Similarities and Differences Between Colorless Nano Silver Solution and Colored Nano Silver Solution:
Shape and color
The silver particles in colorless nano silver solution mainly exist in the form of ions, and the solution is colorless and transparent. This form allows the colorless nanosilver solution to penetrate the cell’s interior and exert its antibacterial effect. However, the silver particles in the colored nanosilver solution mainly exist as particles, and the solution is light yellow or brown. The production of this color may be related to the concentration, size, and dispersion of silver nanoparticles.
Antibacterial effect
Both colorless nano silver solution and colored nano silver solution have antibacterial effects. Still, their antibacterial effect may differ due to different preparation technologies, silver ion concentration, and action mechanisms. The colored nano silver solution mainly destroys the cell structure of bacteria through the direct contact between silver nanoparticles and bacteria, to achieve the purpose of antibacterial. Studies have shown that silver nanoparticles in colored silver nano solutions can more easily enter the bacteria’s interior and cause greater damage to bacteria. Therefore, in some cases, the antibacterial effect of colored nano silver solution may be better than that of colorless nano silver solution.
Security
There are also some differences in safety between colorless nano silver solution and colored nano silver solution. Since silver ions in colorless nanosilver solutions are more easily absorbed and utilized by cells, their toxicity is relatively low. However, excessive colorless nanosilver solutions may still cause argyria, with symptoms such as nausea, vomiting, and diarrhea. In contrast, silver nanoparticles in colored nanosilver solutions are larger and less easily absorbed by cells, so their toxicity is relatively low. However, silver nanoparticles in colored silver nano solutions may pose other potential risks to the human body, such as causing allergic reactions or skin irritation.
Application field
There are also some differences in the application fields of colorless nano silver solution and colored nano silver solution. Because of its colorless and transparent properties, colorless nano silver solution is more suitable for occasions where it is necessary to maintain the appearance of transparency, such as eye care, oral care, and so on. At the same time, colorless nano silver solution is also widely used in medical dressings, medical devices, and other fields to promote wound healing and inhibit the growth of bacteria. Because of its unique color and antibacterial effect, colored nano silver solution is more suitable for occasions that require strong antibacterial, such as aquaculture, food processing and other fields. In addition, colored nano silver solution can be applied to environmental purification, sewage treatment, and other aspects to remove harmful substances and heavy metal ions in water.
Preparation process and cost
There are also differences in preparation process and cost between colorless nano silver solution and colored nano silver solution. Colorless nanosilver solutions are usually prepared by chemical reduction by reducing silver salts to silver ions, which are then dissolved in water. This preparation process is relatively simple and low-cost. Physical or chemical methods usually prepare the solution of colored silver nanoparticles and then disperse them in water. This preparation process is relatively complex and costly. Therefore, in practical applications, choosing the appropriate preparation process and cost is necessary according to the specific needs and scenarios.
Environmental impact
Colorless and colored nanosilver solutions also differ in terms of environmental impact. However, the silver nanoparticles in the solution of colored silver nanoparticles are large and not easily absorbed by organisms, so their impact on the environment is relatively small. However, no matter what form of nanosilver solution, it must be properly disposed of after use to avoid adverse environmental effects.
Silver ion concentration
The concentration of silver ions in colorless nanosilver solutions is usually low because the silver ions are converted to silver nanoparticles during the reduction process. The concentration of silver ions can be controlled by adjusting the concentration of silver salt and the amount of reducing agent. In contrast, the concentration of silver ions in colored nanosilver solutions may be higher because the silver particles in them are larger and not easily absorbed and utilized by cells.
The mechanism of action
Colorless nano silver solution:
The mechanism of action of colorless nano silver solution is mainly through the release of silver ions and antibacterial action. Silver ion has strong oxidation and antibacterial properties, which can destroy the cell wall and membrane of bacteria and inhibit the reproduction of bacteria. At the same time, silver ions can also bind to proteins and nucleic acids inside the bacteria, causing the bacteria to lose activity. These effects give the colorless nano silver solution a broad spectrum of antibacterial effects, killing various bacteria, viruses, and fungi.
Colored nano silver solution:
The mechanism of action of colored nano silver solution is mainly through the direct contact between silver nanoparticles and bacteria and the antibacterial effect. Silver nanoparticles have a large surface area and high surface energy, destroying their structure and causing bacterial death. In addition, silver nanoparticles can also enter the interior of the bacteria and bind to the proteins and nucleic acids inside the bacteria, further inhibiting bacterial reproduction. These effects make the colored nano silver solution have a strong antibacterial effect, especially suitable for killing many bacteria quickly.
Supplier of nano silver solution：
Synthetic Chemical Nano Technology Co. Ltd. is a trusted supplier and manufacturer of chemicals and Nanomaterials. They have over 12 years of experience providing high-quality chemicals.
Send us an inquiry if you’re looking for high-quality nano silver solution. ( sales5@nanotrun.com )