Preparation method of nanometer gold bar mainly made of (200) crystal face

A technology of nano-gold rods and crystal planes, applied in the field of high-yield synthesis and preparation of nano-gold rods, to achieve the effects of strong operability, simple and easy preparation methods, and controllable shape and size
CN102398042AActive Publication Date: 2012-04-04NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
Publication Date
2012-04-04

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Abstract

The invention discloses a preparation method of a nanometer gold bar mainly made of (200) crystal face. The method is: adding certain amount of surface active agent, silver salt solution and weak reductant into gold salt solution so as to synthesize growth solution, thus while gold salt is under protection of surface active agent, Au+ or Au3+ is reduced to gold atom by the weak reductant in the growth solution; then adding gold seed into the growth solution, wherein the gold seed is synthesized by adding certain amount of surface active agent and reductant into the gold salt solution, under the induction of silver ion, the surface active agent carrying gold atoms is absorbed on the gold seed which is taken as a growing point, so that a nanometer gold bar mainly made of (200) crystal face is obtained. The method needs temperate condition and is easy to operate, capable of producing nanometer gold bar mainly made of (200) crystal face with controllable shape and size, good water-solubility and sound dispersibility with a high yield. It can be applied into fields of biological analysis, biomedical diagnosis and imaging, biomedical cure, environmental science and analytical science.
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Description

technical field

[0001] The invention relates to the field of synthesis of nanomaterials, in particular to a high-yield synthesis and preparation method and application of nano gold rods mainly based on (200) crystal planes. Background technique

[0002] Gold nanoparticles have excellent optical, magnetic, catalytic and structural properties, and can be combined with a variety of biological macromolecules without affecting their biological activity. Gold nanoparticles with unique physical and chemical properties and superior biocompatibility are widely used in the fields of immunolabeling and rapid detection of food safety. The different structures and morphologies of gold nanoparticles present diverse physical and chemical properties. Therefore, the synthesis of gold nanoparticles with novel structures and different morphologies is of great practical significance for the application in the fields of biomedicine and environmental food safety detection.

[0003] At present, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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