Abstract:
A continuous reaction system (CRS) allows a method to prepare quantum dots (QDs) in a continuous manner with high precision. The CRS pumps a plurality of reagent fluids into one or more mixing sites to form a reaction fluid that is carried through a heating chamber at elevated pressures to carry out hydrothermal growth of the QDs. The pumps and heating chamber are controlled with a high precision by employing a detector downstream of the heating chamber to provide a signal that is dependent on the composition and size of the QDs. The signal is provided to a signal processor that provides a signal that control the flow rates and temperature parameters in the system. The QDs produced in this manner are consistent in size and composition and can be of a single semiconductor composition or can be core-shell QDs with a shell semiconductor formed on a core semiconductor.
Abstract:
A method of irradiating a target region containing at least one fullerene comprising molecule promotes the heating or combustion of the target region. The heating method can be employed in a variety of applications including: selective targeting and destruction of cancer cells, detonation of explosives, ignition of a combustible mixture, photolithographic processes, and writing of optical storage media.
Abstract:
Nanoengineered particulate coatings (NPCs) comprise a multiplicity of particulate hosts that are infused with a nanophase comprising a surfactant and at least one guest. The particulate hosts can be clay particles, the surfactant can be a cationic surfactant, and the guest can be an insect repellant. For example, montmorillonite particles infused with hexadecyl trimethyl ammonium bromide and garlic oil form NPCs that may be used to form an emulsion or suspension for spraying on citrus trees to repel Asian Citrus Psyllid.
Abstract:
An electromagnetic radiation activated device comprises a property changing material and at least one functionalized fullerene that upon irradiation of the functionalized fullerenes with electromagnetic radiation of one or more frequencies a thermally activated chemical or physical transformation occurs in the property changing material. The thermal activated transformation of the property changing material is triggered by the heating or combustion of the functionalized fullerenes upon their irradiation. The device can include a chemical agent that is embedded in the property changing material and is released when the material is heated by the functionalized fullerenes upon irradiation.
Abstract:
Electromagnetic irradiation of functionalized fullerenes in an oxygen-free environment induces conversion of the functionalized fullerenes to carbon nanotubes, carbon nanohorns, carbon onions, diamonds and/or carbon schwarzites. The carbon nanotubes can be multi-wall carbon nanotubes. Advantageously, the subject invention can be used for in-situ synthesis of carbon nanostructures within a matrix to form a carbon nanostructure composite, where positioning of the carbon nanostructures is controlled by the manner of dispersion of the functionalized fullerenes in the matrix. Carbon nanotube comprising features, such as electrical connects, can be formed on a surface by irradiating a portion of a functionalized fullerene coating with a laser beam.
Abstract:
Nanoengineered particulate coatings (NPCs) comprise a multiplicity of particulate hosts that are infused with a nanophase comprising a surfactant and at least one guest. The particulate hosts can be clay particles, the surfactant can be a cationic surfactant, and the guest can be an insect repellant. For example, montmorillonite particles infused with hexadecyl trimethyl ammonium bromide and garlic oil form NPCs that may be used to form an emulsion or suspension for spraying on citrus trees to repel Asian Citrus Psyllid.
Abstract:
Colored clay particles are prepared by the absorption of pigments, such as dyes, on the surface of clays. The surface of the clay can be modified with a surfactant such that a dye can be well bound to the particle's surface to avoid leaching of the dye into water. The colored clay particles can be used to deter insects, such as the Asian Citrus Psyllid (ACP), by coating a plant, such as a citrus plant, with the colored clay particles. The reflectance of the visible and ultraviolet light can be altered by the choice of dyes such that the spectrum visible to the insect deters the insect from the plant.
Abstract:
Colored clay particles are prepared by the absorption of pigments, such as dyes, on the surface of clays. The surface of the clay can be modified with a surfactant such that a dye can be well bound to the particle's surface to avoid leaching of the dye into water. The colored clay particles can be used to deter insects, such as the Asian Citrus Psyllid (ACP), by coating a plant, such as a citrus plant, with the colored clay particles. The reflectance of the visible and ultraviolet light can be altered by the choice of dyes such that the spectrum visible to the insect deters the insect from the plant.
Abstract:
Multimodal nanoparticles are nanoparticles containing contrast agents for PAT and one or more of luminescence imaging, x-ray imaging, and/or MRI. The multimodal nanoparticles can have a dielectric core comprising an oxide with a metal coating on the core. The particles can be metal speckled. The multimodal nanoparticles can be used for therapeutic purposes such as ablation of tumors or by neutron capture in addition to use as contrast agents for imaging.
Abstract:
A visible light photocatalyst coating includes a metal oxide that in the presence of a organic contaminate that absorbs at least some visible light or includes the metal oxide and an auxiliary visible light absorbent, where upon absorption of degradation of the organic contaminate occurs. Contaminates can be microbes, such as bacteria, viruses, or fungi. The metal oxide is nanoparticulate or microparticulate. The metal oxide can be TiO2. The coating can include an auxiliary dye having an absorbance of light in at least a portion of the visible spectrum. The coating can include a suspending agent, such as NaOH. The visible light photocatalyst coating can cover a surface of a device that is commonly handled or touched, such as a door knob, rail, or counter.