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A Method for Preparation of Liquid Gold Nanoparticles Using Atmospheric Pressure Low-Temperature Plasma Plume

A low-temperature plasma, nano-gold particle technology, applied in nanotechnology, metal processing equipment, transportation and packaging, etc., can solve the problem of low nano-gold formation rate, and achieve the effects of high aging efficiency, high industrial feasibility and simple operation.

Active Publication Date: 2020-12-04
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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Problems solved by technology

Since the diameter of the micro-plasma is about several hundred microns, the liquid surface area that can be treated is effective, and the generation rate of nano-gold is low.

Method used

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  • A Method for Preparation of Liquid Gold Nanoparticles Using Atmospheric Pressure Low-Temperature Plasma Plume
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  • A Method for Preparation of Liquid Gold Nanoparticles Using Atmospheric Pressure Low-Temperature Plasma Plume

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] A method for preparing liquid gold nanoparticles using atmospheric pressure low-temperature plasma plume, such as figure 1 and figure 2 shown, including the following steps:

[0031] Step 1, select a suitable container petri dish 7, after cleaning it, place the precursor 6 formed by mixing the chloroauric acid solution and the stabilizer in the petri dish 7;

[0032] Select the appropriate excitation source; among them, you can choose: pulse power supply (microsecond or nanosecond), DC power supply, AC power supply, RF power supply, microwave power supply, high-frequency high-voltage powe...

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Abstract

The invention relates to a method for preparing nano-gold particles, in particular to a method for preparing liquid nano-gold particles by using atmospheric pressure low-temperature plasma plume. A method for preparing liquid gold nanoparticles using atmospheric pressure low-temperature plasma plume, comprising the following steps: placing a precursor on a petri dish; placing the petri dish in a plasma discharge area; opening and adjusting a gas flow meter to control the gas cylinder Output stable and uniform working gas to the plasma device; turn on the high-voltage power supply to stimulate the generation of atmospheric pressure low-temperature plasma, and the plasma forms a plasma plume on the liquid surface of the precursor to reduce Au 3+ Generate gold nanoparticles; collect the generated gold nanoparticles, measure particle size and test stability. The preparation method of the invention accelerates the generation speed of the nano-gold particles and ensures the purity of the generated nano-gold. The method has the advantages of simple operation, high time efficiency and high purity, high industrial feasibility, and can be used for large-scale production.

Description

technical field [0001] The invention relates to the field of preparation of nano-gold particles, in particular to a method for preparing liquid nano-gold particles by using atmospheric pressure low-temperature plasma plume. Background technique [0002] Gold nanoparticles have the advantages of strong surface plasmon resonance effect, good chemical stability and functional modification. Gold nanoparticles have the advantages of strong surface plasmon resonance effect, good chemical stability and functional modification. The surface plasmon resonance effect of gold nanoparticles has a unique role in many aspects such as immunoassay, biosensor, DNA recognition and detection, gene therapy, including chemical sensing, biological imaging of cells and tissues, and targeting of antitumor drugs. Delivery, immunoassay, etc. At present, the most commonly used preparation method of gold nanoparticles is chloroauric acid (HAuCl 4 ) reduction method, commonly used reducing agents are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/14B22F1/00B82Y40/00
CPCB82Y40/00B22F9/14B22F1/054
Inventor 王瑞雪邵涛张珂高远严萍
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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