http://www.cnr.it/ontology/cnr/individuo/prodotto/ID140308
Nanosystems (Voce (in dizionario o enciclopedia))
- Type
- Label
- Nanosystems (Voce (in dizionario o enciclopedia)) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Alternative label
Psaro, R.; Guidotti, M.; Sgobba, M. (2008)
Nanosystems
EOLSS Publishers, Oxford (Regno Unito) in Inorganic and Bio-inorganic Chemistry, 2008
(literal)
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- Psaro, R.; Guidotti, M.; Sgobba, M. (literal)
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- [http://www.eolss.net], ISBN: 978-1-84826-665-0 (literal)
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- Inorganic and Bio-inorganic Chemistry (literal)
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- part of Encyclopedia of Life Support Systems (EOLSS)\" (literal)
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- CNR, ISTM, via Venezian 21, I-20133 Milan, Italy (literal)
- Titolo
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- Inorganic and Bio-inorganic Chemistry, Vol. II (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
- 978-1-84826-665-0 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autoriVolume
- Abstract
- Inorganic nanosystems are defined as nanosized chemical objects whose composition is
merely inorganic and which exhibit peculiar features due to quantum-size and
geometrical effects. Two are the general synthetic pathways by which nano-objects are
obtained: the so-called 'top-down' and 'bottom-up' approaches. Mainly in the latter
method, chemistry plays a unique role in assembling and building up nanometric units
from smaller ones. The nanosystems can be defined and classified according to the
hierarchical order of dimensionality. Zero-dimensional systems include pseudospherical
objects such as nanoclusters and nanoparticles, supported onto inorganic bulk
supports as well as in colloidal solutions, or ceramic nanopowders. One-dimensional
systems take into account carbon-based, metal-based or even oxide-based systems in
which the extension over one dimension is predominant over the other two, such as
solid nanofibers, nanowires or nanorods, as well as hollow nanotubes. As twodimensional
nanosystems, the crystalline flat nanometric materials, such as nanodiscs or
nanoprisms, and the amorphous nanofilms and nanomembranes are considered. Then,
three-dimensional nanosystems consist of both crystalline and amorphous
nanostructures, such as nanocrystals and a very large variety of ordered nanoarranged
porous materials. Three-dimensional arrangements can be also created from simpler
components, as nanoparticles or nanorods, and superstructures or superlattices with
improved features are thus obtained.
The description, the synthesis, the properties and the main applications in technology
and industry of the chemical systems at nanoscale most commonly found in inorganic
chemistry are here summarized and reviewed. Finally, few highlights are given on
inorganic-organic hybrid nanosystems and on systems with applications in
biochemistry, as these subjects are on the borderline with organic chemistry and
biology. (literal)
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