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Method for preparing liquid metal nanoparticles from amino acid as ligand

A liquid metal and nanoparticle technology, applied in the direction of nanotechnology, can solve the problems of large particle size, low production scale and efficiency of liquid metal nanoparticles, and poor biocompatibility

Active Publication Date: 2019-12-31
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing liquid metal nanoparticles using amino acids as a ligand, aiming to solve the problems of existing liquid metal nanoparticles with low production scale and efficiency, large particle size and poor biocompatibility. question

Method used

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  • Method for preparing liquid metal nanoparticles from amino acid as ligand
  • Method for preparing liquid metal nanoparticles from amino acid as ligand

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Embodiment 1

[0025] This embodiment provides a method for preparing liquid metal nanoparticles using amino acids as ligands, which specifically includes the following steps:

[0026] (1) Take 100g of deionized water in a glass bottle, and dissolve 1g of cysteine ​​in the deionized water to obtain a transparent clear solution;

[0027] (2) adjust the pH of the solution in (1) to be 7, add 1g liquid metal (Ga 75 In 25 ).

[0028] (3) Add 300 g of zirconium beads with a diameter of 0.3 to 0.4 mm into the solution in step (2), and vibrate in a vibration mill for 2 hours to obtain liquid metal nanoparticles with a particle size of 300 nm.

Embodiment 2

[0030] This embodiment provides a method for preparing liquid metal nanoparticles using amino acids as ligands, which specifically includes the following steps:

[0031] (1) Take 100g of deionized water in a glass bottle, and dissolve 1g of lysine in the deionized water to obtain a transparent clear solution;

[0032] (2) adjust the pH of the solution in (1) to be 3, add 1g liquid metal (Ga 75 In 25 ).

[0033] (3) Add 300 g of zirconium beads with a diameter of 0.3 to 0.4 mm into the solution in step (2), and vibrate in a vibration mill for 2 hours to obtain liquid metal nanoparticles with a particle size of 250 nm.

Embodiment 3

[0035] This embodiment provides a method for preparing liquid metal nanoparticles using amino acids as ligands, which specifically includes the following steps:

[0036] (1) Take 100g of deionized water in a glass bottle, dissolve 1g of phenylalanine in deionized water, heat and stir at 50°C to obtain a transparent clear solution;

[0037] (2) adjust the pH of the solution in (1) to be 3, add 1g liquid metal (Ga 75 In 25 ).

[0038] (3) Add 300 g of zirconium beads with a diameter of 0.3 to 0.4 mm into the solution in step (2), and vibrate in a vibrating mill for 2 hours to obtain liquid metal nanoparticles with a particle size of 200 nm.

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Abstract

The invention discloses a method for preparing liquid metal nanoparticles from amino acid as a ligand. The method comprises the following steps: (1), the amino acid is dissolved in deionized water, and a clarified aqueous amino acid solution is obtained; (2), the pH of the aqueous amino acid solution is regulated to 2-10; (3), liquid metal and zirconium beads are dropwise added to the solution after pH regulation, the mixed solution is subjected to oscillation grinding, and the liquid metal nanoparticles with the particle size of 100-5,000 nm can be prepared. The invention further provides theliquid metal nanoparticles prepared with the method. According to the method for preparing the liquid metal nanoparticles from the amino acid as the ligand, the problems of lower production scale andefficiency, larger particle size and poorer biocompatibility of existing liquid metal nanoparticles are solved.

Description

technical field [0001] The invention relates to the technical field of liquid metal nanoparticles, in particular to a method for preparing liquid metal nanoparticles by using amino acids as ligands. Background technique [0002] Liquid metal has the advantages of high flexibility, deformability and low cytotoxicity, easy surface modification, low melting point for easy operation and processing, obvious temperature rise for infrared absorption, and can be degraded in weak acidic environment. received more and more attention. [0003] However, liquid metals are dense and have high surface tension, which is not conducive to dispersing into smaller nanoparticles. And it is quickly oxidized in water or air, and the adjacent particles are easy to agglomerate and produce precipitation. Many researchers have used various surfactants to modify liquid metal nanoparticles, but most of these surfactants are various chemical substances, which have certain biocompatibility problems. At...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/06B82Y40/00
CPCB22F9/06B82Y40/00
Inventor 常广涛徐兵兵李若欣
Owner SUZHOU UNIV
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