Abstract:
본 발명은 나이트로 방향족 화합물 폭발물을 검출할 수 있는 센서 및 그 제조 방법에 관한 것으로서, 보다 상세하게는 양자점 기반의 나이트로 방향족 폭발물 검출 센서가 양자점 간의 에너지전이 변화를 기반으로 하여, 나이트로 방향족 폭발물을 간편하면서 고민감도로 검출할 수 있는 나노센서 시스템 및 이를 이용한 검출 방법에 관한 것이다. 본 발명의 폭발물 감지 방법은 폭발물이 결합 가능한 양자점 박막을 폭발물과 접촉시키고, 형광 파장 변화를 측정하여 폭발물을 감지하는 것을 특징으로 한다. 본 발명에 따른 양자점 기반 폭발물 검출방법은 종래에 알려진 양자점 형광 세기 변화를 이용한 검출 방법과 달리, 형광 파장 변화를 이용하기 때문에 주위 환경 변화에 민감하지 않을 뿐 아니라 신속한 검출이 가능하고, 낮은 농도의 폭발물에 대하여도 고민감도로 검출할 수 있다는 장점을 갖는다. 따라서 향후 광범위한 상용화가 기대된다.
Abstract:
본 발명은 나이트로 방향족 화합물을 감지할 수 있는 나노입자 기반의 나이트로 방향족 폭발물 검출 센서에 관한 것으로서, 보다 상세하게는 나노입자와 강하게 결합하면서 수용액 상에서 나노입자의 분산력을 향상시키고 동시에 나이트로 방향족 화합물과 결합할 수 있는 분자체를 나노입자의 표면에 도입하여 수용액 상에서 안정적으로 폭발물을 감지하는 방법에 관한 것이다.
Abstract:
The present invention provides hydrogen peroxide sensitive metal nanoparticles containing metal nanoparticles containing a biocompatibility metal and hydrogen peroxide reacting ions which can be oxidized by hydrogen peroxide. The metal nanoparticles contains metal or silica coated with metal.
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, in which a quantum dot-based sensor for detecting an aromatic nitro compound explosive can easily 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. According to the present invention, the method for detecting an explosive on the basis of quantum dots uses a change in fluorescence wavelength which is unlike a known detection method using the change in quantum dot fluorescence intensity, and thus is not sensitive to a change in surroundings, can carry out rapid detection and detect even a low concentration of explosives with high sensitivity. Thus, the present invention is expected to be extensively commercialized. [Reference numerals] (AA) Quantum dot thin film;(BB) Light source;(CC) Spectroscope
Abstract:
The present invention relates to a layered double hydroxide and a manufacturing method thereof and, more specifically, to the layered double hydroxide and mixed metal oxide catching nanoparticles and the manufacturing method thereof. The nanoparticle-layered double hydroxide composite of the present invention can be produced under mild conditions, be mass-produced and reduce production costs. Moreover, the properties of the composite can be controlled since the composite is manufactured by using synthetic nanoparticles in which physical properties including size etc are controlled. The nanoparticle-layered double hydroxide of the present invention can be used as a layered double hydroxide in various application fields including anion exchangers, catalyst supporters, electronic materials, optical coating materials, ultraviolet ray absorption bodies and optical catalyst etc and additionally has a property according to the interaction of the nanoparticles and parent materials catching the nanoparticles. A synthesized composite reduces the penetration of foreign materials like gas or moisture by forming a layered double hydroxide structure surrounding nanoparticles. The composite can prevent phase separation or aggregation when heat is applied by enlarging the spatial restriction power of nanoparticles in the composite. In a quantum dot nanoparticle-layered double hydroxide or a mixed metal oxide composite, a metal oxide or a layered double hydroxide acts as the surface protection layer of a quantum dot, thereby promoting a phenomenon such as the improvement of emission properties. [Reference numerals] (AA) Divalent or trivalent metal cation;(BB) Hydroxyl ion;(CC) Nanoparticle having a functional group of negative charge;(DD) Composition unit of octahedron
Abstract:
PURPOSE: A composition for fabricating a semi-conductor nano crystal-polymer composite is provided to ensure low processing cost and high specific surface area. CONSTITUTION: A composition for fabricating a semi-conductor nano crystal-polymer composite contains polymers, precursor compounds, and solvent. The polymer is selected from the group consisting of thermoplastic polymers and electric conductive polymers. The precursor compounds contain salt having each element forming semiconductor nanocrystal.
Abstract:
본 발명은 pH 민감성 입자 및 이의 제조 방법 및 용도에 관한 것으로서, 보다 상세하게는 pH 민감성 금속 나노 입자와 이의 제조 방법 및 광열 치료를 통한 세포사멸을 통한 치료용 용도를 제공하는 것이다. 본 발명에 따른 pH 민감성 금속 나노입자는 금속 나노입자에 pH에 따라 전하가 변하는 pH 민감성 리간드 화합물이 형성되어 있어, 암세포와 같은 비정상적 pH 환경을 가지는 세포에서 응집될 수 있다. 본 발명에 따른 pH 민감성 금속 나노입자는 응집 후 광열 과정을 통해서 세포의 사멸을 유도할 수 있어, 암세포 치료와 같이 세포의 사멸을 통한 치료가 가능하게 된다.
Abstract:
PURPOSE: A potential of hydrogen(pH)-sensitive compound and a manufacturing method thereof are provided to induce the extinction of cells through a photo thermal process after the coherence of a pH-sensitive nanoparticle. CONSTITUTION: A potential of hydrogen(pH)-sensitive compound or its salt are marked with chemical formula I. A manufacturing method of the pH-sensitive compound comprises the following steps: reacting lipoic acid and ethylene diamine to obtain a compound marked with chemical formula II; reacting the compound marked with the chemical formula II with citraconic anhydride to obtain a compound marked with chemical formula III; and reacting the compound marked with the chemical formula II with sodium borohydride.