Abstract:
An oxygen-scavenging mixture comprising the components (I) a nano-sized oxidizable metal component wherein the average particle size of the metal is 1 to 1000 nm and wherein the metal is unsupported or supported by a carrier material, (II) an electrolyte component, and (III) a non-electrolytic, acidifying component.
Abstract:
An oxygen-scavenging mixture comprising the components (I) a nano-sized oxidizable metal component wherein the average particle size of the metal is 1 to 1000 nm and wherein the metal is unsupported or supported by a carrier material, (II) an electrolyte component, and (III) a non-electrolytic, acidifying component.
Abstract:
The instant invention relates to a process for enhancing plant growth in greenhouses or plant tunnels or over mulches by incorporating one or more yellow pigments or dyes into a greenhouse, mulch film or glazing and exposing the plants through or over such film to solar radiation so that specific and defined ratios of the light transmitted, emitted or reflected between 410 to 450 nm, 380 to 410 nm and 450 to 500 nm are obtained. A further aspect of the invention is the use of one or more yellow pigments or dyes as plant growth enhancing additive in polymeric films for greenhouses, plant tunnels or mulches or a coating for greenhouse glazing so that specific and defined ratios of the light transmitted, emitted or reflected between 410 to 450 nm, 380 to 410 nm and 450 to 500 nm are obtained.
Abstract:
A photovoltaic cell of high efficiency may be obtained using metallic nanoparticles or nanostructures as the main light absorbing element in the photosensitive layer of the cell, which absorb the light through a surface plasmon or polaron mechanism. The cell comprises at least one photosensitive layer containing nanoparticles or nanostructures each between a n-doped and a p-doped charge transport layer, characterized in that the nanoparticles or nanostructures are the main light absorbing element in the photosensitive layer, the nanoparticles or nanostructures have metallic conductivity and absorb near infrared, visible and/or ultraviolet light through a surface plasmon or polaron mechanism, and the nanoparticles or nanostructures have at least one of their dimensions of size between 0.1 and 500 nm. By exploiting the combination of electronic and size parameters, intense optical absorption at any wavelength within the solar spectrum (about 2500 and 300 nm) can be obtained and the whole range of the solar spectrum may be used.
Abstract:
A photographic material for image display including an intimately sorbed contrast agent that provides a contrast layer against which the recorded image can be seen regardless of the nature and colour of the background.
Abstract:
The instant invention relates to encapsulated luminescent pigments, which are encapsulated by a polymeric shell. Further aspects of the invention are polymeric compositions containing these encapsulated luminescent pigments and their use in electronic devices and agricultural films.
Abstract:
The instant invention relates to a process for enhancing plant growth in greenhouses or plant tunnels or over mulches by incorporating one or more yellow pigments or dyes into a greenhouse, mulch film or glazing and exposing the plants through or over such film to solar radiation so that specific and defined ratios of the light transmitted, emitted or reflected between 410 to 450 nm, 380 to 410 nm and 450 to 500 nm are obtained. A further aspect of the invention is the use of one or more yellow pigments or dyes as plant growth enhancing additive in polymeric films for greenhouses, plant tunnels or mulches or a coating for greenhouse glazing so that specific and defined ratios of the light transmitted, emitted or reflected between 410 to 450 nm, 380 to 410 nm and 450 to 500 nm are obtained.
Abstract:
The instant invention relates to a process for enhancing plant growth in greenhouses or plant tunnels or over mulches by incorporating one or more yellow pigments or dyes into a greenhouse, mulch film or glazing and exposing the plants through or over such film to solar radiation so that specific and defined ratios of the light transmitted, emitted or reflected between 410 to 450 nm, 380 to 410 nm and 450 to 500 nm are obtained. A further aspect of the invention is the use of one or more yellow pigments or dyes as plant growth enhancing additive in polymeric films for greenhouses, plant tunnels or mulches or a coating for greenhouse glazing so that specific and defined ratios of the light transmitted, emitted or reflected between 410 to 450 nm, 380 to 410 nm and 450 to 500 nm are obtained.
Abstract:
The present invention relates to the use of unique markers in the identification and tracking of objects. The present invention provides large numbers of unique markings for application to items as part of a marking system. The present invention provides a new approach to laboratory analysis and a means of rapid in-field identification of goods using a hand-held scanner. It provides data that can be used as a means of product tracking, identification of counterfeit product and to prove ownership of stolen goods.
Abstract:
A medium is provided in which nano-crystalline semiconductors or quantum dots are stable for extended periods when subjected to exterior lighting. The colour emission of the resultant quantum dots provides a fingerprint which is still effective after one year of exposure to exterior conditions. Such encapsulation protects the quantum dots in exterior conditions, so that they may be used as pigments or coding systems based on their optical emission.