CAS: 12061-16-4; Erbium(Iii) Oxide

专利信息

专利号:US-2003171525-A1
优先权日:1998-12-18
标题:Structure-directing catalysis for synthesis of metal, non-silicon metalloid and rare earth oxides and nitrides, and their organic or hydrido conjugates and derivatives
发明人：MORSE DANIEL E; SUMEREL JAN L
摘要:A method that utilizes a family of catalysts to produce metal, non-silicon metalloid and rare earth oxides and nitrides, and their organic or hydrido conjugates and derivatives from corresponding alkoxide-like precursors while simultaneously directing the nanostructure of the resulting material. The family of catalysts include the silicateins, a family of enzymes responsible for the structure-directing polycondensation of silica in biological systems. Silicateins catalyze the formation of structurally organized silica polymers. Other suitable catalysts include a large group of enzymes that mimic the action of silicateins, peptide biomimetics of silicateins, and other chemical entities that act catalytically by a mechanism related to that of the silicateins.

专利号:US-7335717-B2
优先权日:1998-12-18
标 题 :Methods, compositions, and biomimetic catalysts for the synthesis of silica, polysilsequioxanes, polysiloxanes, non-silicon metalloid-oxygen networks, polymetallo-oxanes, and their organic or hydrido conjugates and derivatives
发明人：MORSE DANIEL E; KISAILUS DAVID; ROTH KRISTIAN M
权利人:UNIV CALIFORNIA
摘要:The in vitro polymerization of silica, silicone, non-silicon metalloid-oxane and metallo-oxane polymer networks, by combining a catalyst and a substrate to polymerize the substrate to form silica, polysiloxanes, polymetalloid-oxanes polymetallo-oxanes (metal oxides), polyorganometalloid oxanes, polyorganometallo oxanes, and the polyhydrido derivatives thereof, at about neutral pH. The nanostructure-directing catalysts have a nucleophilic functionality and a hydrogen-bonding acceptor group, and include: silicateins, enzymes that work by a mechanism functionally related to that of the silicateins; self-assembling peptides related to those synthesized and demonstrated capable of acting as biomimetic substitutes for the silicateins; non-peptide-based synthetic polymers containing a nucleophilic group and a hydrogen bonding amine such that the polymer functions by a mechanism of action related to that of the silicateins; materials having such chemical functionality as a nucleophilic group and or a hydrogen bonding amine which, acting in concert with nanoconfinement and or chemical functionality of the surface or matrix to which the functionality is attached, acts catalytically by a mechanism related to that of the silicateins; and small-molecule non-polymeric biomimetic catalysts that operate by the same mechanism as silicateins.

专利号:US-4405523-A
优先权日:1982-03-24
标题:Process for preparation of benzophenone, anthraquinone and O-dibenzoylbenzene
发明人：FIELDS ELLIS K
权利人:STANDARD OIL CO INDIANA
摘要:Process for the concurrent synthesis of benzophenone, anthraquinone, and o-dibenzoylbenzene by pyrolysis of benzoic acid salts of yttrium, erbium, and dysprosium and mixtures thereof at temperatures of from about 200 DEG C. to 500 DEG C. and a pressure of about 0.1 to about 100 atmospheres. In an alternative method, a benzoic acid compound is passed through an oxide of yttrium, erbium, dysprosium and mixtures thereof in the presence of steam.

专利号:US-9359396-B2
优先权日:2011-07-12
标题:Material for supported synthesis and method for growing oligonucleotides or peptides
发明人：CHAIX CAROLE; DE CROZALS GABRIEL; FARRE CAROLE
权利人:CHAIX CAROLE; DE CROZALS GABRIEL; FARRE CAROLE; UNIV CLAUDE BERNARD LYON; CENTRE NAT RECH SCIENT
摘要:The invention concerns a material composed of a porous support on which functionalized nanoparticles are grafted by covalent bonding, characterized in that at least part of the nanoparticles grafted by covalent bonding is housed inside surface pores of the support, and in that the support is silica-based and is in the form of porous particles of heterogeneous shape and size, the size of the particles being larger than 1 μm and preferably within the range of 5 to 200 μm. n The invention further concerns a growth method for oligonucleotides or peptides characterized in that growth is performed on a material formed of a porous support on which functionalized nanoparticles are grafted by covalent bonding, characterized in that at least a part of the nanoparticles grafted by covalent bonding is housed inside surface pores of the support.

专利号:US-2011104052-A1
优先权日:2007-12-03
标 题 :Methods of synthesis and use of chemospheres
发明人：BARNETT BRADLEY POWERS; GESCHWIND JEFFREY
权利人:UNIV JOHNS HOPKINS
摘要:The present invention provides, in general, compositions comprising a hydrogel and an agent, for example a therapeutic agent or an imaging agent, for locoregional delivery. In certain preferred embodiments of the invention, the hydrogel compositions are detectable by Magnetic Responance and CT Scan and are used for locoregional delivery of therapeutic agents, for example chemotherapeutic agents. The invention also features polymer matrix compositions comprising nanoparticles that can be loaded after polymerization with bioactive agents, for example a diagnostic agent or therapeutic agent.

专利号:US-2005090634-A1
优先权日:1998-12-18
标题:Methods, compositions, and biomimetic catalysts for the synthesis of silica, polysilsequioxanes, polysiloxanes, non-silicon metalloid-oxygen networks, polymetallo-oxanes, and their organic or hydrido conjugates and derivatives