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Liquid metal nanoparticles and preparation method thereof

A liquid metal and nanoparticle technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as poor stability of liquid metal nanoparticles, and achieve enhanced stability and expanded applications. Effect

Active Publication Date: 2018-09-04
SHENZHEN UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a liquid metal nanoparticle and a preparation method thereof, aiming at solving the problem of poor stability of the existing liquid metal nanoparticle

Method used

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  • Liquid metal nanoparticles and preparation method thereof

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Embodiment 1

[0040] Use a syringe to draw 300 mg of liquid metal gallium into the sample bottle, then add 10 mL of dopamine solution with a concentration of 2 mg / mL, and then use a cell disruptor for 4 hours, and finally add 12.1 mg of 2-amino-2-( Hydroxymethyl)-1,3-propanediol to make the pH of the solution reach 8.5, and shake at room temperature for 6 hours to obtain polydopamine-modified liquid metal nanoparticles;

[0041] The liquid metal nanoparticles prepared above were left to stand for more than 24 hours, and the particles were still in a uniform state without obvious changes, indicating that the stability of the liquid metal nanoparticles was good.

[0042] In summary, the liquid metal nanoparticles provided by the present invention are liquid metal nano-droplets coated with polydopamine, and polydopamine can protect the liquid metal nano-droplets, thereby effectively enhancing the liquid metal nano-droplets. Stability, and because polydopamine contains a large number of functio...

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Abstract

The invention discloses liquid metal nanoparticles and a preparation method thereof. The preparation method comprises the following steps of providing liquid metal and a dopamine solution; adding theliquid metal into the dopamine solution and treating the liquid metal into a nano-liquid-droplet system; and adjusting the pH value of the system to be alkaline so as to enable dopamine to be subjected to self-polymerization reaction to obtain the liquid metal nanoparticles. According to the preparation method of the liquid metal nanoparticles, the problem of poor stability of existing liquid metal nanoparticles is solved.

Description

technical field [0001] The invention relates to the technical field of metal nanoparticles, in particular to a liquid metal nanoparticle and a preparation method thereof. Background technique [0002] Gallium and its alloys are a class of metal materials that are liquid at room temperature. They have important application values ​​in the fields of flexible electronics, soft robots, medical care, and energy. Especially, nano-scale droplets of liquid metals are incomparable with solid metal nanoparticles The advantages of deformability and degradability are widely used in the preparation of nano-medicines, conductive inks that can be sintered at room temperature, etc. However, because liquid metal nano-droplets are easily broken and agglomerated into large droplets, it is not conducive to the functional modification of nano-droplets, and gallium-based liquid metal nano-droplets still have disadvantages such as uneven size and poor stability during preparation. , thus greatly ...

Claims

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Application Information

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IPC IPC(8): B22F9/06B82Y30/00B82Y40/00
CPCB22F9/06B82Y30/00B82Y40/00
Inventor 周学昌尚文慧甘田生
Owner SHENZHEN UNIV
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