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Nobel nanoparticles

Nobel nanoparticles are important in the field of nanotechnology, which plays a major role in the improvement of innovative biosensing techniques to accomplish the requirement for further precise and extremely sensitive biomolecular diagnostics. A wide variety of biosensors can be developed through the distinctive physiological properties of metals at the nanoscale level which are as follows (i) other... [Pg.162]

The Nobel laureate Richard P. Feynman described, in a lecture delivered in 1959, the future of miniaturization. The published version of his lecture is called There s Plenty of Room at the Bottom and in it can be found a recipe for putting the entire Encyclopedia Britan-nica on the very small head of a very small pin. Feynman s comments set into motion an entirely new area of study and have lead to what have become known as the fields of nanoscience and nanotechnology. Chemists, physicists, materials scientists, and engineers have come together over the past several decades to produce with high accuracy and precision materials that have dimensions measured in nanometers (nm, 10 meters, about 1/100 000 the width of a human hair). Specifically, materials with one, two, or three dimensions of 100 nm or less (called, respectively, nanofilms, nanotubes, and nanoparticles) qualify as products of nanotechnology. It appears that almost any chemical substance that is a solid under ordinary conditions of temperature... [Pg.267]

Hubenthal, F., 2011. Nobel metal nanoparticles synthesis and optical properties. Compr. Nanosci. Technol. 1, 375—435. [Pg.170]

Experimental evidence for electronic shells is foimd in the plot of cluster abundance vs. nuclearity and in the variation of the ionization energies of clusters (see Fig. 1.12). Electronic shell effects dominate the properties of alkali metal clusters. They are also broadly apphcable to p-block metals. The properties of transition and nobel metal nanoparticles, however, are influenced more by the formation of geometric shells. In fact, a transition from shells of electrons to shells of atoms is seen in the case of A1 [29,53]. It appears that the abundance of available oxidation states and the directional nature of the d- and f-orbitals (and to a limited extent, of the p-orbital) play a role in determining the shell that governs the property of a particular cluster. [Pg.16]

Nobel metal nanoparticles supported on metal oxides are among the most important types of heterogeneous catalysts. In general, the metal oxides were considered the support, which might alter the catalytic properties by changing the shape or electronic structure of the metal. However, there are a few examples of using the and metal oxide together as the active site for catalysis [57]. Recently, Yamada et al. [Pg.352]


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See also in sourсe #XX -- [ Pg.162 , Pg.163 ]




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