Abstract:
본 발명은 대장균에 선택적으로 결합하는 단일가닥핵산 앱타머 및 이를 이용한 대장균 검출방법에 관한 것이다. 본 발명의 방법, 키트 또는 센서는 수계에 존재하는 미생물 중 대장균을 특이적으로 검출할 수 있을 뿐 아니라 식품 위생이나 의료 진단 등의 분야에도 활용될 수 있다.
Abstract:
The present invention relates to a manufacturing apparatus of a silica-titania catalyst and to a manufacturing method thereof. The present invention provides a manufacturing apparatus of a silica-titania catalyst and a manufacturing method of a silica-titania catalyst using the apparatus, the apparatus comprising: a precursor supplying part for vaporizing a silica precursor and a titania precursor and supplying the silica precursor and the titania precursor which have been vaporized to a reaction part; an oxygen supplying line for supplying an oxygen source to the reaction part; the reaction part for synthesizing vaporized products of the silica precursor and the titania precursor supplied from the precursor supplying part in order to generate the silica-titania catalyst; and a recovery part for cooling and condensing the silica-titania catalyst generated in the reaction part in order to recover the silica-titania catalyst. The recovery part includes a cooler for cooling the silica-titania catalyst flowing in from the reaction part, wherein the cooler has a swirl formation portion formed in a flow passage through which the silica-titania catalyst passes. According to the present invention, the silica-titania catalyst which has a high specific surface area, a uniform nanoparticle size and excellent thermal stability can be easily manufactured through a simple process using a chemical vapor condensation method.
Abstract:
본 발명은 질소산화물 제거용 바나디아-티타니아 촉매 및 그 제조방법에 관한 것이다. 본 발명은 티탄 전구체를 기화시키는 기화단계; 상기 기화된 티탄 전구체 기화물을 산소 공급원과 함께 반응부로 이송시키는 반응물 이송단계; 상기 반응부로 이송된 티탄 전구체 기화물과 산소 공급원을 반응시켜 티타니아 입자를 합성하는 반응단계; 상기 합성된 티타니아 입자를 응축시켜 포집하는 회수단계; 상기 회수된 티타니아 입자와 바나듐 전구체 용액을 혼합하는 혼합단계; 상기 티타니아 입자와 바나듐 전구체 용액의 혼합물을 건조시키는 건조단계; 및 상기 건조된 혼합물을 산소 또는 공기 분위기에서 소성하는 소성단계를 포함하는 질소산화물 제거용 바나디아-티타니아 촉매의 제조방법 및 이에 따라 제조된 바나디아-티타니아 촉매를 제공한다. 본 발명에 따르면, 화학기상응축법을 통해 티타니아 입자(담체)를 제조한 다음, 상기 티타니아 입자(담체)에 함침 및 소성을 통해 바나디아를 담지시켜 제조함으로써, 비표면적이 높고 균일한 미세 나노입자 크기를 가지며 바나디아의 분산도 등이 우수하여, 특히 200℃ 내지 250℃의 저온 영역에서 우수한 질소산화물 제거 효율을 갖는다.
Abstract:
The present invention relates to a single-stranded nucleic acid aptamer selectively binding to Escherichia coli (E.coli) and a method for detecting E.coli using the same. A method, a kit or a sensor of the present invention not only enables a specific detection of E.coli among microorganisms in a water system, but can also be used in areas such as food hygiene or medical diagnosis.
Abstract:
PURPOSE: A manufacturing apparatus of a composite nanoparticle is provided to prevent coagulation between particles by synthesizing a first precursor vaporized product and a second precursor vaporized product in a gas phase in an order through a U-shaped reaction chamber. CONSTITUTION: A manufacturing apparatus of a composite nanoparticle comprises a first precursor feeding unit (100), a second precursor feeding unit (200), a reaction unit (300), an oxygen supplying line (400) and a collecting unit (500). The first precursor feeding unit supplies the first precursor to the reaction unit after vaporizing. The second precursor feeding unit supplies the second precursor to the reaction unit after vaporizing. The reaction unit generates a composite nanoparticle synthesizing the first precursor vaporized product and the second precursor vaporized product. The oxygen supplying line supplies an oxygen source to the reaction unit. The collecting unit collects the composite nanoparticles generated from the reaction unit. The reaction unit comprises a U-shaped reaction chamber (310), a second precursor inlet liquid path (320) and a heat supplying means (330). The U-shaped reaction chamber has a first straight liquid path (312), a curbed liquid path (314), and a second straight liquid path (316).