摘要:
The material of the present invention is a mixture of catalytically active material and carrier materials, which may be catalytically active themselves. Hence, the material of the present invention provides a catalyst particle that has catalytically active material throughout its bulk volume as well as on its surface. The presence of the catalytically active material throughout the bulk volume is achieved by chemical combination of catalytically active materials with carrier materials prior to or simultaneously with crystallite formation.
摘要:
A system and method are disclosed for coating surfaces of expandable medical devices with composite coatings. Coatings are composed of various materials including, e.g., polymers and drugs. Transfer of the coatings within a patient or other host forms a drug-eluting coating that delivers time-released drugs over time for treatment of a medical condition.
摘要:
This disclosure describes the application of a supplemental corona source to provide surface charge on submicrometer particles to enhance collection efficiency and micro-structural density during electrostatic collection.
摘要:
A system and method are disclosed for coating surfaces of expandable medical devices with composite coatings. Coatings are composed of various materials including, e.g., polymers and drugs. Transfer of the coatings within a patient or other host forms a drug-eluting coating that delivers time-released drugs over time for treatment of a medical condition.
摘要:
This disclosure describes the application of a supplemental corona source to provide surface charge on submicrometer particles to enhance collection efficiency and micro-structural density during electrostatic collection.
摘要:
This invention is directed to conducting chemical reactions in reverse micelle or microemulsion systems comprising a substantially discontinuous phase including a polar fluid, typically an aqueous fluid, and a microemulsion promoter, typically a surfactant, for facilitating the formation of reverse micelles in the system. The system further includes a substantially continuous phase including a non-polar or low-polarity fluid material which is a gas under standard temperature and pressure and has a critical density, and which is generally a water-insoluble fluid in a near critical or supercritical state. Thus, the microemulsion system is maintained at a pressure and temperature such that the density of the non-polar or low-polarity fluid exceeds the critical density thereof. The method of carrying out chemical reactions generally comprises forming a first reverse micelle system including an aqueous fluid including reverse micelles in a water-insoluble fluid in the supercritical state. Then, a first reactant is introduced into the first reverse micelle system, and a chemical reaction is carried out with the first reactant to form a reaction product. In general, the first reactant can be incorporated into, and the product formed in, the reverse micelles. A second reactant can also be incorporated in the first reverse micelle system which is capable of reacting with the first reactant to form a product.
摘要:
The present invention is an active microchannel fluid processing unit and method of making, both relying on having (a) at least one inner thin sheet; (b) at least one outer thin sheet; (c) defining at least one first sub-assembly for performing at least one first unit operation by stacking a first of the at least one inner thin sheet in alternating contact with a first of the at least one outer thin sheet into a first stack and placing an end block on the at least one inner thin sheet, the at least one first sub-assembly having at least a first inlet and a first outlet; and (d) defining at least one second sub-assembly for performing at least one second unit operation either as a second flow path within the first stack or by stacking a second of the at least one inner thin sheet in alternating contact with second of the at least one outer thin sheet as a second stack, the at least one second sub-assembly having at least a second inlet and a second outlet.
摘要:
The present invention is an active microchannel fluid processing unit and method of making, both relying on having (a) at least one inner thin sheet; (b) at least one outer thin sheet; (c) defining at least one first sub-assembly for performing at least one first unit operation by stacking a first of the at least one inner thin sheet in alternating contact with a first of the at least one outer thin sheet into a first stack and placing an end block on the at least one inner thin sheet, the at least one first sub-assembly having at least a first inlet and a first outlet; and (d) defining at least one second sub-assembly for performing at least one second unit operation either as a second flow path within the first stack or by stacking a second of the at least one inner thin sheet in alternating contact with second of the at least one outer thin sheet as a second stack, the at least one second sub-assembly having at least a second inlet and a second outlet.
摘要:
Methods and an apparatus are disclosed for depositing tantalum metal films in next-generation solvent fluids on substrates and/or deposition surfaces useful, e.g., as metal seed layers. Deposition involves low valence oxidation state metal precursors soluble in liquid and/or compressible solvent fluids at liquid, near-critical, or supercritical conditions for the mixed precursor solutions. Metal film deposition is effected via thermal and/or photolytic activation of the metal precursors. The invention finds application in fabrication and processing of semiconductor, metal, polymer, ceramic, and like substrates or composites.
摘要:
Methods and an apparatus are disclosed for depositing tantalum metal films in next-generation solvent fluids on substrates and/or deposition surfaces useful, e.g., as metal seed layers. Deposition involves low valence oxidation state metal precursors soluble in liquid and/or compressible solvent fluids at liquid, near-critical, or supercritical conditions for the mixed precursor solutions. Metal film deposition is effected via thermal and/or photolytic activation of the metal precursors. The invention finds application in fabrication and processing of semiconductor, metal, polymer, ceramic, and like substrates or composites.