogenic effect. Due to the lack of awareness of chirality at that time, the teratogenic rate of European children increased sharply in the 1860s. [0003] With the development of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G53/04B82Y40/00G02B5/30
CPCC01G53/04B82Y40/00G02B5/30C01P2002/84C01P2004/04C01P2002/82C01P2002/85
Inventor 李斯林恒伟胥传来匡华徐丽广杜家仁
Owner JIANGNAN UNIV