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362 results about "Polyoxometalate" patented technology

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In chemistry, a polyoxometalate (abbreviated POM) is a polyatomic ion, usually an anion, that consists of three or more transition metal oxyanions linked together by shared oxygen atoms to form closed 3-dimensional frameworks. The metal atoms are usually group 6 (Mo, W) or less commonly group 5 (V, Nb, Ta) transition metals in their high oxidation states. They are usually colorless or orange, diamagnetic anions. Two broad families are recognized, isopolymetalates, composed of only one kind of metal and oxide, and heteropolymetalates, composed of one metal, oxide, and a main group oxyanion (phosphate, silicate, etc.). Many exceptions to these general statements exist.

Microspheres capable of binding radioisotopes, optionally comprising metallic microparticles, and methods of use thereof

InactiveUS20060067883A1Powder deliveryNervous disorderMicrosphereSide chain

One aspect of the present invention relates to a microsphere, comprising a hydrophilic polymer comprising a plurality of pendant anionic groups; a transition-metal, lanthanide or group 13-14 metal oxide, polyoxometalate or metal hydroxide or combination thereof; and a first radioisotope that emits a therapeutic β-particle. In certain embodiments, the microsphere further comprsies a second radioisotope that emits a diagnostic γ-ray; wherein the atomic number of the first radioisotope is not the same as the atomic number of the second radioisotope. In certain embodiments, the microsphere is composed of polymer impregnated with zirconia bound to 32p as the source of the therapeutic β-emissions and 67Ga as the source of the diagnostic γ-emissions. Another aspect of the present invention relates to the preparation of a microsphere impregnated with a radioisotope that emits therapeutic β-particles and a radioisotope that emits diagnostic β-emitting radioisotope and a γ-emitting radioistope; wherein the atomic number of the first radioisotope is not the same as the atomic number of the second radioisotope. In certain embodiments, said microspheres are administered to the patient through a catheter. In another embodiment, the microsphere is combined with the radioisotopes at the site of treatment.

Owner:BIOSPHERE MEDICAL INC

Catalytic method to remove CO and utilize its energy content in CO-containing streams

InactiveUS20060024539A1Low costUse minimizedMaterial nanotechnologyGas treatmentFuel cellsCatalytic method

Disclosed are a reactor and a corresponding method for producing electrical energy using a fuel cell by selectively oxidizing CO at room temperature using polyoxometalate compounds and transition metal compounds over metal-containing catalysts, thereby eliminating the water-gas shift reaction and the need to transport and vaporize liquid water in the production of H2 for fuel cells. The reactor also functions to deplete CO from an incoming gas stream.

362 results about "Polyoxometalate" patented technology

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