The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for its preparation and separations devices containing the chromatographic material; separations devices, chromatographic columns and kits comprising the same; and methods for the preparation thereof. The chromatographic materials of the invention are chromatographic materials comprising having a narrow particle size distribution.

Structured adsorbent beds comprising a high cell density substrate, such as greater than about 1040 cpsi, and a coating comprising adsorbent particles, such as DDR and a binder, such as SiO.sub.2 are provided herein. Methods of preparing the structured adsorbent bed and gas separation processes using the structured adsorbent bed are also provided herein.

A separation membrane, suitably for oil and water separation. The membrane including a porous substrate layer and an active layer arranged over at least a part of the substrate layer. The active layer includes a hydrophilic agent and a superhydrophilic agent. Also described is a method of producing the separation membrane and a drain valve comprising the membrane.

The present invention relates to a method and/or device for improving the separation behaviors and performance of aqueous two-phase system (ATPS) for the isolation and/or concentration of one or more target analytes from a sample. In one embodiment, the present method and device comprise ATPS components within a porous material and one or more phase separation behavior modifying agents that improve the separation behavior and performance characteristics of ATPS, including but not limited to the increasing the stability or reducing fluctuations of ATPS thought the adjustment of total volume of a sample solution that undergoes phase separation, volume ratio of the two phases of the ATPS, fluid flow rates, and concentrations of ATPS components.

Composite materials for removing hydrophobic components from a fluid include a porous matrix polymer, carbon nanotubes grafted to surfaces of the porous matrix polymer, and polystyrene chains grafted to the carbon nanotubes. Examples of porous matrix polymer include polyurethanes, polyethylenes, and polypropylenes. Membranes of the composite material may be enclosed within a fluid-permeable pouch to form a fluid treatment apparatus, such that by contacting the apparatus with a fluid mixture containing water and a hydrophobic component, the hydrophobic component absorbs selectively into the membrane. The apparatus may be removed from the fluid mixture and reused after the hydrophobic component is expelled from the membrane. The composite material may be prepared by grafting functionalized carbon nanotubes to a porous matrix polymer to form a polymer-nanotube composite, then polymerizing styrene onto the carbon nanotubes of the polymer-nanotube composite.

The methods of the invention employ targeted magnetic particles, preferably targeted nanomagnetic particles, and targeted buoyant particles such as buoyant microparticles and microbubbles. Among the benefits of the invention is the ability to combine targeted magnetic particles with differentially targeted buoyant particles to achieve separation of two or more specifically cell targeted populations during the same work flow.

The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for its preparation and separations devices containing the chromatographic material; separations devices, chromatographic columns and kits comprising the same; and methods for the preparation thereof. The chromatographic materials of the invention are chromatographic materials comprising having a narrow particle size distribution.

The invention provides a sorbent material comprising a PSA that is synthesized via a sol-gel process. The sorbent material enables higher loading of PSA and other functional groups than conventional sorbents. The sorbent material can further encapsulate carbonaceous and/or non-carbonaceous particles that are distributed throughout the sorbent network. The invention also relates to a method of making the sorbent materials.

A nitrogen oxide storage material comprising: Mg.sub.1-yAl.sub.2O.sub.4-y, wherein y is a number satisfying 0≤y≤0.2, a noble metal, an oxide of a metal other than the noble metal, and a barium compound, the noble metal, the oxide, and the barium compound being loaded on Mg.sub.1-yAl.sub.2O.sub.4-y. The metal oxide comprises at least one metal oxide selected from zirconium oxide, praseodymium oxide, niobium oxide, and iron oxide.

The present invention relates to a method and/or device for improving the separation behaviors and performance of aqueous two-phase system (ATPS) for the isolation and/or concentration of one or more target analytes from a sample. In one embodiment, the present method and device comprise ATPS components within a porous material and one or more phase separation behavior modifying agents that improve the separation behavior and performance characteristics of ATPS, including but not limited to the increasing the stability or reducing fluctuations of ATPS thought the adjustment of total volume of a sample solution that undergoes phase separation, volume ratio of the two phases of the ATPS, fluid flow rates, and concentrations of ATPS components.