Abstract:
An adsorbent for rare earth element and a method for recovering a rare earth element, in which a rare earth element contained in an aqueous solution can be simply and inexpensively adsorbed and recovered, and a rare earth element present in an aqueous solution in combination with a base metal can be selectively adsorbed and recovered. The adsorbent includes a base material and diglycolamic acid introduced into the base material. The method for recovering a rare earth element includes steps of: bringing an aqueous solution containing a rare earth element into contact with the adsorbent for rare earth element to allow the rare earth element to be adsorbed on the adsorbent for rare earth element; and desorbing the rare earth element adsorbed on the adsorbent for rare earth element with an acid of 1 N or less.
Abstract:
Provided is a fibrous adsorbing material used for the adsorption and recovery of metals in a solution, which is a fibrous metal-adsorbing material that can be produced using existing production facilities without using special facilities or complicated operations, has high durability, is easy to diversify, and can be processed into various forms. The fibrous metal-adsorbing material is produced by a) a step of preparing an acrylate polymer having a large number of glycidyl groups in the molecule, b) a step of kneading a low-melting-point fiber matrix polymer therewith, c) a step of making the resulting mixture into a fibrous form by an melt-blend spinning method, and d) a step of allowing a long-chain ligand having an amino group or an imino group to react with glycidyl groups on the fiber surface to introduce a metal-adsorbing functional group. The fibrous metal-adsorbing material has high durability, is easy to diversify, and has various forms.
Abstract:
Guanidinyl ligand-functionalized polymers, methods of making the same, and substrates bearing a grafted coating of the ligand-functional polymers are described. The grafted polymer has the requisite affinity for binding neutral or negatively charged biomaterials, such as cells, cell debris, bacteria, spores, viruses, nucleic acids, endotoxins and proteins, at pH's near or below the pI's of the biomaterials.
Abstract:
A separation material includes a saccharide bound via a linker to a matrix for enabling the separation from a liquid of substances that selectively bind to saccharide moieties. A method for preparing the material, a method for separating from a liquid substances that selective bind to saccharides, and a device including the separation material are also disclosed.
Abstract:
An adsorbent for immunosuppressive substance, which can adsorb an excessive immunosuppressive substance directly from a body fluid, can carry out extracorporeal perfusion safely and can be utilized in treatment of cancer. The excessive immunosuppressive substance may be involved in growth of cancer cells. The adsorbent for immunosuppressive substance includes a water-insoluble carrier and a hydrophilic amino group immobilized to the water-insoluble carrier. An extracorporeal perfusion column contains the adsorbent of the invention. A method for treating cancer carries out extracorporeal perfusion using the extracorporeal perfusion column. A method of adsorbing the transforming growth factor β which is combined with another protein, includes adsorbing the transforming growth factor β and protein on an adsorbent containing a water-insoluble carrier to which quaternary ammonium groups each having 3 to 18 carbon atoms per one nitrogen atom are attached, and having a specific surface area of 0.1 m2 or more per gram.
Abstract:
In the prior art, there has not been provided a fiber that can quickly and persistently deodorize and absorb the smell and the damp feeling due to body fluid generated from the body. The present invention provides a fiber having such property, and specifically provides a moisture-absorbing and deodorizing fiber, characterized in that, a basic polymer is ionically-bonded in an amount of 0.2 to 4 mmol/g as an amount of amino group onto the surface of a moisture-absorbing fiber having a crosslinked structure and also having 3 to 8 mmol/g of carboxyl group.
Abstract:
A method for reducing the number of selected antibodies in a subject's blood, the method comprising removing blood from the subject, passing the blood along an enclosed pathway, wherein the pathway comprises one or more semi-permeable hollow fibers with one or more membranes having surfaces positioned substantially perpendicular to the length of the one or more hollow fiber and antigens specific for the antibodies immobilized on the one or more membranes, returning the treated blood to the internal circulation of the subject, wherein the returned treated blood has a reduced number of selected antibodies compared to before treatment.
Abstract:
The present invention is within the field of biomolecule purification. More closely the invention relates to chromatographic purification of insulin using a specific kind of shell beads having an inner core and an outer functionalized layer. The method enables purification at high flow rates and high purity, over 90%.
Abstract:
Polymeric compounds containing polymer backbones functionalized with ion-specific recognition elements and methods for the use of these compounds are described herein. The polymeric compounds may contain multiple types of ion-specific recognition elements depending on a specific application. The polymeric compounds can be used to remove ionic species from a solution, for example, in separations applications in which a single or multiple types of ionic species are desired to be removed from the solution.
Abstract:
The problem to be solved by the present invention is to provide a monolith adsorbent which can adsorb a target sample easily in a short time or regardless of whether the amount of the sample is small or large and extract the sample with a small amount of solvent, and easily secure the sample necessary for analysis, and a method and an apparatus for adsorption and retention using the same. The present invention is a monolith adsorbent formed by allowing a monolith structure body to contain an adsorbing material such as activated carbon or graphite, exposing the adsorbing material on the surface of the structure body and further surface-treating the surface of the monolith structure body with a hydrophobic or hydrophilic compound or a resin.