Abstract: The present invention relates to anisotropic nanoparticles containing semiconductor compounds of group III and group V elements and a manufacturing method therefor and, more specifically, to anisotropic nanoparticles and a manufacturing method therefor, wherein the anisotropic nanoparticles have an irregular shape, such as a branched structure, a hyper-branched/dendrimer structure, or an aggregated structure with an irregular needle-shaped surface, in which two or more anisotropic shaped unit structures containing semiconductor compounds of group III and group V elements are combined.

Abstract: The invention relates to InP-based nanoclusters that include indium and phosphorus and further include zinc, chlorine, or a combination thereof, and to a method of preparing the InP-based nanoparticles including heating the InP-based nanoclusters in the presence of zinc, chlorine, or a combination thereof.

Abstract: The invention relates to InP-based nanoclusters that include indium and phosphorus and further include zinc, chlorine, or a combination thereof, and to a method of preparing the InP-based nanoparticles including heating the InP-based nanoclusters in the presence of zinc, chlorine, or a combination thereof.

Abstract: A fluorescent probe for detecting a tyrosine kinase using a compound having an ortho-hydroxy-benzaldehyde structure, and use thereof are provided. The fluorescent probe can show a change in fluorescence when the compound binds with a tyrosine kinase. The compound can be readily synthesized and has high stability and low cytotoxicity in vivo. The fluorescent probe can be used to image cells or tissues overexpressing the tyrosine kinase, the fluorescent probe can be effectively used in a composition for imaging the tissues and a method of imaging the tissues. Also, the fluorescent probe can be used to image cancer cells or tissues since the fluorescent probe can exhibit fluorescence when the fluorescent probe binds to the cancer cells or tissues overexpressing the tyrosine kinase.

Abstract: The present invention relates to a quantum dot and a preparation method therefor, and more specifically, to a novel quantum dot composite having high surface stability, and a preparation method therefor. The quantum dot composite according to the present invention constitutes a layered-structure ceramic composite in which the layered-structure ceramic comprises a polymer-quantum dot composite between the layers thereof.

Abstract: The present invention relates to a method for effectively delivering an anticancer drug into cancer cells by binding the anticancer drug to pH-sensitive metal nanoparticles so as to be separated from cancer cells. The pH-sensitive metal nanoparticles according to the present invention may be heated by photothermal therapy, thereby effectively killing cancer cells in conjunction with the isolated anticancer drug.

Abstract: A semiconductor nanocrystal heterostructure has a core of a first semiconductor material surrounded by an overcoating of a second semiconductor material. Upon excitation, one carrier can be substantially confined to the core and the other carrier can be substantially confined to the overcoating.

Abstract: A fluorescent probe for detecting a tyrosine kinase using a compound having an ortho-hydroxy-benzaldehyde structure, and use thereof are provided. The fluorescent probe can show a change in fluorescence when the compound binds with a tyrosine kinase. The compound can be readily synthesized and has high stability and low cytotoxicity in vivo. The fluorescent probe can be used to image cells or tissues overexpressing the tyrosine kinase, the fluorescent probe can be effectively used in a composition for imaging the tissues and a method of imaging the tissues. Also, the fluorescent probe can be used to image cancer cells or tissues since the fluorescent probe can exhibit fluorescence when the fluorescent probe binds to the cancer cells or tissues overexpressing the tyrosine kinase.

Abstract: The present invention relates to a surface modification method for improving the dispersion of nanoparticles, and to nanoparticles having improved dispersion properties prepared by the method. More particularly, the present invention relates to a method in which amphoteric compounds are bonded to the surfaces of nanoparticles to improve dispersion at the surfaces of nanoparticles. The present invention also relates to nanoparticles using the method. Both anions and cations are formed on the surfaces of the nanoparticles according to the present invention, and therefore the nanoparticles are electrically stable so as to achieve stability in a wide pH range, are stably dispersed in the event of a high concentration of salts, and the non-specific adsorption thereof is reduced. Novel specific substances or sensors having minimized non-specific adsorption may be produced using the nanoparticles of the present invention.

Abstract: The present invention relates to a quantum dot and a preparation method therefor, and more specifically, to a novel quantum dot composite having high surface stability, and a preparation method therefor. The quantum dot composite according to the present invention constitutes a layered-structure ceramic composite in which the layered-structure ceramic comprises a polymer-quantum dot composite between the layers thereof.

Abstract: The present invention relates to a sensor capable of detecting an aromatic nitro compound explosive, and a preparation method thereof, and more specifically, to a nanosensor system, and a detection method using the same, wherein a quantum dot-based sensor for detecting an aromatic nitro compound explosive can conveniently detect an aromatic nitro compound explosive with high sensitivity on the basis of a change in energy transfer between quantum dots. The method for detecting an explosive of the present invention makes an explosive come in contact with a quantum dot thin film to which an explosive can combine, and measures a change in fluorescence wavelength, thereby sensing an explosive.

Abstract: The present invention relates to a nanoparticle-based nitroaromatic explosive sensor for detecting nitroaromatic compounds, more specifically to stably detecting explosives in an aqueous solution by introducing, on the surface of the nanoparticles, a molecule which improves the dispersion force of the nanoparticles in an aqueous solution while binding strongly therewith, and which can simultaneously bind with the nitroaromatic compounds.

Abstract: The present invention relates to a surface modification method for improving the dispersion of nanoparticles, and to nanoparticles having improved dispersion properties prepared by the method. More particularly, the present invention relates to a method in which amphoteric compounds are bonded to the surfaces of nanoparticles to improve dispersion at the surfaces of nanoparticles. The present invention also relates to nanoparticles using the method. Both anions and cations are formed on the surfaces of the nanoparticles according to the present invention, and therefore the nanoparticles are electrically stable so as to achieve stability in a wide pH range, are stably dispersed in the event of a high concentration of salts, and the non-specific adsorption thereof is reduced. Novel specific substances or sensors having minimized non-specific adsorption may be produced using the nanoparticles of the present invention.

Abstract: The present invention relates to a method for effectively delivering an anticancer drug into cancer cells by binding the anticancer drug to pH-sensitive metal nanoparticles so as to be separated from cancer cells. The pH-sensitive metal nanoparticles according to the present invention may be heated by photothermal therapy, thereby effectively killing cancer cells in conjunction with the isolated anticancer drug.

Abstract: A semiconductor nanocrystal associated with a polydentate ligand. The polydentate ligand stabilizes the nanocrystal.

Abstract: The present invention relates to a method for effectively delivering an anticancer drug into cancer cells by binding the anticancer drug to pH-sensitive metal nanoparticles so as to be separated from cancer cells. The pH-sensitive metal nanoparticles according to the present invention may be heated by photothermal therapy, thereby effectively killing cancer cells in conjunction with the isolated anticancer drug.

Abstract: A semiconductor nanocrystal heterostructure has a core of a first semiconductor material surrounded by an overcoating of a second semiconductor material. Upon excitation, one carrier can be substantially confined to the core and the other carrier can be substantially confined to the overcoating.

Abstract: A semiconductor nanocrystal heterostructure has a core of a first semiconductor material surrounded by an overcoating of a second semiconductor material. Upon excitation, one carrier can be substantially confined to the core and the other carrier can be substantially confined to the overcoating.

Abstract: Tellurium-containing nanocrystallites are produced by injection of a precursor into a hot coordinating solvent, followed by controlled growth and annealing. Nanocrystallites may include CdTe, ZnTe, MgTe, HgTe, or alloys thereof. The nanocrystallites can photoluminesce with quantum efficiencies as high as 70%.

Abstract: A method for preparing a quantum dot-inorganic matrix composite includes preparing an inorganic matrix precursor solution containing one or more quantum dot precursors, spin-coating the precursor solution on a substrate to form an inorganic matrix thin film, and heating the inorganic matrix thin film to form an inorganic matrix, while growing the quantum dot precursors into quantum dots in the inorganic matrix, thereby yielding a quantum dot-inorganic matrix composite. The quantum dot-inorganic matrix composite thus obtained has a structure in which the quantum dots have a high efficiency and are densely filled in an inorganic matrix. The quantum dot-inorganic matrix composites can be prepared using a low temperature process, and can be used for various displays and electronic device material applications.