Application and development history of Nano gold solution
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Author : NANOTRUN
Update time : 2021-07-02 09:24:39
Nano-gold solution is made of high-purity gold as raw material. After a special new processing technology, the gold is made into a particle size below 15nm, which greatly improves the inherent characteristics of gold, such as catalytic effect, free radical removal effect, dispersion effect, etc. Physical index Indicator name: AuS-WM1000 Appearance: purple liquid Solid content: ≥1000ppm PH: 7.0±0.5 Particle size: ≤15nm Density: 1.01g/ml Gold purity: 99.99% Preparation method Prepare a HAuCl4·4H2O solution with a concentration of 2.44×10-3 mol/L, a Na3C6H5O7·2H2O solution with a concentration of 3.43×10-2 mol/L, a PVP solution with a concentration of 1.00×10-4 mol/L, and the concentration is 0.391 mol/L NaBH4 solution is available for use. Add 10 mL of the chloroauric acid solution, 10 mL or no protective agent solution, and 80 mL of tri-distilled water into the beaker. Place the beaker on a digital speed constant temperature magnetic stirrer, stir while heating, and set the stirring speed to 600 r/min, heating to 75℃, constant temperature for 2 minutes, pipette a certain volume of reducing agent (Na3C6H5O7 or NaBH4) solution, quickly add it to the above mixture at once, start timing, keep the liquid color constant and continue heating for a period of time The total time is 9 minutes, stop heating, continue to stir for 5 minutes, stop stirring, cool to room temperature, the obtained liquid is Nano gold solution.
Characteristic Efficient catalysis; Free radical removal effect; Antibacterial effect; Strong antioxidant capacity; to promote metabolism; Corrosion resistance; Friction resistance; Anti-corrosion performance; Will not be allergic to any skin; Application Coloring agent for food, glass and organisms. Used for genetic identification technology. Used for the refining of environmental purification products. Preservative for food and cosmetics. When added to cosmetics, it has whitening, anti-aging, and moisturizing effects. Production of antibacterial, antibacterial, anti-inflammatory drugs, medical equipment, health care products, beauty care equipment. Produce all kinds of daily necessities, food, drinks, etc. which are closely related to people's lives. Such as Nano-gold soap, toothbrushes, various facial masks. Development History Since Paracelsus, the founder of modern European chemistry, an outstanding physician and chemist in the 16th century, prepared "drinking gold" for the treatment of mental illnesses, Nano gold solution has been on the stage of science. In 1857, when British scientist Faraday was studying Dalton’s theory, he used gold chloride to reduce a solution containing gold nanoparticles and found that after adding a small amount of electrolyte, the solution changed from ruby color to blue, and finally agglomerated to nothing. Color and the addition of gelatin and other macromolecular substances can prevent this change. Although the reason was not known at the time, his discovery laid the scientific foundation for the application of Nano-gold. In 1885, the Nano-gold solution was often used as the main ingredient in the treatment of alcoholism in the United States; in 1890, Dr. Koch discovered that Mycobacterium tuberculosis could not survive on the surface of gold; in 1890, Nano-gold was used to treat arthritis; in 1935, Chicago surgical expert Edward et al. discovered Nano gold solution can effectively relieve the patient's pain and strengthen the body. In 1939, Kausche and Ruska used an electron microscope to observe the tobacco mosaic virus labeled with gold particles, which was in the form of fine particles with high electron density. In 1971, Faulk and Taylor first used immunogold staining (IGS) to combine rabbit anti-Salmonella antiserum with Nano-gold particles, and used direct immunocytochemistry to detect the surface antigen of Salmonella, pioneering Nano-gold immunolabeling technology.
TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global chemical material supplier & manufacturer with over 12 years’ experience in providing super high-quality chemicals and Nanomaterials. The Nano gold solutionproduced by our company has high purity, fine particle size and impurity content. Please contact us if necessary.
