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  2. Nanoparticle - Wikipedia

    en.wikipedia.org/wiki/Nanoparticle

    Nanoparticles have different analytical requirements than conventional chemicals, for which chemical composition and concentration are sufficient metrics. Nanoparticles have other physical properties that must be measured for a complete description, such as size, shape, surface properties, crystallinity, and dispersion state. Additionally ...

  3. Nanostructure - Wikipedia

    en.wikipedia.org/wiki/Nanostructure

    Finally, spherical nanoparticles have three dimensions on the nanoscale, i.e., the particle is between 0.1 and 100 nm in each spatial dimension. The terms nanoparticles and ultrafine particles (UFP) are often used synonymously although UFP can reach into the micrometre range.

  4. Characterization of nanoparticles - Wikipedia

    en.wikipedia.org/wiki/Characterization_of...

    Nanoparticles have different analytical requirements than conventional chemicals, for which chemical composition and concentration are sufficient metrics. Nanoparticles have other physical properties that must be measured for a complete description, such as size, shape, surface properties, crystallinity, and dispersion state.

  5. Nanomaterials - Wikipedia

    en.wikipedia.org/wiki/Nanomaterials

    Nonmetallic nanoparticles and nanomaterials: Size-dependent behavior of mechanical properties is still not clear in the case of polymer nanomaterials however, in one research by Lahouij they found that the compressive moduli of polystyrene nanoparticles were found to be less than that of the bulk counterparts.

  6. Silver nanoparticle - Wikipedia

    en.wikipedia.org/wiki/Silver_nanoparticle

    This shape dependence allows a silver nanoparticle to experience optical enhancement at a range of different wavelengths, even by keeping the size relatively constant, just by changing its shape. This aspect can be exploited in synthesis to promote change in shape of nanoparticles through light interaction. [38]

  7. Janus particles - Wikipedia

    en.wikipedia.org/wiki/Janus_particles

    The term "Janus Particle" was coined by author Leonard Wibberley in his 1962 novel The Mouse on the Moon as a science-fictional device for space travel.. The term was first used in a real-world scientific context by C. Casagrande et al. in 1988 [8] to describe spherical glass particles with one of the hemispheres hydrophilic and the other hydrophobic.

  8. Self-assembly of nanoparticles - Wikipedia

    en.wikipedia.org/wiki/Self-assembly_of_nanoparticles

    Different particle shapes / polyhedra create diverse complex packing structures in order to minimize the entropy of the system. By computer simulations, four structure categories are classified for faceted polyhedra nanoparticles according to their long-range order and short-range order, which are liquid crystals, plastic crystals, crystals ...

  9. Nanocluster - Wikipedia

    en.wikipedia.org/wiki/Nanocluster

    Not all the clusters are stable. The stability of nanoclusters depends on the number of atoms in the nanocluster, valence electron counts and encapsulating scaffolds. [22] In the 1990s, Heer and his coworkers used supersonic expansion of an atomic cluster source into a vacuum in the presence of an inert gas and produced atomic cluster beams. [21]

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