A hydrotalcite-like granular material having a grain size of 0.24 mm or larger is produced by drying a material that contains at least a hydrotalcite-like substance and that has a water content of 70% or lower at equal to or lower than a temperature at which the hydrotalcite-like substance is dehydrated of crystal water contained therein, preferably at 90° C. or higher and 110° C. or lower, such that the resulting hydrotalcite-like granular material has a water content of 10% or higher. In this manner, a hydrotalcite-like granular material that has a stable morphology and a high anion exchange performance and that can be produced at a low cost can be produced.

An anion exchange method using an anion exchange precursor based on a metal-chalcogenide compound is provided. The anion exchange method includes exchanging an anionic element of a nanoparticle with an element X of an anion exchange precursor represented by Na.sub.2X.sub.n via a reaction between the anion exchange precursor and the nanoparticle in the presence of a reaction medium, wherein X is at least one element selected from the group consisting of Se, S, and Te, and n is an integer from 2 to 10.

An anion exchange method using an anion exchange precursor based on a metal-chalcogenide compound is provided. The anion exchange method includes exchanging an anionic element of a nanoparticle with an element X of an anion exchange precursor represented by Na.sub.2X.sub.n via a reaction between the anion exchange precursor and the nanoparticle in the presence of a reaction medium, wherein X is at least one element selected from the group consisting of Se, S, and Te, and n is an integer from 2 to 10.

Methods and devices for providing dialysis treatment are provided. The device comprises a cartridge for providing regenerative dialysis, the cartridge comprising: a body having an inlet and an outlet and defining an interior, the interior including at least a layer comprising urease, a layer comprising zirconium oxide, a layer comprising zirconium phosphate, and a layer comprising carbon, wherein at least two of the layers are blended together to provide a gradient of the two materials.

Methods and devices for providing dialysis treatment are provided. The device comprises a cartridge for providing regenerative dialysis, the cartridge comprising: a body having an inlet and an outlet and defining an interior, the interior including at least a layer comprising urease, a layer comprising zirconium oxide, a layer comprising zirconium phosphate, and a layer comprising carbon, wherein at least two of the layers are blended together to provide a gradient of the two materials.

Methods and materials are described for the removal of iodate from aqueous solutions. The methods comprise reduction of the iodate to iodide and subsequent or concurrent removal of the iodide by sorption, ion exchange, or precipitation. These methods are effective for the removal of radioactive iodine from radioactive and nuclear wastes.

Methods and materials are described for the removal of iodate from aqueous solutions. The methods comprise reduction of the iodate to iodide and subsequent or concurrent removal of the iodide by sorption, ion exchange, or precipitation. These methods are effective for the removal of radioactive iodine from radioactive and nuclear wastes.

An anion exchange membrane includes a porous structural framework and bismuth atoms bonded to pore surfaces of the porous structural framework. Each bismuth atom is bonded to a pore surface by way of one or two oxygen atoms.

An anion exchange membrane includes a porous structural framework and bismuth atoms bonded to pore surfaces of the porous structural framework. Each bismuth atom is bonded to a pore surface by way of one or two oxygen atoms.

The present disclosure relates to compositions, kits and methods that may be used for removal of matrix components, including proteins and lipids, from one or more oligonucleotides.