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Nanotubes |
Research items involving the chemistry of Single Wall Carbon Nanotubes |
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organoboron p-conjugated structures for molecular photonics and electronics |
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| Nano-Hybrids for Photonic Devices | ||
| Highly Efficient Light Interactions with Organized molecular Systems | ||
| D.NanoMem | Nanocomposite and Nanostructured Polymeric Membranes for Gas and Vapour Separations | |
| Lab205 research group: Organic Synthesis and Materials |
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E' disponibile un contratto di ricerca su "Sintesi di derivati di nanotubi
di carbonio" nell'ambito di una collaborazione con Veneto Nanotech per lo
studio delle interazioni fra nanomateriali e sistemi biologici. E' richiesta la
laurea in chimica, chimica industriale, scienza dei materiali o CTF. |
Solubilization of Carbon Nanotubes
Since the discovery of carbon nanotubes in 1991,
many studies have highlighted their peculiar
behaviors. Single-walled carbon nanotubes (SWNT)
have attracted the attention of chemists and
physicists because of their interesting
electrical, optical, magnetic and mechanical
properties and potential applications in fields
such as molecular electronics, composite polymers,
nanowires, optical limiters, gas storage
devices.
Most studies consist
of physical investigations of solid state
properties, while the chemistry of nanotubes is a
brand new field. The two main obstacles for the
chemical manipulation of nanotubes are their
insolubility, and their extremely low
reactivity.
A well defined
procedure for obtaining functionalized nanotubes
has been reported, based on the production of
small pipes called sh-SWNT (i.e. shortened SWNT)
100-200 nm long, from original SWNT which are
more than 1mm long. These sh-SWNT bear carboxylic
functions at the edges. The attachment of
different alkyl and aryl chains to carboxylic end
groups led to derivatives that are soluble in some
organic solvents.
Due to its reduced tendency to aggregate, sh-SWNT-PEG can be dispersed over solid substrates to obtain relatively homogeneous films. The study of solid state physico-chemical properties on these materials will possibly disclose opportunities for the realization of innovative devices based on the well known peculiarities of SWNT.
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A nano-toxicity project for the evaluation of carbon nanotubes impact on health is currently running in the frame of ECSIN initiative by Veneto Nanotech.
KEY PUBLICATIONS:
F. Cordella, M. De Nardi, E. Menna, C. Hébert, M.A. Loi; "Tuning the
photophysical properties of soluble single-wall carbon nanotube derivatives by
co-functionalization with organic molecules", Carbon 2009,
47, 1264-1269
A. Gambetta, C. Manzoni, E. Menna, M. Meneghetti, G. Cerullo, G. Lanzani, S.
Tretiak, A. Piryatinski, A. Saxena, R. L. Martin, A. R. Bishop; "Real-time
observation of nonlinear coherent phonon dynamics in single-walled carbon
nanotubes", Nature Phys.
2006,
2,
515-520
M. D'Este, M. De Nardi, E. Menna; "A co-functionalization approach to
soluble and functional Single-Walled Carbon Nanotubes", Eur. J. Org. Chem.
2006, 2513-2516.
D. M. Guldi, E. Menna, M. Maggini, M. Marcaccio,
D. Paolucci, F. Paolucci, S. Campidelli, M. Prato, G. M. A. Rahman, S. Schergna;
"
Supramolecular hybrids of [60]Fullerene and Single Wall Carbon
Nanotubes", Chem.-Eur.
J. 2006, 12,
3975-3983.
E. Menna, F. Della Negra, M. Prato, N. Tagmatarchis, A.
Ciogli, F. Gasparrini, D. Misiti, C. Villani; "Carbon nanotubes on HPLC
silica microspheres", Carbon 2006,
44, 1609-1613.
C. Gadermaier, E. Menna, M. Meneghetti, W. J.
Kennedy, Z. V. Vardeny, G. Lanzani; "Exciton relaxation in single wall carbon
nanotubes", Nano Lett. 2006,
6, 301-305.