"Metallic nanoparticles" are very tiny particles made of metal, like gold or silver. They are so small that they cannot be seen with the naked eye and require special tools to observe them. These particles have unique properties due to their size, which make them useful in various applications such as electronics, medical treatments, and environmental protection.
Full definition
In most cases, industrial production
of metallic nanoparticles involves chemical reduction in liquid solutions, which requires the design of product - specific solutions.
The Ag and Cu nanoparticles showed a higher efficiency in bactericidal activities against E. coli, S. aureus and C. albicans compared to Ag and
Cu metallic nanoparticles obtained without chitosan mediation.
The finding was quite surprising, team member Orlin Velev says, considering that «nothing was expected to happen with
waterborne metallic nanoparticles in the AC electric field because the force between these tiny particles is so small.»
Rice University chemists who developed a unique form of graphene have found a way to
embed metallic nanoparticles that turn the material into a useful catalyst for fuel cells and other applications.
LANP researchers study light - capturing nanomaterials,
including metallic nanoparticles that convert light into plasmons, waves of electrons that flow like a fluid across the particles» surface.
An important class of these nanoreactors has a «yolk & shell» architecture like an egg: a catalytically
active metallic nanoparticle is surrounded by a shell consisting of a polymeric network.
Electrochemically modifying
individual metallic nanoparticles and pairs of such nanoparticles enabled reversible tuning of their optical properties, including charge transfer plasmon formation in nanoparticle pairs.
The solvent system could improve the combined use of
metallic nanoparticles and DNA based materials.
For example,
some metallic nanoparticles convert light into plasmons, waves of electrons that flow like a fluid across a particle's surface.
VTT Technical Research Centre of Finland Ltd has developed a new, cost - efficient method of producing various types of
metallic nanoparticles.
Metallic nanoparticles are some of the smallest particles.
By applying an innovative theoretical analysis to observations from a first - of - its - kind experimental setup, LANP graduate student Bob Zheng and postdoctoral research associate Alejandro Manjavacas created a methodology that solar engineers can use to determine the electricity - producing potential for any arrangement of
metallic nanoparticles.
«One of the interesting phenomena that occurs when you shine light on
a metallic nanoparticle or nanostructure is that you can excite some subset of electrons in the metal to a much higher energy level,» said Zheng, who works with LANP Director and study co-author Naomi Halas.