What's so unique about the colloidal gold solution?
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Author : Ada
Update time : 2023-02-12 18:25:45
What is a colloidal gold solution? Colloidal gold solution refers to the gold sol with a diameter of 11~50nm, which belongs to the heterogeneous phase heterogeneous system. 2~5nm gold sol is orange-yellow, orange at 10~20nm, and purplish red at 30~80nm. Colloidal gold, also known as gold sol, is a suspension of gold particles formed after the gold salt is reduced to gold. The colloidal gold particles comprise a basic gold core (atomic gold Au) and an ionic layer surrounded by the outside. Closely connected to the nuclear surface is the inner negative ion (AuCl2-), and the outer ionic layer H + is dispersed in the colloidal gold solution to maintain the suspension state of the colloid gold free in the sol. For colloid gold and immunoreactive substances (antigen or antibody).
Main uses of colloidal gold solution Gold nanoparticles have high catalytic activity, especially low temperature, and have a good application prospect in chemical reactions. When the gold nanoparticles are loaded on activated carbon, titanium dioxide, zinc oxide, alumina, and other carriers, the surface area increases greatly, the melting point decreases, the surface fluidity increases; the electron orbit of the atoms overlap each other decreases, the behavior of the atoms is close to a single atom, but different from the multiple atomic groups; the number of atoms in contact with the carrier increases; Gold nanoparticles have good electrical conductivity, high surface chemical activity and other special properties, which can greatly reduce the distance between electron donor and acceptor, improve the transmission rate between electrons and electrodes, and has an important application in improving the performance of biosensors. Preparation method of nano-gold sol The template synthesis method is the use of the pore size of nanoscale to micron level of porous template materials, combined with electrochemical deposition, chemical deposition, and other means to make the material form a certain nanostructure on the pore wall of the template, and its most significant feature is that it can change the size and shape of the pore wall to synthesize the particle size distribution of nanoparticles; Price of colloidal gold solution The different price of colloidal gold solution purity is also different. The market price of the colloidal gold solution is in the process of dynamic change. The price of colloidal gold solution can be found on our company's official website. If you need it, you can ask us at any time. Colloidal gold solution supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including molybdenum Silicide, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for a high-quality and cost-effective colloidal gold solution, you are welcome to contact us or inquire at any time.
