The present invention relates to systems incorporating, and uses of, hydrothermally dehydrated carbonaceous products, particularly from waste sources, that when activated provide for effective filters in water streams. The activated particles have high microporosity and provide an improved and affordable approach to decontamination of water sources. The invention further includes preparation of such systems, including steps of hydrothermal dehydration, optional carbonization, and physical activation.

The present invention relates to a method for producing biocidal, porous particles of a cross-linked polymer, and to the porous particles that can be produced according to the method of the invention. The invention further relates to porous particles of an amino-group-containing polymer (polyamine) having a relatively low swelling factor. The porous particles according to the invention are used to remove biological contaminants from water and to bind metal-containing ions from solutions. The present invention further relates to a filter cartridge which contains the porous cross-linked polymer particles according to the invention.

A biological sample reaction vessel comprising a reagent storage portion and a push rod movable relative to the reagent storage portion is provided. The reagent storage portion comprises at least one reagent containing cavity, and the reagent containing cavity is sealed by a sealing element; and the push rod is connected to the sealing element, and the push rod is used for cooperation with an external device to separate the sealing element from the reagent storage portion. In reaction, the biological sample reaction vessel cooperates with a test cassette. By inserting the biological sample reaction vessel into the external device, the reagent in the reagent storage portion can be released rapidly.

The present invention relates to a method for preparing a macromolecular composition comprising indene-derivatives. The invention also relates to the macromolecular compositions per se, and to methods of using the macromolecular compositions. The macromolecular compositions are useful for undergoing subsequent reactions with small molecules.

The polymer material of the invention is an amine-containing polymer that contains a polymer of a monomer mixture consisting of a monofunctional monomer and more than 10 mol% and 30 mol% or less of a polyfunctional monomer, and exhibits a large reversible gas absorption amount though having a low water content. An efficient production method for the polymer material of the invention includes a polymer synthesis step of synthesizing a polymer by polymerizing monomers in a reaction mixture containing a monofunctional monomer, a polyfunctional monomer, a solvent and an initiator, and an amine infiltration step of infiltrating an amine-containing processing liquid into the polymer, wherein the total monomer concentration in the reaction mixture is 0.7 mol/L. or more, the proportion of the polyfunctional monomer among the monomers contained in the reaction mixture is 10 to 30 mol%. When the monofunctional monomer has an amino group, the amine infiltration step can be omitted.

Compositions and methods for extracting tracers from subterranean fluids are provided. The compositions include a media for solid phase extraction. The media includes a homogenous mixture of a first and second sorbent. The first sorbent includes a crosslinked polystyrene divinyl benzene copolymer core functionalized with hydroxylated polystyrene divinyl benzene copolymer. The second sorbent includes a crosslinked polystyrene divinyl benzene core functionalized with a copolymer that includes secondary and tertiary amino groups. A solid phase extraction cartridge including a homogenous mixture of the first and second sorbent is also provided. Methods of extracting tracers from subterranean fluids include extracting the tracers with a solid phase extraction column that includes a homogenous mixture of the first and second sorbent.

The present invention provides a chromatography medium comprising one or more electrospun polymer nanofibers which form a stationary phase comprising a plurality of pores through which a mobile phase can permeate and use of the same in chromatography, such as the isolation of recombinant proteins, monoclonal antibodies, viral vaccines and plasmid DNA. The invention further provides for the use of the chromatographic medium in a simulated moving bed system.

The present invention relates to a device for the reversible adsorption of carbon dioxide from a gas mixture, comprising at least one adsorbent vessel comprising one or a plurality of gas permeable cartridge vessels of an inert and dimensionally stable material, and each cartridge comprising a suitable polymeric particular adsorbent having a primary amino functionality; to an arrangement including the device, and to a method for adand desorption of carbon dioxide.

A filtration device for an air purification appliance includes a first filtering cartridge structure containing a classic absorbent or adsorbent material selected from activated carbon or zeolite and a second, different filtering cartridge structure holding a filtering medium consisting of a specific adsorbent material which is porous and functionalized with at least one probe molecule in such a way as to trap aldehyde-type chemical contaminants.

A drop-in treatment apparatus and system for PFAS-impacted liquids. The drop-in treatment apparatus and system may comprise one or more cartridges having a plurality openings; one or more mesh containers disposed within the one or more cartridges; one or more tethers; a submersible pump coupled to the cartridges via the tethers; and a power source electrically coupled to the submersible pump. The drop-in treatment apparatus may further comprise a plurality of prescribed masses of sorbent or resin filled within the mesh containers, such that the prescribed masses of sorbent or resin are disposed within the cartridges. The prescribed masses of sorbent or resin may be configured to remove PFAS compounds from a liquid and may be in the range of 0.1-50,000 milligrams per milliliter of liquid volume to be treated. The sorbent may be pyrogenic carbon, granular activated carbon, biochar, zeolite, aluminosilicates, and combinations thereof.