Method for preparing flower-like nanometer gold

A nano-gold, flower-like technology, applied in the field of nano-gold, can solve the problems of low yield, long reaction time, uneven particle size of gold nanoparticles, etc., and achieve easy separation, narrow particle size distribution, and easy control of morphology. Effect
CN101786168AInactive Publication Date: 2010-07-28XIAMEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
XIAMEN UNIV
Publication Date
2010-07-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing flower-like nanometer gold, relating to nanometer gold. The invention provides a method for preparing the flower-like nanometer gold covered by trypsinase with higher stability, better biocompatibility and more uniform particles. The flower-like nanometer gold consists of nanometer particles and is covered by the trypsinase, and the particle diameter of the product is between 100 and 200nm with uniform shapes and particle diameters. Chloroauric acid is mixed with trypsinase solution to obtain a mixed liquid of the chloroauric acid and the trypsinase solution; ascorbic acid is added into the mixed liquid of the chloroauric acid and the trypsinase solution to obtain reaction solution; and the reaction product is collected and washed to obtain the product of the flower-like nanometer gold.
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Description

technical field

[0001] The present invention relates to a kind of nano-gold, especially relates to a kind of one-step controlled synthesis of flower-shaped nano-gold by using trypsin and chloroauric acid as raw materials, ascorbic acid as a reducing agent, and water as a solvent. Background technique

[0002] As a typical mesoscopic system, nanoparticles have many unique properties different from bulk materials and individual molecules. As an extremely important member of the nanoparticle system, gold nanoparticles also have unique physical and chemical properties, such as good biocompatibility, making gold nanoparticles widely used in biomarkers and biosensing, and excellent electrical properties. , chemical properties make it used in electronic products and high-efficiency catalysts. At present, the preparation methods of nano gold mainly include: liquid phase reduction method, photochemical method, gas phase evaporation method, seed gold growth method, electrochemical re...

Claims

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