36 results about "Nanoparticle Production" patented technology

In a method for manufacturing a nanoparticle, a precursor (e.g., transition metal complex) mixed with polyethylene glycol (PEG) is thermally decomposed. A nanoparticle is formed from the thermal decomposition. PEG is cost effective and less toxic than chemicals that are conventionally used for nanoparticle production, so that costs for manufacturing the nanoparticle may be decreased. Further, PEG may be reused to produce more nanoparticles.

A method for generating nanoparticles in a liquid comprises generating groups of ultrafast laser pulses, each pulse in a group having a pulse duration of from 10 femtoseconds to 200 picoseconds, and each group containing a plurality of pulses with a pulse separation of 1 to 100 nanoseconds and directing the groups of pulses at a target material in a liquid to ablate it. The multiple pulse group ablation produces nanoparticles with a reduced average size, a narrow size distribution, and improved production efficiency compared to prior pulsed ablation systems.

With this invention, in a nanoparticle production method, wherein nanoparticles are produced by irradiating a laser light irradiation portion 2a of a to-be-treated liquid 8 with a laser light, in which suspended particles are suspended, to pulverize the suspended particles in laser light irradiation portion 2a, laser light irradiation portion 2a of to-be-treated liquid 8 is cooled. In this case, by the cooling of to-be-treated liquid 8, the respective suspended particles are cooled in their entireties. When the portion 2a of this to-be-treated liquid 8 is irradiated with the laser light, the laser light is absorbed at the surfaces of the suspended particles at portion 2a. Since to-be-treated liquid 8 is cooled during this process, significant temperature differences arise between the interiors and surfaces of the suspended particles and between the surfaces of the suspended particles and the to-be-treated liquid at laser light irradiation portion 2a, and highly efficient nanoparticulation is realized.

The invention relates to a method for processing polymer emulsion of a photo anode in a dye sensitization battery, which belongs to the field of dye sensitization solar batteries. The method comprises utilizing emulsion to scatter metallic oxide particles, firstly, achieving the even scattering of nanometer particles through the self-assembling of nanometer particles and emulsion particles to prevent birdnesting, increasing specific surface area of an electrode after film forming, increasing dye adsorbance and light absorption efficiency, and improving photoelectric transformation efficiency of a solar energy battery, secondly, forming a three-dimensional bicontinuous structure whose size can be controlled through the self assembling, providing a transmission channel between an electric charge and a positive hole, improving drift velocity of electric charges, and increasing electric charge collection efficiency and photocurrent, thirdly, leading the operation of emulsion preparation to be simple and convenient, and forming stable scattering, preparing emulsion to be transmitted in packaging after nanometer particles are produced, and preventing metallic oxide nanometer particles from birdnesting in the process of storing. The photoelectric transformation efficiency of a battery can be improved at least 20% through utilizing an emulsion scattering method to prepare electrodes. Colloids which can be suitable for different film forming techniques can be got through modulating an emulsion formula.

Antitumor formulation based on nanoparticles of paclitaxel and human serum albumin as obtained by the addition of a biocompatible acid to an aqueous albumin solution before this is mixed with paclitaxel during the nanoparticle production process, the injectable solutions of this formulation having a pH between 5.4 and 5.8 and having stability and inalterability with time.

The various embodiments herein provide a system and method for enhancing polymerization and nanoparticles production using a disc reactor. The system comprises a rotating disc comprising a first surface and a second surface arranged longitudinally along a single axis of rotation, a shaft attached to the rotating disc, a ring provided on top of the first surface of the rotating disc, at least one feed inlet for providing a feed solution, a fluid inlet for providing a heat transfer fluid, a fluid outlet for exiting the heat transfer fluid, a product collector for collecting the produced nanoparticles and a product outlet for exiting the produced nanoparticles. The feed solution flows from the first surface to the second surface of the rotating disc due to centrifugal forces and gets accumulated on the product collector and exits from the disc reactor through the product outlet.

The present invention provides a process for producing nanoparticles, comprising: providing a first liquid comprising a metal salt and at least one species of ligand having a functional group capable of binding to a metal surface, providing a second liquid comprising a reducing agent; providing at least one liquid droplet generator operable to generate liquid droplets, causing the at least one liquid droplet generator to form liquid droplets of the first liquid, passing the liquid droplets through a gas to contact the second liquid so as to cause the metal salt and the at least one species of ligand to come into contact with the reducing agent, thereby causing self-assembly of nanoparticles, said nanoparticles having a core of said metal and a corona comprising a plurality of said ligands covalently bound to the core. Also provided are nanoparticles produced by the process of the invention and use of such nanoparticles in medicine.

A nanoparticle production apparatus and automatic production apparatus that allow continuous mass production of nanoparticles with a uniform particle diameter and allow freely adjusting the generation time are provided. This nanoparticle production apparatus is characterized by being configured from: reaction tubes (30, 40) which are filled with the same solvent (11) as that in a ingredient liquid (18), which is used in nanoparticle production and comprises an ingredient material (12) mixed into the solvent (11); a heating apparatus (22) which controls the temperature of the solvent (11) in the reaction tubes (30, 40) to the synthesis temperature of the nanoparticles (26); inflow ends (30e, 40e) of the reaction tubes into which the ingredient liquid (18) is supplied; rotors (35, 45) which form spiral flows (e, j) along the inner surface of the outer walls (30h, 40h) of the reaction tubes while mixing the ingredient liquid (18) supplied and the solvent (11) present in the reaction tubes (30, 40); and outflow ends (30f, 40f) of the reaction tubes (30, 40) for forming, in the spiral flows (e, j), nanoparticles (26) from the ingredient material (12) and discharging a generation liquid (65) containing the nanoparticles (26).

The present invention relates to a nanoparticle production system and methods of using said system. The nanoparticle production system includes a plasma gun including a male electrode, a female electrode, and a working gas supply configured to deliver working gas across a plasma generation region in a vortex helical flow direction . The system also includes a continuous supply system, a quench chamber, cooling conduits including laminar flow disruptors, a system overpressure module, and a conditioning fluid purification and recirculation system.

The present invention relates to a reactor for nanoparticle production, and according to an aspect of the present invention, there is provided a reactor for nanoparticle production, comprising: a main chamber including a first nozzle to which a feed gas is supplied a first nozzle; a lens housing fluidly connected to the main chamber and comprising a second nozzle for supplying flushing gas therein; a lens mounted on the lens housing; a light source for illuminating a laser for passing the laser through the lens to reach the feedstock gas in the main chamber; and a cover for exhausting nanoparticles generated in the main chamber, wherein the lens housing is configured such that the cross-sectional area of ​​at least a portion of the region Decrease in the direction facing the main chamber.

The invention relates to the field of silicon and silicon nitride nanoparticle production, in particular to a device for producing silicon and silicon nitride nanoparticle. The device of the present invention adopts that corresponding cones are arranged on the air inlet cover and the quartz cover, and the holes on the outer ring-shaped flat plate part on the quartz cover are reasonably distributed, so that the distribution of the plasma is uniform, and the size distribution of the nanoparticles is Narrower.

The invention relates to a production device and method of molybdenum oxide nanoparticles, aiming to solve the technical problems of unstable product quality, complex production procedures and low production efficiency in the production of molybdenum oxide nanoparticles in the prior art. The production device comprises a gasifying unit, a quenching unit and a collecting unit, wherein the gasifying unit is used for gasifying the precursor material of molybdenum oxide nanoparticles, the quenching unit is used for quenching the gasified molybdenum oxide nanoparticles, and the collecting unit is used for collecting the finished molybdenum oxide nanoparticles. The production device and method have the advantages of high production efficiency and stable product quality.

The present invention relates to a system for optimizing and controlling the particle size distribution and scale-up of production of nanoparticle in an aerosol flame reactor. The method provides nanoparticles with desired, optimized and controlled particle size and the specific surface area in aerosol reactors using a simulation tool with programmed instructions. The simulation tool couples flame dynamics model and particle population balance model.