A system and method of applied radial technology chromatography using a plurality of beads is disclosed, with each bead comprising one or more pores therein having a diameter of about 250 to about 5000 , and each bead having an average radius between about 100 m to about 250 m. Also disclosed are processes for selecting beads for use in a radial flow chromatography column, and for purifying an unclarified feed stream using a radial flow chromatography column.

Disclosed is a filter material used to remove cells and biomolecules. The filter material includes a polymer nonwoven fabric and a modifier. The modifier is fixed on the polymer nonwoven fabric. The critical wetting surface tension of the filter material is between 45 dynes/cm and 115 dynes/cm. The surface electrical property (Zeta potential) of the filter material is between 50 and +50 mV. There is no chemical solvent residue on the filter material. In addition, a manufacturing method of the above filter material is provided.

Functionalized and crosslinked material, which may optionally be employed as a sorbent, as well as methods of making such materials and systems of using such materials are provided. The processes, methods, systems and materials herein can be used for the separation of carbon dioxide from fluid streams. In one aspect, a method of forming functionalized crosslinked particles comprises introducing at least a portion of a surface of each porous particle in at least a subset of a plurality of porous particles to a crosslinking agent and a first reagent comprising at least one adsorbing moiety. Examples of adsorbing moiety include silane-functionalized amines, amino-functionalized silanes (aminosilane), and polyamines. In some aspects the method further comprises introducing the porous particles to a second reagent comprising at least one interaction moiety such as a silane-functionalized amine, amino-functionalized silane (aminosilane), or polyamine. Examples of crosslinking agent include dialdehyde, diisocyanates, dihaloalkane, diepoxide and dianhydrides.

Object: To provide an adsorbent having improved durability and improved adsorbability of a substance to be adsorbed, and a method for manufacturing the adsorbent.

Resolution means: An adsorbent of the present invention is to be packed in a column, and is composed of powder containing particles whose surface is made of hydroxyapatite or fluorapatite in which at least some of hydroxyl groups of the hydroxyapatite have been replaced with fluorine atoms, the powder being composed of porous bodies with pores, the powder having an average particle size of 10 m or more and 90 m or less, the powder having an average particle compressive strength of 7.4 MPa or more and 8.9 MPa or less, and a modal pore size in a pore size distribution of the pores of the powder being 32.0 nm or more and 60.0 nm or less.

A method for removing a fluorine-containing compound from discharge water, which includes bringing discharge water containing two or more fluorine-containing compounds represented by the following general formula (1) or (2) into contact with an adsorbent so as to adsorb the two or more fluorine-containing compounds:
(H(CF.sub.2).sub.mCOO).sub.pM.sup.1General Formula (1):
wherein m is 3 to 19, M.sup.1 is H, a metal atom, NR.sup.b.sub.4, where R.sup.b is the same or different and is H or an organic group having 1 to 10 carbon atoms, imidazolium optionally having a substituent, pyridinium optionally having a substituent, or phosphonium optionally having a substituent; and p is 1 or 2;
(H(CF.sub.2).sub.nSO.sub.3).sub.qM.sup.2General Formula (2):
wherein n is 4 to 20; M.sup.2 is H, a metal atom, NR.sup.b.sub.4, where R.sup.b is the same as above, imidazolium optionally having a substituent, pyridinium optionally having a substituent, or phosphonium optionally having a substituent; and q is 1 or 2.

A composite material of polyurethane foam having a layer of reduced graphene oxide and polystyrene is described. This composite material may be made by contacting a polyurethane foam with a suspension of reduced graphene oxide, drying, and then irradiating in the presence of styrene vapor. The composite material has a hydrophobic surface that may be exploited for separating a nonpolar phase, such as oil, from an aqueous solution.

Disclosed herein are porous silica materials comprising a plurality of micropores, each having a pore size from approximately 0.1 nm to approximately 2 nm; a plurality of mesopores, each of the plurality of mesopores having a pore size from approximately 2 nm to approximately 50 nm; and a plurality of macropores, each of the plurality of macropores having a pore size from approximately 50 nm to approximately 50,000 nm. The porous silica materials can comprise a hygroscopic salt material dispersed within the plurality of mesopores such that the hygroscopic salt material resides in the plurality of mesopores. The hygroscopic salt material can be present in the porous silica material in an amount from approximately 10% to approximately 50% by weight, based on the total weight of the porous silica material.

The invention concerns devices and methods of filtering metallic nanoparticles and thrombi or microthrombi and other undesirable particles or molecules from blood or blood products.

A monolithic organic porous ion exchanger having a continuous skeleton and continuous pores, wherein the continuous skeleton is formed of an organic polymer being a hydrolysate of a crosslinked polymer of a (meth)acrylic acid ester and divinylbenzene, the organic polymer having any one or both of a COOH group and a COONa group as ion-exchange groups, the continuous skeleton has a thickness of 0.1 to 100 m, the continuous pores have an average diameter of 1.0 to 1000 m, the monolithic organic porous ion exchanger has a total pore volume of 0.5 to 50.0 mL/g, and has a total ion-exchange capacity of the COOH group and the COONa group per weight in a dry state of 4.0 mg equivalent/g or more.

Magnetic nanoparticle coated porous materials for recovering a contaminant from contaminated water are provided. In embodiments, such a material comprises a porous substrate having a solid matrix defining a plurality of pores distributed through the solid matrix and further comprising a coating comprising magnetic nanoparticles on surfaces of the solid matrix.