-
公开(公告)号：KR1020080006232A
公开(公告)日：2008-01-16
申请号：KR1020060065119
申请日：2006-07-11
Applicant: 한국화학연구원
Abstract: A method for coating titanium suboxide at a surface of a carbon nano tube is provided to manufacture the carbon nano tube which a titanium suboxide nano particle is coated uniformly, in a condition which the adequate reduction agent is added in a solution by a wet reduction method. A method for coating titanium suboxide at a surface of a carbon nano tube includes a step of dispersing the carbon nano tube against titanium at a 0.1~15 mol ratio in a titanium salt aqueous solution with concentration of 5~20 weight%; a step of dropping hydrazine or a reduction agent of hydrate thereof to the titanium salt aqueous solution which the carbon nano tube is dispersed, at a 10~50 mol ratio; and a step of forming a titanium suboxide nano particle and coating the titanium suboxide nano particle at the surface of the carbon nano tube simultaneously.
Abstract translation: 提供了一种在碳纳米管表面上涂覆低氧化钛的方法，以制备碳纳米管，其中将低氧化钛纳米颗粒均匀地涂覆在通过湿法还原法在溶液中加入足够的还原剂的条件下 。 在碳纳米管的表面涂覆低氧化钛的方法包括：将碳纳米管以0.1〜15摩尔％的比例分散在浓度为5〜20重量％的钛盐水溶液中的工序; 以10〜50摩尔比将肼或其水合物还原剂滴加到碳纳米管分散的钛盐水溶液中的步骤; 以及形成低氧化钛纳米颗粒并在碳纳米管表面同时涂覆低氧化钛纳米颗粒的步骤。
-
42.发明公开
公开(公告)号：KR1020070000667A
公开(公告)日：2007-01-03
申请号：KR1020050056195
申请日：2005-06-28
Applicant: 한국화학연구원
CPC classification number: G01N33/5308 , B82Y10/00 , B82Y30/00 , G01N27/4145 , G01N27/4146 , G01N33/551 , G01N33/54373
Abstract: Carbon nanotube transistor biosensors using aptamers as molecular recognition elements and a method for sensing a target material in blood by using the same biosensors are provided to inexpensively detect the target protein by measuring electrical change of the carbon nanotube when the aptamers on the carbon nanotube is exposed to the target protein, and enhance detection sensitivity and selectivity by using carbon nanotube and DNA aptamers. The carbon nanotube transistor biosensor comprises (i) a carbon nanotube transistor containing source, drain and gate, where the channel region is composed of carbon nanotube, (ii) DNA aptamers bound to the surface of the carbon nanotube, and (iii) a fixing material for fixing the aptamers to the carbon nanotube, wherein the channel is composed of single wall or multiple wall nanotubes, and metal oxide nanowire and semiconductor nanowire showing transistor properties; the nanowire has diameter of 50 nm or less and uses the aptamers as recognition materials; the single wall nanotube has diameter of 2 nm and the multiple wall nanotube has diameter of 50 nm or less; and the aptamer-fixing material is pyrene or other molecules having affinity to the carbon nanotube. The method for sensing a target material in blood comprises the steps of: manufacturing the carbon nanotube transistor containing the carbon nanotube with aptamers; measuring the electrical conductivity change of the carbon nanotube when the aptamers are exposed to the target material; and detecting the target material based on the data on the electrical conductivity change, wherein the target material is protein, peptide, amino acid, nucleotide, drug, vitamin or organic/inorganic compound.
Abstract translation: 提供了使用适配体作为分子识别元件的碳纳米管晶体管生物传感器和通过使用相同的生物传感器来感测血液中的靶物质的方法，通过在碳纳米管上的适体暴露时测量碳纳米管的电变化来廉价地检测靶蛋白 并通过使用碳纳米管和DNA适配体增强检测灵敏度和选择性。 碳纳米管晶体管生物传感器包括（i）含有源极，漏极和栅极的碳纳米管晶体管，其中沟道区域由碳纳米管组成，（ii）与碳纳米管表面结合的DNA适体，和（iii）固定 用于将适体固定到碳纳米管的材料，其中所述通道由单壁或多壁纳米管构成，并且金属氧化物纳米线和显示晶体管性质的半导体纳米线; 纳米线的直径为50nm以下，使用适配体作为识别材料; 单壁纳米管的直径为2nm，多壁纳米管的直径为50nm以下， 适体固定材料是对碳纳米管具有亲和性的芘或其他分子。 用于感测血液中的目标材料的方法包括以下步骤：用适体制造含有碳纳米管的碳纳米管晶体管; 当适配体暴露于目标材料时测量碳纳米管的电导率变化; 并且基于电导率变化的数据检测目标材料，其中目标材料是蛋白质，肽，氨基酸，核苷酸，药物，维生素或有机/无机化合物。
-
公开(公告)号：KR100598082B1
公开(公告)日：2006-07-07
申请号：KR1020040053173
申请日：2004-07-08
Applicant: 한국화학연구원
IPC: C09D11/326 , C09D11/38
Abstract: 본 발명은 부분 소수화된 잉크젯용 수계 고농도 금속 나노 졸의 제조방법에 관한 것으로서, 더욱 상세하게는 금속염 수용액에 고분자 전해질을 첨가하여 고분자-금속염 착체를 형성시킨 후 이를 환원제로 처리하여 금속 나노 졸을 제조함에 있어서, 상기 고분자 전해질로서는 아크릴계 반복단위, 폴리에틸렌글리콜류가 결합된 아크릴레이트계 반복단위 및 아크릴아마이드 반복단위를 포함하여 구성되어, 친수부와 소수부가 함께 도입된 주쇄(main chain)와, 상기 주쇄의 일부분에 친수성이 강한 고분자 측쇄(side chain)가 결합되어 있는 그래프트(graft) 공중합체를 선택 사용함으로써, 생성된 금속 나노 졸의 입자크기가 100 ㎚ 이하로 작고 균일하면서도 잉크젯 기법으로 소수성 기판에 직접 인쇄가 가능하도록 부분 소수화된 잉크젯용 수계 고농도 금속 나노 졸의 제조방법에 관한 것이다.
고분자 전해질, 금속 나노 졸, 소수성 기판-
公开(公告)号：KR1020060004162A
公开(公告)日：2006-01-12
申请号：KR1020040053173
申请日：2004-07-08
Applicant: 한국화학연구원
IPC: C09D11/326 , C09D11/38
CPC classification number: C09D11/326 , C08L33/26 , C09D11/38
Abstract: 본 발명은 부분 소수화된 잉크젯용 수계 고농도 금속 나노 졸의 제조방법에 관한 것으로서, 더욱 상세하게는 금속염 수용액에 고분자 전해질을 첨가하여 고분자-금속염 착체를 형성시킨 후 이를 환원제로 처리하여 금속 나노 졸을 제조함에 있어서, 상기 고분자 전해질로서는 아크릴계 반복단위, 폴리에틸렌글리콜류가 결합된 아크릴레이트계 반복단위 및 아크릴아마이드 반복단위를 포함하여 구성되어, 친수부와 소수부가 함께 도입된 주쇄(main chain)와, 상기 주쇄의 일부분에 친수성이 강한 고분자 측쇄(side chain)가 결합되어 있는 그래프트(graft) 공중합체를 선택 사용함으로써, 생성된 금속 나노 졸의 입자크기가 100 ㎚ 이하로 작고 균일하면서도 잉크젯 기법으로 소수성 기판에 직접 인쇄가 가능하도록 부분 소수화된 잉크젯용 수계 고농도 금속 나노 졸의 제조방법에 관한 것이다.
고분자 전해질, 금속 나노 졸, 소수성 기판-
公开(公告)号：KR1020040085982A
公开(公告)日：2004-10-08
申请号：KR1020030020858
申请日：2003-04-02
Applicant: 한국화학연구원
CPC classification number: B01J23/74 , B01J23/755 , B82Y30/00 , B82Y40/00 , C01B32/166 , C01B2202/36 , D01F9/12 , Y02P20/544 , B82B3/00 , C01B32/05
Abstract: PURPOSE: Provided is a method for producing carbon nanotubes at low temperature and low costs in a large quantity through liquid-state reaction by treating liquid hydrocarbon materials as carbon sources under supercritical condition. CONSTITUTION: Carbon nanotubes are produced by the following steps of: (i) putting a mixture of 80-99.999wt.% of hydrocarbon materials, one or more of mixtures selected from saturated hydrocarbon, unsaturated carbon, aromatic hydrocarbon and derivatives thereof, and 0.001-20wt.% of nucleus materials in a high pressure vessel, wherein the nucleus materials are nano-sized metal particles or metal oxides enabling formation of seeds, and the metals are one or more of mixtures selected from transition metals comprising Co, Ni and Fe, precious metals(Pt, Pd), alkali metals and alkali earth metals; (ii) applying pressure of 1-400atm. and 200-800deg.C of temperature to liquid hydrocarbon materials for 1-600min to be in equilibrium between liquid state and vapor state; (iii) cooling reactants(supercritical fluid) at a rate of 0.01-50deg.C/min which is the same as a heating rate; (iv) separating carbon nanotubes from reactants. The resultant carbon nanotubes are applied to field emitters, nano-composites and nano devices.
Abstract translation: 目的：提供一种通过在超临界条件下处理液态烃材料作为碳源，通过液态反应在低温低成本生产碳纳米管的方法。 构成：碳纳米管通过以下步骤制备：（i）将80-99.999重量％的烃材料，一种或多种选自饱和烃，不饱和碳，芳族烃及其衍生物的混合物和0.001 -20重量％的核材料在高压容器中，其中核材料是能够形成种子的纳米尺寸金属颗粒或金属氧化物，并且金属是一种或多种选自包含Co，Ni和Fe的过渡金属的混合物 ，贵金属（Pt，Pd），碱金属和碱土金属; （ii）施加1-400atm的压力。 和200-800℃的温度对液态烃材料1-600min处于液态和蒸汽状态之间的平衡状态; （iii）以与加热速度相同的0.01-50℃/分钟的速度冷却反应物（超临界流体）; （iv）从反应物中分离碳纳米管。 所得碳纳米管应用于场发射体，纳米复合材料和纳米器件。
-
-
-
-
Search Results
147
records
(took 0.024 seconds)
