专利号:US-7615169-B2 优先权日:2004-09-20 标题 :Method for synthesis of colloidal nanoparticles 发明人:STROUSE GEOFFREY FIELDING; GERBEC JEFFREY A; MAGANA DONNY 权利人:UNIV CALIFORNIA 摘要:A method for synthesis of high quality colloidal nanoparticles using comprises a high heating rate process. Irradiation of single mode, high power, microwave is a particularly well suited technique to realize high quality semiconductor nanoparticles. The use of microwave radiation effectively automates the synthesis, and more importantly, permits the use of a continuous flow microwave reactor for commercial preparation of the high quality colloidal nanoparticles.
专利号:US-7927516-B2 优先权日:2004-09-20 标题 :Method for synthesis of colloidal nanoparticles 发明人:STROUSE GEOFFREY F; GERBEC JEFFREY A; MAGANA DONNY 权利人:UNIV CALIFORNIA 摘要:A method for synthesis of high quality colloidal nanoparticles using comprises a high heating rate process. Irradiation of single mode, high power, microwave is a particularly well suited technique to realize high quality semiconductor nanoparticles. The use of microwave radiation effectively automates the synthesis, and more importantly, permits the use of a continuous flow microwave reactor for commercial preparation of the high quality colloidal nanoparticles.
专利号:US-2024424490-A1 优先权日:2021-01-25 标 题 :Method of synthesis of carbon-supported platinum group metal or metal alloy nanoparticles 发明人:WNUK PAWEL; LEWERA ADAM; JURCZAKOWSKI RAFAL; POWALA FILIP; KOLODZIEJCZYK JAN 权利人:UNIV WARSZAWSKI 摘要:The presented invention relates to a method of synthesis of carbon-supported platinum group metal or metal alloy nanoparticles, which comprises the following steps:n adsorbing on carbon support complexes of a platinum group metal with a urea complexing agent selected from a group comprising urea, urea derivative, a mixture of urea with at least one urea derivative, and a mixture of at least two urea derivatives; and reducing the complexes adsorbed on the carbon support to metal nanoparticles, forming a product of carbon-supported metal nanoparticles. nn The invention also provides the use of the carbon-supported platinum group metal or metal alloy nanoparticles obtained by the method of the invention as catalyst. n The present invention further relates to a method of adsorption of precursors of platinum group metals on the surface of a carbon support and use of complexes of platinum group metals with urea complexing agent for adsorption of platinum group metal precursors on carbon support.
专利号:US-12037623-B2 优先权日:2018-07-09 标 题 :Enzymatic synthesis of 4′-ethynyl nucleoside analogs 发明人:HUFFMAN MARK A; FRYSZKOWSKA ANNA; KOLEV JOSHUA N; DEVINE PAUL N; CAMPOS KEVIN R; TRUPPO MATTHEW; NAWRAT CHRISTOPHER C 权利人:MERCK SHARP & DOHME; MERCK SHARP & DOHME LLC 摘要:The present invention relates to an enzymatic synthesis of 4′-ethynyl-2′-deoxy nucleosides and analogs thereof, for example EFdA, that eliminates the use of protecting groups on the intermediates, improves the stereoselectivity of glycosylation and reduces the number of process steps needed to make said compounds. It also relates to the novel intermediates employed in the process.
专利号:US-2025197439-A1 优先权日:2022-03-18 标 题:Decarboxylative acetoxylation using mn(ii) or mn(iii) reagent for synthesis of 4'-acetoxy-nucleoside and use thereof for synthesis of corresponding 4'-(dimethoxyphosphoryl)methoxy-nucleotide 发明人:VAGLE KURT EDRIC; BHADURI SAYANTAN; YANG GUOHAN 权利人:DICERNA PHARMACEUTICALS INC 摘要:The present invention relates to the preparation of nucleic acids, nucleosides, nucleotides, and analogues thereof useful as potent and stable RNA interference agents. The present invention provides improved yields and avoids the use of lead tetraacetate for decarboxylative acetylation which decreases the overall cost of production by removing the need for lead remediation and offers a significant reduction in the environmental costs in production.
专利号:EP-2835177-A1 优先权日:2013-08-06 标题:Method for preparing Co-Mn on carbon catalysts and their use in carbon nanotube synthesis 发明人:DR LOLLI GIULIO; PROF DR MLECZKO LESLAW; DR SCHLÜTER OLIVER FELIX-KARL; QIANG NIU 权利人:BAYER TECHNOLOGY SERVICES GMBH 摘要:The invention relates to a method of preparing carbon based catalysts and their use in synthesizing carbon nanotubes. In this invention, carbon black was used to prepare the catalyst for the synthesis of carbon nanotubes (CNTs). By pre-treatment, the structure of carbon black was broken into pieces, which then were used as spacing materials to mix with metal precursors to form a suspension. Through coprecipitation, metals precipitate and form the solid catalyst with carbon black distributed in it. The final catalysts were obtained after washing, drying, calcination and sieving of the solid mixture. Using this catalyst, a high carbon content, easily dispersible carbon nanotubes can be synthesized via chemical vapour deposition (CVD).