Patent application number | Description | Published |
20120033278 | Optical Logic Gate - Optical logic gate having a second-harmonic generator element that receives a first and a second optical input signal respectively having a first and a second angular frequency and respectively having a first and a second polarization, and which provides a second-harmonic optical signal having a third angular frequency and a third polarization. The third angular frequency is equal to the sum of the first and the second angular frequency. The third polarization is a function of the first and the second polarization. The second-harmonic generator element includes a second-harmonic generator layer in a material having a non-null second-order optical tensor. | 02-09-2012 |
20130012650 | TECHNIQUE FOR STABILIZING SOLUTIONS OF TITANIUM DIOXIDE NANOPARTICLES IN ACRYLATE POLYMERS BY MEANS OF SHORT-PULSED UV LASER IRRADIATION - A method for preparing a colloid solution of titanium dioxide nanoparticles in a solution of acrylic resin in organic solvent includes mixing titanium dioxide nanoparticles with a solution of acrylic resin in organic solvent, so as to obtain the colloid solution. The colloid solution is subjected to a stabilization treatment suitable for preventing or reducing nanoparticle aggregation, the treatment includes irradiating the colloid solution with pulsed coherent light having a wavelength substantially comprised in the ultraviolet absorption band of the titanium dioxide nanoparticles. | 01-10-2013 |
20130032767 | OCTAPOD SHAPED NANOCRYSTALS AND USE THEREOF - This invention relates to the controlled growth of uniform octapod-shaped colloidal nanocrystals and use thereof. These octapod-shaped nanocrystals can be applied in many fields of technology. This represents the first approach reported so far for the predictable and controlled fabrication of octapod-shaped nanocrystals. The synthesis approach is applicable to a broad range of materials, such as group II-VI semiconductor nanocrystals but is not limited to these materials. Using several cation exchange and oxidation procedures, we also demonstrate in this application that extremely uniform octapod-shaped nanocrystals of other materials can be synthesized, including various semiconductors, metals and insulators. | 02-07-2013 |
20140170383 | ORDERED SUPERSTRUCTURES OF OCTAPOD-SHAPED NANOCRYSTALS, THEIR PROCESS OF FABRICATION AND USE THEREOF - This invention relates to the controlled realization of ordered superstructures of octapod-shaped colloidal nanocrystals, formed either in the liquid phase or on a solid substrate. These structures can be applied in many fields of technology. | 06-19-2014 |
Patent application number | Description | Published |
20140035708 | MAGNETIC ACTUATORS HAVING A NANOCOMPOSITE MEMBRANE - Magnetic actuators are provided having a substrate, a membrane layer directly or indirectly applied on a surface of the substrate, in which the membrane layer consists of a matrix of elastic polymer material, in which nanoparticles of magnetic material, capable of undergoing a dynamic effect under the action of a magnetic field, are dispersed, and at least one magnetic field generator suitable to generate a magnetic field acting on the membrane layer, in which the magnetic field generator is directly or indirectly arranged on the surface of the substrate, or within the substrate. | 02-06-2014 |
20150064103 | METHODS OF MAKING FERRITE NANOCRYSTALS - Methods of making iron-based ferrite nanocrystals are provided. In such methods the ferrite may include iron oxides and iron/cobalt or iron/manganese mixed salts. The method may include thermal decomposition of one or more precursors of the ferrite, consisting of an organic salt of the metal or metals constituting the ferrite of interest, comprising the operation of heating a solution comprising said precursor(s) in the presence of a surfactant and of a non-aqueous organic solvent comprising an ether, at temperature sufficient to cause thermal decomposition of said precursor, wherein the solvent may further comprise a saturated or unsaturated, linear or branched aliphatic hydrocarbon, liquid at temperatures above 45° C. and having a boiling point above the boiling point of the ethereal solvent. | 03-05-2015 |
Patent application number | Description | Published |
20090014070 | Electroactive device based on organic compounds, comprising a float-glass substrate - An electroactive photonic device (D) comprises a substrate ( | 01-15-2009 |
20090305291 | METHOD AND A MICRODEVICE FOR THE IDENTIFICATION AND/OR QUANTIFICATION OF AN ANALYTE IN A BIOLOGICAL SAMPLE - A method and device, based on a film of a luminescent substance, such as colloidal semiconductor nanocrystals dispersed in a polymer matrix, for conducting quantitative and real-time analyses of PCR processes or of biomolecular interactions in genomics and/or proteomics. The optical detection system is based on FRET processes between the luminescent substance (which acts as the donor in the FRET process) and a suitable fluorophore (which acts as the acceptor species) with which the DNA or other biomolecule is marked. The device is essentially composed of a reaction microchamber with a wall formed by a thin film made of polymer material, in which the nanocrystals are uniformly dispersed, or made of a photoluminescent or electroluminescent polymer. Molecular probes are chemically immobilized on the surface of the polymer film for the specific recognition of the analyte which is to be determined in real time. The film of nanocrystals is excited by radiation at low wavelength (for example, UV/blue), and the radiation in the spectral emission window characteristic of the fluorescent marker of the biomolecule is detected. The specific photophysical characteristics of FRET processes make it possible to monitor in a selective way, in real time and in quantitative mode, the biomolecular interactions, which take place in the close proximity of the surface of the film (typically at distances of <10 nanometres), thus almost completely reducing possible interference caused by background signals and by the free biomolecules in solution (which have not interacted with the corresponding recognition sites). The characteristics of the device also enable simultaneous analyses to be conducted in parallel on different biomolecules (multiplexing). | 12-10-2009 |
20100028898 | METHOD OF IDENTIFYING A TARGET ANALYTE USING PHOTONIC CRYSTAL RESONATORS, AND RELATED DEVICE - A method of identifying target analytes in a sample, particularly a biological sample, comprising the steps of putting a plurality of target analytes, bound to a common luminescent marker, in contact with a plurality of molecular probes immobilized on a support, each of said molecular probes being capable of complementary binding to a respective target analyte, if said target analyte is present in the sample, providing to said support an excitation radiation and detecting an emission radiation coming from said support as a result of at least one complementary binding event, characterized by the fact that:
| 02-04-2010 |
20100316561 | PROCESS FOR THE PREPARATION OF TITANIUM DIOXIDE WITH NANOMETRIC DIMENSIONS AND CONTROLLED SHAPE - The present invention relates to an industrial applicable process for the preparation of materials with nanometric dimensions and controlled shape, based on titanium dioxide. The invention also relates to a process for the preparation of titanium dioxide nanorods with anatase phase composition, which are highly suitable for applications involving photovoltaic cells, particularly Dye Sensitized Solar Cells (DSSC), photoelectrolysis cells and tandem cells for the conversion of solar energy and the production of hydrogen. | 12-16-2010 |