Specific applications of nano-gold colloidal gold

Overview of colloidal gold nano gold solution

Nano-gold refers to tiny gold particles, with a diameter of 1-100nm, high electron density, dielectric properties and catalytic effect, and can be combined with a variety of biological macromolecules without affecting its biological activity. Various nano-gold particles of different particle diameters can be conveniently prepared by the reduction method from chloroauric acid, and the color varies from red to purple depending on the diameter.

The colloidal gold nano-gold solution uses high-purity gold as the raw material, and through a special new processing technology, the gold particle size is below 15nm, which greatly improves the inherent characteristics of gold catalysis, free radical scavenging, and dispersion.

The preparation method of Gold Nanoparticles mainly uses reducing agents, such as sodium citrate, sodium borohydride, etc. to reduce chloroauric acid HAuCl4·4H2O. Under the action of reducing agent, chloroauric acid HAuCl4·4H2O can polymerize into gold nanoparticles of a certain size to form a negatively charged hydrophobic gel solution. It becomes a stable colloidal state due to static electricity, so it is called Colloidal gold.

Application of colloidal gold nano gold solution

The unique biochemical and physical and chemical properties of gold nanoparticles make it play a unique role in immunoanalysis, biosensors, DNA recognition and detection, genes and many other aspects. Gold nanorods have a strong adsorption effect on proteins and DNA, and will not change the properties of the adsorbed substances. As a carrier with excellent properties, gold nanorods have also been extensively studied.

Nano gold is used as a colorant for food, glass and biology.

Nano-gold is used as a gene identification technology.

Nano gold is used to refine environmental purification products.

Nano gold is used as a preservative for food and cosmetics.

Nano gold added to cosmetics can play a role in whitening, anti-aging and moisturizing.

Production of antibacterial, antibacterial, anti-inflammatory drugs, medical equipment, health care products, beauty care equipment.

We produce all kinds of daily necessities, food and beverages that are closely related to people's lives. Such as nano-gold soap, toothbrushes, various facial masks.

Biological applications

1. Nano gold is used in capillary electrophoresis to detect 8-OHdG in urine

2. Research on the application of nano-gold to protein fiber dyeing

3. Research progress in the application of gold nanoparticles in tumor diagnosis and treatment (gold nanoparticles are a good targeting agent, which can achieve both passive and active tumor targeting: high permeability and retention caused by nanoparticle size Effect (enhanced permeability and retention effect, EPR) can achieve passive tumor targeting, allowing gold nanoparticles to be selectively distributed in tumor tissues to increase drug efficacy and reduce system side effects. In addition, after surface modification of gold nanoparticles, the target can be used To achieve active tumor targeting to molecules, to specifically bring drugs or radiation to the tumor site, to achieve the purpose of tumor targeted therapy. The binding energy of the 4f orbitals at the edge and top sites of the gold nano clusters is relatively low. The Au-S bond formed by the site has relatively low bond energy and is prone to dissociation, which has a great impact on the stability and ligand exchange of Au-MMPCs. Au-MPCs have small particle size and good biocompatibility The advantage of Au-MPCs is to modify the surface of Au-MPCs with sulfhydryl or disulfide compounds to form biologically active Au-MMPCs. These biologically active Au-MMPCs interact with the transporter and the cell membrane, and can be absorbed by electrostatic adsorption and endocytosis. The transporter is delivered to the cell and the nucleus, and the delivery and release of the targeted drug depends on the action of Au-MPCs.)

4. Nano-gold bio-probe and its application (through surface modification, the nano-gold is positively charged, thereby combining with the negatively charged protein to make a gold probe for electron microscopy)

5. The application of nano-gold in biosensors (colloidal gold enhances the detection sensitivity of DNA biosensors, nano-level gold particles are marked on DNA molecules, which can significantly increase the effective mass of the analytical molecule, thereby enhancing the quality sensitivity. Colloidal gold It can provide an environment similar to that which can maintain the stability of proteins, so that the proteins adsorbed on the surface can maintain their biological activity, and can enhance the detection sensitivity of the lactic acid biosensor. Glucose oxidase made by modifying the platinum electrode with gold nanoparticles (GOD) Biosensor has the advantages of high sensitivity and fast speed.)

6. The application progress of gold nanoparticle in biomarker analysis (in addition to the surface effect and quantum size effect of general nanoparticles, gold nanoparticles also have good biocompatibility. Because biological macromolecules and functionalization are both in the nano dimension When functionalized nano-gold particles are added to the corresponding biological system to have a directional adsorption effect and an enrichment effect, etc. Both chemical or physical adsorption can be used to prepare biological/nano composite materials that are stable and have a certain quantitative relationship.

Colloidal gold nano gold solution price

The price of colloidal gold nano-gold solution varies randomly with factors such as production cost, transportation cost, international conditions, exchange rate, and market supply and demand of colloidal gold nano-gold solution. Tanki New Materials Co.,Ltd. aims to help various industries and chemical wholesalers find high-quality products by providing a full range of products. If you are looking for colloidal gold nano-gold solution, please contact us to get the latest price of colloidal gold nano-gold solution.

Colloidal gold nano gold solution supplier

As a global supplier of colloidal gold nano-gold solutions, Tanki New Materials Co.,Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced and engineering materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metals, etc.), high-purity targets and functional materials. Ceramics and structural equipment, and provide OEM services.