Abstract:
본 발명은 금 나노입자 및 상기 금 나노입자의 표면에 결합되는 앱타머(aptamer)를 포함하는 단백질 전달체에 관한 것이다. 본 발명에 따른 단백질 전달체는 금 나노입자에 결합한 다양한 tag의 앱타머 또는 단백질 특이적 앱타머가 전달하고자 하는 단백질에 특이적으로 결합하여 세포 내로 단백질을 효과적으로 전달할 수 있고, 매우 적은 세포독성을 갖는 금 나노입자를 이용하여 인체에 무해할 뿐만 아니라, 다양한 파장에서 빛을 반사하여 세포 내에서의 위치를 쉽게 확인할 수 있는바, 질병의 진단 또는 치료에 유용하게 이용될 수 있을 것으로 기대된다.
Abstract:
본 발명은 안정화된 금 나노입자를 이용한 가수분해 효소 또는 이의 억제제 활성의 실시간 측정방법에 관한 것으로, 보다 상세하게는, 안정화된 금 나노입자와 가수분해 산물의 결집에 따른 비색 변화를 통해 가수분해 효소 또는 이의 억제제의 활성을 실시간 측정할 수 있어 정성적 정량적 평가가 가능하다. 또한, 본 발명의 방법에 따라 가수분해 효소 억제제의 고효율 스크리닝이 가능하다. 안정화된 금 나노입자, 가수분해 효소, 비색 변화
Abstract:
PURPOSE: A method for real time measurement of hydrolase or inhibitor thereof using stabilized gold nanoparticles is provided to enable screening hydrolase inhibitor with high efficiency. CONSTITUTION: A method for real time measurement of enzyme activity using gold nanoparticles comprises: a step of preparing a mixture solution containing stabilized gold nanoparticles and enzyme reactive substrate; and a step of adding hydrolase to the mixture solution to measure color change. The gold nanoparticles are stabilized by nucleotides, DNA, detergent or polymers. The hydrolase is protease, galatosidase or phophatase. A method for measuring enzyme inhibitor activity using gold nanoparticles comprises: a step of preparing a mixture solution containing stabilized gold nanoparticles, enzyme reactive substrate and enzyme inhibitor; a step of adding a hydrolase; and a step of measuring color change.
Abstract:
PURPOSE: A composition for selectively NADH and a fluorescence chemical sensor are provided to ensure high selectivity to NADA detection. CONSTITUTION: A composition for detecting NADH(nicotinamide adenine dinucleotide reduced form) contains a compound of chemical formula 1. The composition additionally contains buffer solution. The buffer solution is a sodium phosphate buffer solution. The concentration of the sodium phosphate buffer solution is 0.5mM-5M. The buffer solution additionally contains salt. The salt is NaCl or NaNO_3. A method for detecting NADH comprises: a step of contacting a sample with the composition; and a step of probing fluorescence change by reaction.
Abstract:
PURPOSE: An iodide ion sensor is provided to determine the presence of the iodide ion in a sample by including an iodide ion sensor layer containing starch and an oxidant. CONSTITUTION: An iodide ion sensor(10) comprises a paper substrate(11) and an iodide ion sensor layer(14). The iodide ion sensor layer is formed on the surface of the paper substrate, and contains starch(12) and an oxidant(13). The thickness of the paper substrate is 220 Mm or more, and the pore size is 7 Mm or less. The oxidant is at least one selected from the group consisting of ceric ammonium nitrate, hydrogen peroxide, urea hydrogen peroxide, N-bromosuccinimide, nitric acid, ferric chloride and ferric nitrate. The iodide ion sensor layer contains 1-450 parts by weight of the oxidant to 100.0 of starch. An iodide ion detection method comprises a step of dropping a sample on the surface of the iodide ion sensor.
Abstract:
본발명은음이온검출용조성물, 이의제조방법및 이를이용한음이온의검출방법및 음이온검출용센서에관한것이다. 본발명의음이온검출용조성물은특정음이온에대해높은선택성을가지고있어, 다른음이온의존재시에도특정음이온에대해서만선택적으로검출할수 있고, 특정음이온에대해높은민감성을가지고있어, 매우작은양의음이온도검출할수 있다. 또한, 본발명의음이온검출방법은반응온도및 반응매체의속성등 검출조건에대한제약이없어, 시료에특정음이온이존재하는지여부를육안으로간단하게확인할수 있다.
Abstract:
PURPOSE: An advanced celadon green screening method for a palladium catalyzed coupling reaction is provided to visually or simply confirm the palladium catalytic cross-coupling reaction of aryl iodide with a UV absorbance conversion rate. CONSTITUTION: An advanced celadon green screening method for a palladium catalyzed coupling reaction includes gold nanoparticles and nucleotide bonded on the surface of the gold nanoparticles. The average diameter of the gold nanoparticles is in a range between 5 and 50nm. The base parts of the nucleotide are covalent-bonded on the surfaces of the gold nanoparticles. The nucleotide is one or more selected from a group including ATP, CTP, GTP, and TTP. The screening method of the palladium catalyst coupling reaction includes a stabilized gold nanoparticle solution and a specimen mixing process and a color change observation process.
Abstract:
특정 친핵체의 존부를 검출하는 방법에 관한 기술로서, 특정 친핵체 X와 반응하여 친핵성 치환반응(Nucleophilic Substitution)에 의해 분해되는 물질 Y 및 상기 분해 결과 물질 Y'와 선택적으로 결합하는 물질 Z를 이용한다. 이러한 방법에 따르면 물질 Y'와 물질 Z의 결합반응 여부를 통해 친핵체 X를 용이하게 분석할 수 있다.
Abstract:
PURPOSE: An ATP chemical sensor using an ATP fluorescence receptor and quencher binding to the same is provided to ensure wide range from hundreds nM to hundreds uM and measure various enzyme activities. CONSTITUTION: A composition for detecting ATP contains [Zn_2(9,10-bis[(2,2'-dipicolylamino)methyl]anthracene)]^4+ and pyrocatechol violet. A composition contains [Zn_2(9,10-bis[(2,2'-dipicolylamino)methyl]anthracene)]^4+ and pyrocatechol violet. A method for preparing the [Zn_2(9,10-bis[(2,2'-dipicolylamino)methyl]anthracene)]^4+ comprises: a step of adding 1.10g of 9,10-bis(chloromethyl)anthracene, 1.75g of 2,2'-dipicolyamine, and 2.21g of potassium carbonate in 10ml of DMF; a step of adding 13mg of potassium iodine by each drop and stirring; a step of adding 3ml of 1N HCl and washing with 10ml of ethyl acetate twice; a step of alkalizing with 4N of NaOH and extracting with 1:1 of ethyl acetate-THF twice; a step of washing with salt water and drying with MgSO_4; and a step of recrystalizing with THF-AcOEt.