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Silver nanoparticles are the most demanded product for its usage in the field of medicines. Silver nanoparticles are mainly smaller than 100 nm and consist of 20–15,000 silver atoms. It has unique chemical, physical and biological properties as compared to their parent materials in bulk. It is also rich in thermal, catalytic and optical properties which are basically influenced by its shape and size.

Moreover, it is also rich in antimicrobial broad-spectrum ability. Nowadays, it is highly demanded its wide use in sterilizing nanomaterials in consumable items and therefore, people buy silver nanoparticles online. It is also used in medical products. Silver nanoparticles are also used in products like personal care products, food storage bags, textiles, and refrigerator surfaces.
 

1. Optical Probes – People buy silver nanoparticles online because it is used as probes for metal-enhanced fluorescence and surface-enhanced Raman scattering. When silver nanoparticles are compared to the other nanoparticles, it is seen that the silver nanoparticles are more advantageous for a probe, such as high field enhancements, sharper extinction bands, and higher extinction coefficients.

2. Antibacterial agents – Buy silver nanoparticles online to use it in medical products and consumer products as it is a good sterilizing agent. It is used in products like storage bags for food, textiles, personal care items, and refrigerator surfaces. The sustained release of the free ions of silver from nanoparticles has antibacterial properties in it.
 
3. Catalyst – These nanoparticles have catalytic redox properties in it. The chemical environment of the nanoparticle plays an important role in their catalytic properties.

Properties of silver nanoparticles

Due to the following two main properties, it is important to buy silver nanoparticles online. These are - a. optical properties and b. antibacterial properties.

A particular wavelength of light that induces a coherent oscillation of free electrons collectively, causes a separation of charge with respect to the ionic lattice which then forms a dipole oscillation in the direction of the electric field of light when silver nanoparticles are exposed to it.
 
The silver nanoparticles with its antibacterial effects are generally used o control the growth of bacteria in different applications like surgical application, treating a burn, dental work, wounds, and biomedical devices. If silver nanoparticles are introduced into the cells of bacteria, it induces structural and morphological changes in the greater amount and that ultimately leads to the death of the cells.