High Purity Colloidal Gold Nano Gold Solution CAS 7440-57-5

Overview of Colloidal Gold Nano Gold Solution:

Nanogold refers to gold atoms or molecules less than 50 nanometers in diameter. Compared with ordinary gold bullion or gold wire, the size of nanogold is very small, but its chemical composition and properties are the same as ordinary gold. Nanogold has important application value in many fields because of its small size and special physical properties. 

The side effect of nanogold makes it have unique physical and chemical properties. For example, the color and optical properties of gold nanoparticles change significantly with the decrease in size, with an obvious blue shift phenomenon. The large surface area of nanogold makes it have higher chemical reactivity and can catalyze chemical reactions more effectively. In addition, nanogold also has good electrical conductivity and electrochemical properties, which can be used to manufacture high-efficiency and sensitive electrodes and sensors.

Features of Colloidal Gold Nano Gold Solution:

Appearance: The nano-gold solution appears as a red transparent liquid instead of the traditional golden yellow.

Particle size: The particle size of the nano-gold solution is usually between 10nm and 12nm.

Solid content: The solid content of the nano-gold solution can be controlled, ranging from 9% to 99%.

Safety: The nano-gold solution is non-toxic, tasteless, safe and reliable, and has even obtained oral certification from the US FDA, showing its good safety for human consumption and skin contact.

Stability: The color of the nano-gold solution is stable, not easy to fade; the performance is stable, and the effect is lasting.

Catalysis: nano-gold solution has a strong catalytic property and can decompose CO gas, and nano-gold particles also have a good function of removing free radicals in the human body.

Antibacterial: Besides having the same antibacterial properties as nano silver, nano gold solution shows good bactericidal and sterilization effects.

Advantages of Colloidal Gold Nano Gold Solution:

Biocompatibility and safety: nano-gold solution is non-toxic, tasteless, safe, and reliable, and it even obtained the oral certification of the United States FDA, showing its good safety for human consumption and skin contact.

Catalytic effect: nano-gold solution has a strong catalytic property and can decompose CO gas, and nano-gold particles also have a good function of removing free radicals in the human body. 

Wide range of applications: nano-gold solution in food, cosmetics, biological colorants, genetic material identification technology, environmental purification products refining, food and cosmetics preservatives, antibacterial, antibacterial drugs, medical equipment, health products, beauty care equipment, and other fields have a wide range of applications.

Application of Colloidal Gold Nano Gold Solution :

Nano-gold solution is a kind of solution containing nano-gold particles, which has unique physical and chemical properties, so it has important application value in many fields. The following are some application areas of nano-gold solutions: 

Biomedical field: Nano-gold solution has a wide range of applications in the biomedical field. For example, the nano-gold solution can be used to prepare drug carriers, which can carry drugs on the nano-gold particles through the surface modification to achieve the directional delivery and release of drugs. In addition, the nano-gold solution can also be used to prepare biological imaging contrast agents to improve the resolution and contrast of medical imaging. 

Catalytic field: Nano-gold solution has excellent catalytic performance and can be used to catalyze oxidation, reduction, hydrogenation, and other chemical reactions. Because of the high activity and selectivity of nano-gold catalysts, it has been widely used in the chemical industry, energy, environmental protection, and other fields. 

Electronic field: Nano-gold solution can prepare high-performance electronic devices, such as nano-gold wires, nano-gold capacitors, nano-gold solar cells, and so on. In addition, nano-gold solutions can also be used to manufacture biochips and sensors, improving the sensitivity and stability of devices. 

Food and cosmetics: The nano-gold solution can be used to prepare preservatives and antioxidants for food and cosmetics and can also be used to prepare nutritional supplements and health products. 

In environmental purification, nano-gold solutions can be used to prepare environmental purification products, such as nano-gold catalysts and nano-gold adsorbents, to remove harmful substances in air, water, and soil.

Company Profile：

Synthetic Chemical is a trusted global chemical material supplier & manufacturer with over 12 years of experience providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.

The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory with advanced testing equipment, and an after-sales customer service center.

If you are looking for high-quality Nano-gold solution , please feel free to contact us or click on the needed products to send an inquiry. 

Payment Term：

L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment Term：

By sea, by air, by express, as customers request.

Storage Conditions：

1) Store in a dry environment at room temperature.

2) Avoid damp and high temperatures.

3) Use immediately after opening the inner packing bag.

FAQ：

Q1:

What is the difference between nano gold solution and nano silver solution? 

Color: The color of the nano-gold solution varies according to the particle size: small particle size of nano-gold (2-5nm) yellow, medium particle size of nano-gold (10-20nm) wine red, larger particle size of nano-gold (30-80nm) purple. Nanosilver solution does not need to disperse and can be directly applied; it can be divided into colored nanosilver particles and colorless silver ion solutions.

Application: Nano-gold and nanosilver solutions are different in the field of application. Nano-gold solution has been applied in food, cosmetics, biological colorants, genetic identification technology, environmental purification products, and other fields. Because of its broad-spectrum bactericidal effect, the nanosilver solution is widely used in antibacterial coatings, textiles, and additives for various materials.

Antibacterial properties: Although the nano-gold solution has certain antibacterial properties, its antibacterial effect may be better than the nanosilver solution. Nanosilver can directly destroy the bacterial cell membrane and oxygen metabolism enzyme (-SH) combination, hinder bacteria and other microorganisms to amino acids, uracil, and other essential growth of nutrients absorption, thus inhibiting their growth, killing most bacteria, fungi, and other microorganisms.

Q2：

What is a nano-gold solution? 

The nano-gold solution is a stable and uniform neutral solution that disperses nano-gold particles with a particle size below 12nm into an aqueous solution, also known as colloidal gold, nano-gold colloidal aqueous dispersion solution, or water-soluble nano-gold. The gold nanoparticles in this solution are made of high-purity gold through a special processing process, and their particle size is usually below 15nm, so they have many unique physical and chemical properties, such as good biocompatibility, catalysis, conductivity, and so on.

The color of the nano-gold solution varies depending on the particle size, usually appearing as a red transparent liquid. It has good stability and uniformity and can be applied in many fields, such as biological coloring, biocatalysis, DNA analysis, beauty care, etc.

Q3：

What is nano gold material? 

Nano-gold refers to tiny particles of gold between 1 and 100 nanometers in diameter. This material uses high-purity gold as a raw material. Through special processing technology, the particle size of gold is made to less than 15 nanometers, which greatly improves the original characteristics of gold. Nano-gold has high electron density, dielectric properties, and catalysis and can be combined with various biological macromolecules without affecting biological activity.

Preparing nano-gold solutions usually involves reducing chloro-auric acid to gold nanoparticles by a reduction method and stabilizing the solution by adjusting the pH value and adding a protective agent. This solution has good stability and uniformity, and its color will vary from red to purple with the diameter of the gold nanoparticles.

Q4：

What are the advantages of nano-gold catalysts? 

High catalytic activity: Nano-gold catalysts have very high catalytic activity and can catalyze various chemical reactions at low temperatures and pressures. Due to the small size and high specific surface area of gold nanoparticles, they can provide more active sites, thus speeding up the chemical reaction.

High selectivity: The nano-gold catalyst can achieve selective catalysis of the target product, reducing or avoiding side reactions. This selective catalysis can reduce unnecessary by-product generation and improve reaction efficiency and purity.

Good stability: nano-gold catalysts usually have good stability and can maintain catalytic activity under harsh reaction conditions. This gives the nano-gold catalyst a longer service life and better reusability.

Q5：

How to choose nano gold particles? 

Particle size: The particle size of gold nanoparticles has an important effect on their physical and chemical properties. Different sizes of gold nanoparticles may have different colors, stability, and catalytic activity. Therefore, when selecting nano-gold particles, it is necessary to determine the appropriate particle size according to the specific application needs.

Shape and dispersion: The shape and dispersion of gold nanoparticles also affect their properties. The ideal gold nanoparticles should have good dispersion and avoid agglomeration. In addition, gold nanoparticles with specific shapes (such as spherical, rod-like, etc.) may have unique physical and chemical properties and must be selected according to application requirements.

Surface modification: The surface of gold nanoparticles can be modified to achieve functionalization, thereby improving its stability and catalytic performance. When selecting gold nanoparticles, it is necessary to consider the surface modification, such as whether the functional modification is carried out and the type and quantity of the modifier.

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