Abstract: A contact lens, including (a) at least one polymeric matrix and (b) absorbing semi-conductive nanoparticles which are dispersed in the polymeric matrix, wherein the absorbance through a layer of the contact lens is higher than 0.5 for each light wavelength ranging from 350 nm to ?cut, ?cut being in the visible range, preferably in the range from 400 nm to 480 nm, the layer having a thickness ranging from 50 ?m to 250 ?m.

Abstract: Composite particles including nanoparticles dispersed in a matrix and their use in biologic assay. The nanoparticles selectively absorb or selectively emit light and have a size in at least one of its dimensions shorter than 20 nm. The weight fraction of the nanoparticles in the composite particles is greater than 0.5% and less than 50%, and the matrix of the composite particles is inorganic and includes less than 90% by weight of silica. Also, the composite particles are functionalized with a specific-binding component and have a mean size greater than 50 nm and less than 1000 nm.

Abstract: A light filtering glass container including a glass container coated with a light filtering coating obtained by curing a polymerizable composition including semi-conductive nanoparticles. The absorbance through a 5-micrometer thick light filtering coating is greater than 0.5 for each light wavelength ranging from 350 nm to ?cut, ?cut being in the range from 420 nm to 480 nm, and the difference of lightness between the uncoated glass container and the glass container with the light filtering coating is lower than 5.

Abstract: A polymerizable liquid composition including semi-conductive nanoparticles for the manufacture of ophthalmic lenses. Specifically, polymerizable composition has at least one monomer or oligomer; at least one catalyst for initiating the polymerization of the monomer or oligomer; and semi-conductive nanoparticles, which are dispersed in the monomer or oligomer. The absorbance through a 2-millimeter-thick layer of the polymerizable composition is higher than 0.5 for each light wavelength ranging from 350 to ?cut, ?cut being in the visible range, preferably in the range from 400 nm to 480 nm.

Abstract: A display that includes an image producing system and a light filtering layer in the blue range, the light filtering layer having a limited impact on the gamut of the display. The image producing system has a gamut G0 defined in a color space The light filtering layer includes semi-conductive nanoparticles, and the absorbance through the light filtering layer is greater than 0.25 for each light wavelength ranging from 350 nm to ?cut, ?cut being in the range from 420 nm to 450 nm. The gamut G1 of the image producing system with the filtering layer has an area greater than 90% of the area of gamut G0 in the color space.

Abstract: An electronic device includes a substrate and at least two electrodes spaced by a nanogap, wherein the at least two electrodes are bridged by at least one nanoparticle and wherein the at least one nanoparticle has an overlap area with the at least two electrodes higher than 2% of the area of the at least one nanoparticle. A method of manufacturing of the electronic device and the use of the electronic device in photodetector, transistor, phototransistor, optical modulator, electrical diode, photovoltaic cell or electroluminescent component are also described.

Abstract: A colloidal material including semiconductor nanocrystals of formula AnXm, wherein A is selected from group Ib, IIa, IIb, IIIa, IIIb, IVa, IVb, Va, Vb, VIb, VIIb, VIII, IIb, III, IV or mixtures thereof, X is selected from group Va, VIa, VIIa or mixtures thereof, and n and m are independently a decimal number from 0 to 5. The semiconductor nanocrystals have a quasi 2D structure, wherein the smallest dimension is smaller than the other two dimensions by a factor of at least 1.5 and the faces substantially normal to the smallest dimension consist either of A or X. Also, a semiconducting thin film, an optoelectronic device, a laser, a photovoltaic cell, a diode, a light emitting diode or a display including the colloidal material.

Abstract: An electronic device includes a substrate and at least two electrodes spaced by a nanogap, wherein the at least two electrodes are bridged by at least one nanoparticle and wherein the at least one nanoparticle has an overlap area with the at least two electrodes higher than 2% of the area of the at least one nanoparticle. A method of manufacturing the electronic device and the use of the electronic device in photodetector, transistor, phototransistor, optical modulator, electrical diode, photovoltaic cell or electroluminescent component are also described.

Abstract: An electronic device includes a substrate and at least two electrodes spaced by a nanogap, wherein the at least two electrodes are bridged by at least one nanoparticle and wherein the at least one nanoparticle has an overlap area with the at least two electrodes higher than 2% of the area of the at least one nanoparticle. A method of manufacturing of the electronic device and the use of the electronic device in photodetector, transistor, phototransistor, optical modulator, electrical diode, photovoltaic cell or electroluminescent component are also described.

Abstract: A colloidal material and a process for manufacturing it and uses of the colloidal material for manufacturing optic devices. The colloidal material is of formula AnXm, wherein A is an element selected from groups II, III or IV of the periodic table; X is a metal selected from groups V or VI; and in the selection of the pair (A, X), the groups of the periodic table of A and X, respectively, are selected from the following combinations: (group II, group VI), (group III, group V) or (group IV, group VI); and n and m are such that AnXm is a neutral compound. The colloidal compound may be CdS, InP, or PbS. The process includes a step of solution phase decomposition of a mixture of X and a carboxylate of formula A(R—COO)p in the presence of a non- or weakly-coordinating solvent, and injecting an acetate salt or acetic acid in the mixture; wherein p is an integer between 1 and 2; R is a linear or branched C1-30alkyl group.

Abstract: A colloidal material including semiconductor nanocrystals of formula AnXm, wherein A is selected from group Ib, IIa, IIb, IIIa, IIIb, IVa, IVb, Va, Vb, VIb, VIIb, VIII, IIb, III, IV or mixtures thereof, X is selected from group Va, VIa, VIIa or mixtures thereof, and n and m are independently a decimal number from 0 to 5. The semiconductor nanocrystals have a quasi 2D structure, wherein the smallest dimension is smaller than the other two dimensions by a factor of at least 1.5 and the faces substantially normal to the smallest dimension consist either of A or X. Also, a semiconducting thin film, an optoelectronic device, a laser, a photovoltaic cell, a diode, a light emitting diode or a display including the colloidal material.

Abstract: The subject of the invention is a method of synthesizing a compound MxPy where M is an element belonging to one of columns II to XV of the Periodic Table of the Elements or to the family of lanthanides or to the family of actinides, characterized in that it includes the reaction of x moles of compound comprising the element M in its oxidation state 0 with y/4n moles of compound (P4)n. The method of the invention may be carried out at a temperature much lower than those necessary in the methods of the prior art. It also allows low-temperature formation of nanoparticles and stoichiometric reaction control. The applications of this method are numerous: magnetic ferro-magnets for MnP and FeP; hydrodesulfurization catalysts for Ni2P; luminescent nanoparticles for biological applications; microelectronics and optoelectronics for InP; and electronics for GaP. The latter two phosphides are also used in the photovoltaic energy field.

Abstract: The invention relates to a structured illumination system (8) for the three-dimensional microscopy of a sample (14), that comprises: beam generation means (9, 10) adapted for generating coherent light beams (IN, I?N, I0); a lens (12) having a rear focal plane (PFA), and arranged so that the sample (14) can be placed in the focalisation plane (PMP) of the lens; focalisation means (19) arranged for focusing the light beams in the rear focal plane (PFA) so that the beams interfere in a collimated manner in the focalisation plane (PMP) of the lens (12); characterised in that the beam generation means (9, 10) includes a light space modulator (10) programmed for diffracting a light signal (22) in order to generate at least two different diffracted beams ((IN, I0), (I?N, I0)) that are not symmetrical relative to the lens optical axis, wherein the light space modulator includes a calculator adapted for applying a constant phase term to each of said at least two coherent beams.

Abstract: The present invention relates to a process for manufacturing a colloidal material, to colloidal materials obtainable by this process and to uses of said colloidal material for the manufacture of optic devices. The colloidal material obtainable by the process of the present invention is of formula AnXm, wherein A is an element selected from groups II, III or IV of the periodic table, wherein X is a metal selected from groups V or VI of the periodic table, and wherein, in the selection of the pair (A, X), the groups of the periodic table of A and X, respectively, are selected from the following combinations: (group II, group VI), (group III, group V) or (group IV, group VI); and wherein n and m are such that AnXm is a neutral compound. For example, the colloidal compound obtainable by the process of the present invention may be CdS, In P, or PbS. Other examples are provided below.

Abstract: The invention provides a water soluble complex comprising an inner core of a metal or semi-conductor nanoparticle. The nanoparticle is coated with a hydrophobic ligand, which is encapsulated in a micelle. In an aqueous medium, the micelle comprises a hydrophilic shell and a hydrophobic core, the hydrophilic shell comprising a plurality of hydrophilic moieties, the hydrophobic core comprising a plurality of hydrophobic moieties, each hydrophobic moiety comprising at least one chain, each chain comprising a minimum of 8 atoms; wherein the total number of atoms in all chains for each moiety comprises at least 24 atoms. The micelle has a minimum average diameter of approximately 5 nm and a maximum average diameter of approximately 45 nm.

Abstract: The invention relates to a structured illumination system (8) for the three-dimensional microscopy of a sample (14), that comprises: beam generation means (9, 10) adapted for generating coherent light beams (IN, I?N, I0); a lens (12) having a rear focal plane (PFA), and arranged so that the sample (14) can be placed in the focalisation plane (PMP) of the lens; focalisation means (19) arranged for focusing the light beams in the rear focal plane (PFA) so that the beams interfere in a collimated manner in the focalisation plane (PMP) of the lens (12); characterised in that the beam generation means (9, 10) includes a light space modulator (10) programmed for diffracting a light signal (22) in order to generate at least two different diffracted beams ((IN, I0), (I?N, I0)) that are not symmetrical relative to the lens optical axis, wherein the light space modulator includes a calculator adapted for applying a constant phase term to each of said at least two coherent beams.

Abstract: The invention provides a water soluble complex comprising an inner core of a metal or semi-conductor nanoparticle. The nanoparticle is coated with a hydrophobic ligand, which is encapsulated in a micelle. In an aqueous medium, the micelle comprises a hydrophilic shell and a hydrophobic core, the hydrophilic shell comprising a plurality of hydrophilic moieties, the hydrophobic core comprising a plurality of hydrophobic moieties, each hydrophobic moiety comprising at least one chain, each chain comprising a minimum of 8 atoms; wherein the total number of atoms in all chains for each moiety comprises at least 24 atoms. The micelle has a minimum average diameter of approximately 5 nm and a maximum average diameter of approximately 45 nm.

Abstract: The subject of the invention is a method of synthesizing a compound MxPy where M is an element belonging to one of columns II to XV of the Periodic Table of the Elements or to the family of lanthanides or to the family of actinides, characterized in that it includes the reaction of x moles of compound comprising the element M in its oxidation state 0 with y/4n moles of compound (P4)n. The method of the invention may be carried out at a temperature much lower than those necessary in the methods of the prior art. It also allows low-temperature formation of nanoparticles and stoichiometric reaction control. The applications of this method are numerous: magnetic ferro-magnets magnets for MnP and FeP; hydrodesulfurization catalysts for Ni2P; luminescent nanoparticles for biological applications; microelectronics and optoelectronics for InP; and electronics for GaP. The latter two phosphides are also used in the photovoltaic energy field.

Abstract: The invention provides a water soluble complex comprising an inner core of a metal or semi-conductor nanoparticle. The nanoparticle is coated with a hydrophobic ligand, which is encapsulated in a micelle. In an aqueous medium, the micelle comprises a hydrophilic shell and a hydrophobic core, the hydrophilic shell comprising a plurality of hydrophilic moieties, the hydrophobic core comprising a plurality of hydrophobic moieties, each hydrophobic moiety comprising at least one chain, each chain comprising a minimum of 8 atoms; wherein the total number of atoms in all chains for each moiety comprises at least 24 atoms. The micelle has a minimum average diameter of approximately 5 nm and a maximum average diameter of approximately 45 nm.

Abstract: The invention concerns a make-up composition comprising as pigment cosmetically acceptable fluorescent semi-conductive nanoparticles in a cosmetic support.