Health and Wellness

Ag nanoparticles have high surface area relative to their mass, and they consistently release a steady level of silver ions into their environment, which accounts for their remarkable antimicrobial capabilities against an extensive array of bacteria. This makes them ideal for medical applications including wound dressings, antiseptics, disinfectants, drug delivery systems, medical devices, protective coatings, and many others.

Optics

Silver nanoparticles have the ability to support surface plasmons, which results in unique optical properties. At certain wavelengths, surface plasmons become resonant and then absorb or scatter incident light so strongly that individual nanoparticles can be seen using a dark field microscope. These scattering and absorption rates can be tuned by altering the shape and size of the nanoparticles. As a result, silver nanoparticles are useful for biomedical sensors and detectors and advanced analysis techniques such as surface-enhanced fluorescence spectroscopy and surface-enhanced Raman spectroscopy (SERS). What’s more, the high rates of scattering and absorption seen with silver nanoparticles makes them particularly useful for solar applications. The nanoparticles act like highly efficient optical antennas; when Ag nanoparticles are incorporated into collectors, it results in very high efficiencies.

Conductive Composites

Silver nanoparticles conduct electricity and they are easily dispersible in any number of other materials. Adding silver nanoparticles to materials such as pastes, epoxies, inks, plastics, and various other composites enhance their electrical and thermal conductivity.

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