Abstract:
A process comprising preparing a concentration agent comprising (a) providing a particulate support selected from diatomaceous earth, metal oxide-modified diatomaceous earth, and combinations thereof; and (b) depositing fine-nanoscale gold or platinum on said support by physical vapor deposition.
Abstract:
A process comprising (a) providing a concentration agent that comprises diatomaceous earth bearing, on at least a portion of its surface, a surface treatment comprising a surface modifier comprising titanium dioxide; (b) providing a sample comprising at least one microorganism strain selected from strains of bacteria, fungi, yeasts, protozoans, viruses, bacterial endospores, and combinations thereof; and (c) contacting said concentration agent with said sample such that at least a portion of said at least one microorganism is bound to or captured by said concentration agent.
Abstract:
The present invention relates to a method of oxidizing CO using gold-based, heterogeneous catalyst systems comprising nanoscale gold deposited onto a nanoporous support by PVD methods, by contacting said catalyst system with CO.
Abstract:
A process for preparing a concentration agent comprising (a) providing a particulate support comprising diatomaceous earth, metal oxide-modified diatomaceous earth, or combinations thereof; (b) providing et hydrolyzable titanium dioxide precursor compound; (c) combining said support and said compound; and (d) hydrolyzing said compound so as to deposit titanium dioxide on said support; wherein when said particulate support consists of diatomaceous earth the process further comprises (e) calcining said concentration agent.
Abstract:
The present invention relates to a method of oxidizing CO using gold-based, heterogeneous catalyst systems comprising nanoscale gold deposited onto a nanoporous support by PVD methods, by contacting said catalyst system with CO.
Abstract:
Use of physical vapor deposition methodologies to deposit nanoscale gold on activating support media makes the use of catalytically active gold dramatically easier and opens the door to significant improvements associated with developing, making, and using gold-based, catalytic systems. The present invention, therefore, relates to novel features, ingredients, and formulations of gold-based, heterogeneous catalyst systems generally comprising nanoscale gold deposited onto a nanoporous support.