A process for extracting a surfactant from a mixture using a boronic acid modified material.

An article that can be used for biomaterial capture comprises (a) a porous substrate; and (b) borne on the porous substrate, a polymer comprising interpolymerized units of at least one monomer consisting of (1) at least one monovalent ethylenically unsaturated group, (2) at least one monovalent ligand functional group selected from acidic groups, basic groups other than guanidino, and salts thereof, and (3) a multivalent spacer group that is directly bonded to the monovalent groups so as to link at least one ethylenically unsaturated group and at least one ligand functional group by a chain of at least six catenated atoms.

An adsorbent which enables solid phase extraction of water-soluble molecules with high efficiency and excellent selectivity and an analysis system using the adsorbent, the adsorbent containing a structure represented by the formula I ##STR00001##
wherein R is a carrier component, the moiety other than R is a side-chain functional group, R and the benzene ring in the side-chain functional group are bonded directly or bonded through one or more atoms, R is selected from the group consisting of hydroxy group, alkoxy group, amino group, alkylamino group, thiol group and alkyl sulfide group, R is independently selected from the group consisting of hydroxy group, alkoxy group, alkyl group, amino group, alkylamino group, dialkylamino group, trialkylamino group, thiol group, alkyl sulfide group and hydrogen atom, x is an integer of zero or more and three or less, and n is the number of the side-chain functional groups contained in the carrier component.

The present invention relates to a chromatography ligand defined by the following formula R.sub.1R.sub.2N(R.sub.3)R.sub.4R.sub.5 wherein R.sub.1 is a substituted or non-substituted phenyl group; R.sub.2 is a hydrocarbon chain comprising 0-4 carbon atoms; R.sub.3 is a hydrocarbon chain comprising 1-3 carbon atoms; R.sub.4 is a hydrocarbon chain comprising 1-5 carbon atoms; and R.sub.5 is OH or H. The invention also comprises a separation matrix, comprising the described ligands coupled to a porous support, such as particles or a membrane. The ligand and matrix according to the invention is useful for purification of biomolecules or organic compounds, such as proteins, polypeptides, DNA etc. An advantageous use according to the invention is the purification of antibodies.

Disclosed is a limonene-sulfur polysulfide and methods for preparing the same. The polysulfide prepared according to these methods is flexible, moldable and otherwise capable of being formed in any manner consistent with a thermoplastic polymer. The limonene-sulfur polysulfide has been demonstrated to sequester inorganic palladium and inorganic mercury dissolved in water.

An article that can be used for biomaterial capture comprises (a) a porous substrate; and (b) borne on the porous substrate, a polymer comprising interpolymerized units of at least one monomer consisting of (1) at least one monovalent ethylenically unsaturated group, (2) at least one monovalent ligand functional group selected from acidic groups, basic groups other than guanidino, and salts thereof, and (3) a multivalent spacer group that is directly bonded to the monovalent groups so as to link at least one ethylenically unsaturated group and at least one ligand functional group by a chain of at least six catenated atoms.

This disclosure provides methods and devices for quantitating, separating and/or detecting water in a liquid, gas or solid sample comprising one or more chemicals, the method comprising: providing the liquid, gas or solid sample comprising water and the one or more chemicals; and exposing said liquid, gas or solid sample to at least one solid support including at least one dicationic and/or tricationic species of Formula I or II adsorbed, absorbed or immobilized on the solid support.

A carbon dioxide absorbent containing a cyclic amine compound (A) and a porous material (B), wherein the cyclic amine compound (A) has 35% by mol or more of a primary amino group with respect to total amino groups; a method for capturing carbon dioxide using the carbon dioxide absorbent; and a carbon dioxide separation and capture apparatus.

A disposable, virus-trapping membrane, and a corresponding method to remove viruses from solution are described. The membrane includes a disposable, micro-porous filter membrane and a ligand immobilized on the membrane. The ligand irreversibly and selectively binds viruses. The ligand also has a pKa sufficiently high to repel antibodies via electrostatic charge repulsion.

The present invention relates to a chromatography ligand defined by the following formula R.sub.1R.sub.2N(R.sub.3)R.sub.4R.sub.5 wherein R.sub.1 is a substituted or non-substituted phenyl group; R.sub.2 is a hydrocarbon chain comprising 0-4 carbon atoms; R.sub.3 is a hydrocarbon chain comprising 1-3 carbon atoms; R.sub.4 is a hydrocarbon chain comprising 1-5 carbon atoms; and R.sub.5 is OH or H. The invention also comprises a separation matrix, comprising the described ligands coupled to a porous support, such as particles or a membrane. The ligand and matrix according to the invention is useful for purification of biomolecules or organic compounds, such as proteins, polypeptides, DNA etc. An advantageous use according to the invention is the purification of antibodies.