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Technology TransferPatents ■ New Materials

New Materials

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The invention relates to a material formed by carbon nanotubes and polymerized ionic liquid and the method for producing such material. This material is used for the production of the active part of a soft actuator and it has improved conductibility and mechanical characteristics compared to the existing ones.


The invention relates to a method to produce chemically enhanced polyaniline / reduced graphene oxide nanocompisites starting from a previous patented material is developed. The produced nanocomposite is readily dispersible in some organic solvents and it can be used as ink. This ink can be easily processed by the inkjet direct printing technique and produce devices on flexible substrates. The devices has resonance frequency that can be tuned simply by the number of printing passes thanks to electronic resonance with extremely long transfer rates between reduced graphene oxide and polyaniline. This resonance introduces a discontinuity in the capacitance producing asymptotic divergences to infinity having sign dependent on the frequency sweep direction. Hence devices may be geometrically tuned to operate with desired capacitance (either positive or negative) at the desired frequency


The present invention relates to a method for producing a totally endogenous bioengineered tissue including a first layer of connective tissue and a second layer of epithelial tissue, to a tissue equivalent obtained thereby and to a method for determining the effect of a chemical substance or an agent on skin employing the tissue equivalent.


Packaging material comprising cellulosic fibers, particularly recycling material, having barrier properties against the migration of mineral oils and / or their volatile components possibly included in the material, characterized in that it comprises at least a first surface coating, in contact with said acrylic polymer fibers and at least a second coating, applied to said first coating, of cyclic olefin copolymer.


The present invention relates to methods for the preparation of one-dimensional photonic crystals using pulsed laser deposition technique or using assisted supersonic jet plasma deposition technique.


The invention relates to a method for the production of biodegradable plastic material, obtained from vegetable waste materials, comprising the operations of: · Dissolution with tri-fluoroacetic acid of a powder at least partially dehydrated of said vegetable waste material, in order to bring in solution a cellulosic fraction of said material; · Removal of the tri-fluoroacetic acid solvent . At the aforementioned solution of vegetable waste in trifluoroacetic acid could be added with additive like microcrystalline solutions of cellulose, biodegradable or biocompatible polymers or waste of fibers in tri- fluoroacetic acid. Films, leaves, shaped articles or fibers could be obtained with mold casting, extrusion or electro-spinning


The invention relates to a process for the production of a hydrophobic composite bioelastomer comprising a cross-linked bioleastomer matrix in which an organic phase is dispersed, comprising moisture catalysed cross-linking of a hydroxyterminated polysiloxane with a silane coupling agent comprising an acetoxy silane, thereby to produce a cross-linked polysiloxane with acetic acid release, characterised in that the moisture catalysed cross-linking reaction is carried out in the presence of starch, thereby to cause at least partial in situ acetylation, by the released acetic acid, of said starch which is embedded in the cross-linked bioelastomer matrix.


The invention relates to a method for the preparation of polyaniline/reduced graphene oxide composites comprising the steps of: · dispersing the graphene oxide in an acid aqueous solution containing an anionic emulsifying agent to obtain a graphene oxide dispersion; · dissolving one or more oligomers of the aniline, optionally substituted, in an organic solvent to obtain an oligomer solution; · mixing said oligomer solution with said dispersion of graphene oxide to obtain a polyaniline/reduced graphene oxide composite.


The present invention relates to an instantaneous adhesive composition which is satisfactorily made thixotropic or gelled and has a rapid setting time and an excellent adhesive strength, said composition being obtained by adding to an α-cyanoacrilate a silica gel treated with a silyl isocyanate.


Cladding tube for nuclear fuel usable in a reactor cooled with liquid metal or molten salt. Said tube comprises a tubular body of metallic material and a protective coating applied on an outer surface of the tubular body, intended in use to come into contact with the refrigerant. The coating includes at least one layer of ceramic material, comprising a matrix composed of the ceramic material in the amorphous phase, within which are dispersed nano-domains composed by the ceramic material in the crystalline phase.


Heat-sensitive system comprising at least one nanoparticle able to convert an electromagnetic radiation into thermal energy when said nanoparticle is exposed to an alternating magnetic field, said nanoparticle being bound covalently with at least one thermolabile molecule, said thermolabile molecule being covalently bound with at least one active molecule selected from a fluorophore molecule and a drug, characterised in that thermolabile molecule comprises an azo -N=N- functional group.


A multilayer microparticle comprising: • at least one first layer comprising a first fluorophore, • at least one second layer in contact with the first layer, • at least one third layer in contact with the second layer,and comprising a second fluorophore, where: • the first fluorophore and the second fluorophore are different, • the first layer and the third layer are not in contact one with the other.


Process for the production of a polymeric foam with use of hydrogel pearls as porosity generating template, comprising the steps of: • providing a matrix of polymer or prepolymer in viscous state including, as a dispersed phase, hydrogel pearls, where said pearls are dispersed in said matrix so as to generate intercommunicating cells, • causing the solidification of the matrix of polymer or prepolymer to obtain said polymeric foam including said hydrogel pearls, characterised in that it comprises the operation of subjecting the thus obtained foam to conditions which cause the dehydration of said hydrogel pearls so as to obtain a reduction of volume of said pearls, • removing the dehydrated pearls by immersion in water of the polymeric foam or by exposure of the foam to a flow of pressurised gas.


The present invention relates to anodic porous alumina (APA) in the form of microparticles, characterized in that it contains interconnected through nanopores, and to its use in the preparation of a new composite material, which is useful for example in the field of conservative dentistry. The invention further relates to a process for preparing the nanoporous alumina of the invention in microparticles.Thanks to the mechanical interlace that is established between the microparticles of nanoporous alumina and the polymer matrix, the composite material of the invention does not require the use of any coupling agent, further ensuring excellent properties in terms of resistance, elasticity, biocompatibility and stability over time. In fact, the particular microparticulate form of the nanoporous alumina and the presence of interconnected through holes in each microparticle makes it possible to achieve an almost complete penetration of the polymer matrix into the alumina nanopores. In this manner the two components of the composite material are physically interconnected without there being a need to use any type of chemical coupling agent.


Lithium Iron Phosphate nanocrystals are synthesized by a colloidal method; this synthesis permits to control very efficiently the shape and the size of the crystals. The size of the nanoparticles is below 100 nm. These nanocrystals can be used as a cathode in Li-ion battery. The process of lithiation and de-lithiation could be easier respect to the past due to the small size of the crystals that lead to high surface/volume ratio. LiFePO4 is not a conductive material and it needs a carbon coating. Working with LiFePO4 NCs this step is no more necessary because the electrical conductivity is increased in the nanosized material.


Povidone Iodine (PVPI) is a well known broad spectrum anticeptic for wound treatment and irrigation. PVPI, however, is a very hydrophilic substrance having poor resistance against water. Wound treatments with PVPI are, therefore, short lived. We have developed a simple and inexpensive method to directly incorporate PVPI in alginic (sodium & calcium) polymer matrices to enable its slow and controlled release into infected areas. The process also prolongs antiseptic effects of PVPI considerably. Aqueous PVPI solutions are blended with sodium alginate solutions at any proportion from which films can be cast. Droplets or continuous liquid streams of the blend solutions can be cross-linked in calcium salt solutions to form PVPI encapsulated beads and fibers.


The CNST center in Milan, has developed a fluorous protein showing excellent film-forming properties at the water/fluorous interphase. This protein combines the outstanding surface activity of fluorosurfactants with the unique film-forming properties of hydrophobins, which have been reported to be the only proteins able to form elastic films, and therefore specially effective in stabilizing both foams and emulsions.


The smart Materials workgroup has developed a simple and cost effective waterproofing method, impregnating bionanocomposites into nonwovens such as paper. The proposed technology uses a simple method to create polymer nanoparticle/cyanoacrylate monomer dispersions in solution. Prepared dispersions can be impregnated into wide variety nonwovens using a number of different techniques such as roll, dip or spray coating. The impregnated composites can be left in an ambient environment to allow the cyanoacrylate monomers to cross link in situ within the fibrillar matrix. It is also possible to use wax and/or cyclic olefin copolymer nanoparticles to render the nanocomposites completely biodegradable. The paper obtained with this process is of superior quality and, for example, can be fed into laser jet printers as ordinary paper with no difference whatsoever, in fact the bionancomposite which is impregnated into the paper matrix is unnoticeable. However, the treated paper immersed in water, remains intact preserving the printed information. The picture underlines the borderline between treated and untreated paper, when immersed in water.


Nanoparticles assembly in polymeric nanocomposites is probably the last frontier to be removed to really enhance the properties of new hybrid materials. Here we present a technique based on UV pulsed laser irradiation of acrylate polymers-based solutions, that generates in a single step the separation of the initial clusters of colloidal TiO2 nanorods into clearly separated units, exploiting the intrinsic photosensitivity of the semiconductor nanoparticles. From the irradiated solutions, optically clear nanocomposite films are obtained that exhibit increased UV absorption, refractive index, antireflection properties, as well as tunable wettability; properties not possible otherwise that establish that the photocatalytic property of TiO2 nanocrystals together with the irradiation process solve the crucial dispersion enigma of their nanocomposites. The obtained good dispersion shows, as expected, that the larger active surface area of nanocrystals reacting with the incoming light increases the optical properties of the nanocomposites as never seen before. In summary, this is a simple but powerful tool to control the mixing between polymers and semiconductor nanocrystals, using their photocatalytic ability, without chemicals treatment.


This invention describes a method to produce alginate-based micro- and nanostructures, conferring them controlled stability over time in aqueous media and adjustable biodegradability. To this end, trifluoroacetic acid (TFA) and its derivatives are used.


The invention relates to nanoparticles which are composed by a hollow silica nanostructure in which negative charged gold seeds are embedded in its central cavity by positive-charged polymer. In this system, every component is synergistically associated to the other, resulting in a complex object able to reach the target in the organism, to produce the theranostics action, and finally to be biodegraded and cleared out. The nanoparticles can be used in in vivo analysis of the systems with theranostics features (photoacoustic and x-ray enhancement).


Last Updated on Monday, 25 January 2016 11:08


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