Colloidal Gold Nano Gold Solution CAS 7440-57-5

About 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.
 

Colloidal Gold Nano Gold Solution

TRUNNANO is a trusted global Colloidal Gold Nano Gold Solution supplier. Feel free to send an inquiry about the latest Nano Gold Solution price at any time.

Gold nanoparticles colour:
Gold nanoparticles or au nanoparticles can look red, orange, or even blue. The color depends on the size and shape of the nanoparticles and the distance between them.

Product Performance of Colloidal Gold Nano Gold Solution CAS 7440-57-5:

Technical Parameter of Colloidal Gold Nano Gold Solution:

Application of Colloidal Gold Nano Gold Solution :

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

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

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

Electronic field: Nanogold solutions can prepare high-performance electronic devices, such as nanogold wires, capacitors, nanogold solar cells, etc. In addition, nanogold 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, nanogold solutions can be used to prepare environmental purification products, such as nanogold catalysts and adsorbents, to remove harmful substances in air, water, and soil.

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Production Method of Colloidal Gold Nano Gold Solution :

There are many ways to produce nanogold solutions, among which the common methods include reduction, ion exchange, coordination, etc. These methods are briefly described below: 

Reduction method: In the solution containing gold ions (such as chloroauric acid), by adding reducing agents (such as ascorbic acid, sodium borohydride, etc.), the gold ions are reduced to gold atoms to prepare nanoparticle gold particles. The size of gold nanoparticles obtained by the reduction method is small, but aggregation may occur during preparation. 

Ion exchange method: In the solution containing gold ions (such as chloroauric acid), by adding ion exchange agents (such as thiourea, ethylenediamine, etc.), the gold ions are exchanged into gold atoms to prepare nanoparticle gold particles. The size of gold nanoparticles obtained by the ion exchange method is small, but the ion exchanger may affect the preparation process. 

Coordination method: In the solution containing gold ions (such as chlorauric acid), by adding coordination agents (such as polyethylpyrrolidone, polyethylimide, etc.), the gold ions are coordinated into stable complexes to prepare nanoparticle gold particles. The size of gold nanoparticles obtained by the coordination method is small, but the coordination agent may affect the preparation process.

Production Method of Colloidal Gold Nano Gold Solution :

There are many ways to produce nanogold solutions, among which the common methods include reduction, ion exchange, coordination, etc. These methods are briefly described below: 

Reduction method: In the solution containing gold ions (such as chloroauric acid), by adding reducing agents (such as ascorbic acid, sodium borohydride, etc.), the gold ions are reduced to gold atoms to prepare nanoparticle gold particles. The size of gold nanoparticles obtained by the reduction method is small, but aggregation may occur during preparation. 

Ion exchange method: In the solution containing gold ions (such as chloroauric acid), by adding ion exchange agents (such as thiourea, ethylenediamine, etc.), the gold ions are exchanged into gold atoms to prepare nanoparticle gold particles. The size of gold nanoparticles obtained by the ion exchange method is small, but the ion exchanger may affect the preparation process. 

Coordination method: In the solution containing gold ions (such as chlorauric acid), by adding coordination agents (such as polyethylpyrrolidone, polyethylimide, etc.), the gold ions are coordinated into stable complexes to prepare nanoparticle gold particles. The size of gold nanoparticles obtained by the coordination method is small, but the coordination agent may affect the preparation process.

Storage Condition of Colloidal Gold Nano Gold Solution:
1. Colloidal gold should be prevented from sunlight.
2. The product is for research and development purpose and the user must be a professional person (This person must know how to use this product.)
3. Nanoparticle solutions are suspensions of nanoparticles in water. These dispersions can be used as-is or diluted with suitable (compatible) solvents. Nanoparticles in dispersions can sometimes settle upon storage, in which case they can be mixed (shook up) before use.

Packing & Shipping of Colloidal Gold Nano Gold Solution:
We have many different kinds of packing which depend on the colloidal gold quantity.
Colloidal Gold Nano Gold Solution packing: 100ml/ bottle, 250ml/ bottle, 1000ml/ bottle or as your request.
Colloidal Gold Nano Gold Solution shipping: could be shipped out by express, by air, by air as soon as possible once payment receipt.

Packing & Shipping of Colloidal Gold Nano Gold Solution

Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
If you are looking for high-quality chemical powder, please feel free to contact us and send an inquiry. ([email protected])

FAQs of Colloidal Gold Nano Gold Solution:

Q: How is Colloidal Gold Nano Gold Solution made?

A: Colloidal gold is synthesized through several methods, including chemical reduction, laser ablation, and seed-mediated growth. The most common method involves reducing gold salts (like chloroauric acid) with a reducing agent (such as sodium citrate or borohydride) in an aqueous solution. This process results in the formation of stable gold nanoparticles that remain suspended in the liquid.

Q: What are the applications of Colloidal Gold Nano Gold Solution?

A: Colloidal gold has diverse applications across multiple industries: Biomedicine: Used in diagnostic tests (e.g., pregnancy tests), drug delivery systems, cancer therapy, and as contrast agents in electron microscopy. Electronics: Utilized in nanoelectronics for creating conductive inks and coatings. Cosmetics: Incorporated into skincare products for its antioxidant properties and potential anti-aging benefits. Environmental Science: Employed in sensors for detecting pollutants and contaminants.

Q: Is Colloidal Gold Nano Gold Solution safe for human use?

A: When used correctly, colloidal gold is generally considered safe for human use. However, safety depends on factors like particle size, concentration, and application method. In medical and cosmetic applications, it undergoes rigorous testing to ensure safety. Always follow manufacturer guidelines and consult professionals when using colloidal gold for therapeutic purposes.

Q: How should Colloidal Gold Nano Gold Solution be stored and handled?

A: Proper storage and handling are crucial to maintaining the stability and effectiveness of colloidal gold solutions: Storage: Store in a cool, dark place away from direct sunlight and heat sources. Many formulations require refrigeration to prevent aggregation of particles. Handling: Use clean, non-metallic tools to avoid contamination. Avoid exposing the solution to air for extended periods to prevent oxidation. Follow all safety protocols recommended by the manufacturer.