One aspect of the present invention relates to an adsorption filter containing an activated carbon and a fibrous binder. The adsorption filter has a density of 0.400 g/ml or more, and a pore volume at a pore diameter of 1 to 20 μm is 0.60 ml/g or less as measured by mercury intrusion porosimetry.

Provided are a toxin separator and the like which are capable of selectively separating toxin present in a biological fluid by binding to protein, from the toxin and the protein. The toxin separator of the present invention also includes activated carbon of which a pore volume of pores having a pore diameter from 1.4 to 35 nm as measured by a nitrogen adsorption method is 0.06 cm.sup.3/g or greater.

In various aspects, the present disclosure pertains to high purity chromatographic materials that comprise a chromatographic surface wherein the chromatographic surface comprises a hydrophobic modifier and an ionizable modifier comprising one or more anion exchange moieties that are positively charged when ionized, as well as devices containing such materials. In other aspects, the present disclosure provides methods for mixed mode, anion exchange reversed phase liquid chromatography comprising: (a) loading a sample comprising a plurality of acidic analytes (e.g., acidic glycans) onto a chromatographic separation device comprising such a high purity chromatographic material and (b) eluting adsorbed acidic analytes from the high purity chromatographic material with a mobile phase comprising water, organic solvent, and an organic acid salt, wherein during the course of elution a pH of the mobile phase, an ionic strength of the mobile phase, and a concentration of the organic solvent are altered over time.

Covalently cross-linked copolymers are described herein. More specifically, polysaccharide-polyamine copolymeric matrices or structures and cationic copolymeric matrices are described herein. The polysaccharide-polyamine copolymers, when protonated, can form cationic copolymeric matrices having exceptionally high densities of cationic sites. In one form, the covalently cross-linked copolymers provide a three-dimensional structure, especially when hydrated.

Highly spherical sorbents of porous hydroxyapatite materials and methods of producing these sorbents are disclosed. The sorbents of the present invention have good mechanical stability and are useful as chromatography media for the separation of biomolecules, such as proteins and nucleic acids.

A carbon dioxide adsorbent including a hierarchical zeolite. The hierarchical zeolite defines micropores having a pore width between about 0.4 nm and about 2 nm, and at least one of: mesopores having a pore width between about 2 nm and about 50 nm; and macropores having a pore width greater than about 50 nm.

A fluid purification system capable of removing lead from significant volumes of fluids also containing at least one of TOC and TTHM under low pressure conditions and at reasonable flow rates is provided. The system comprises a first fluid purification media comprising a rigid porous purification block. The rigid purification block includes a longitudinal first surface; a longitudinal second surface disposed inside the longitudinal first surface; and a porous high density polymer disposed between the longitudinal first surface and the longitudinal second surface. The system further includes a second fluid purification media, comprising a fibrous, nonwoven fabric disposed adjacent to the first surface of the first fluid purification media, the second surface of the first purification media, or both.

Disclosed is a pharmaceutical composition for treating hypercholesterolemia. The pharmaceutical composition includes a polysaccharide-polyamine copolymer and a pharmaceutically acceptable salt thereof as active ingredients. The polysaccharide-polyamine copolymer is formed by copolymerization of the following two parts: a selectively oxidized polysaccharide with 2,3-dialdehyde, and a polyamine with an amino functional group; the polyamine with an amino functional group and the selectively oxidized polysaccharide with 2,3-dialdehyde can form a net structure by means of covalent crosslinking, resulting in a hydrogel with an amino functional group or a granular polysaccharide-polyamine copolymer, wherein the amino functional group in the hydrogel with an amino functional group or the granular polysaccharide-polyamine copolymer can be protonated so as to form a cationic copolymer of a three-dimensional network structure having a protonated site, and the nitrogen content of the cationic copolymer and the nitrogen content of the polysaccharide-polyamine copolymer are above 12.3 wt %, and both the cationic copolymer and the polysaccharide-polyamine copolymer are water-insoluble.

The present invention relates to a method for producing a highly porous fine powdery slaked lime composition, comprising a fluidification step for forming said highly porous fine powdery slaked lime composition having an Alpine fluidity greater than 50% and which is carried out in a dryer/grinder chosen from the group consisting of a pin-type dryer/grinder, a cage-type dryer/grinder, an instantaneous dryer/disagglomerator and a combination of these until the powdery slaked lime composition has a non-solid residual-phase content of less than or equal to 3.5% by weight and greater than or equal to 0.3% by weight, as well as the product obtained therefrom.

Nanomaterials (100) in particular HEPA air filter media. One embodiment is a nanomaterial (100) that includes a plurality of nanofibers (140) that form a randomly interwoven network defining three-dimensional pores (160) therein. The nanomaterial further includes a plurality of beads (120) with a bead diameter of 2-20 m that are distributed randomly within the plurality of nanofibers (140). The beads (120) support the nanofibers (140) to prevent the pores (160) from collapsing.