B01D67/00931

Adsorptive membranes for trapping viruses

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.

Universal scalable and cost-effective surface modifications

Disclosed are fouling resistant filtration membranes comprising a polymeric thin-film membrane comprising a surface. Also disclosed are methods of modifying thin-film filtration membranes, thereby improving, for example, the anti-fouling properties of the membranes. Also disclosed are methods of purifying water using the disclosed membranes. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

SUPERHYDROPHOBIC MICROFILTRATION MEMBRANE FOR MEMBRANE DISTILLATION, FILTRATION MODULE FOR MEMBRANE DISTILLATION COMPRISING THE SAME, AND METHOD FOR MANUFACTURING THE SAME
20190168168 · 2019-06-06 · ·

Disclosed are a superhydrophobic microfiltration membrane capable of facilitating higher permeate flux without separation performance deterioration when performing a water treatment based on a membrane distillation method, a filtration module for membrane distillation comprising the same, and a method for manufacturing the same. The superhydrophobic microfiltration membrane of the present invention comprises a porous member having a plurality of fine pores having an average pore size of 1 m to 100 m and has a pure water contact angle of 130 or more.

VIRAL FILTRATION MEDIA, ARTICLES, AND METHODS

Viral filtration media, an article comprising the viral filtration media, and a method of filtering a virus-containing sample using the viral filtration media, wherein the viral filtration media comprises: a porous substrate comprising a surface having a polymer grafted thereto, wherein the grafted polymer comprises interpolymerized monomers comprising: a (meth)acrylic acid monomer: and, optionally, a poly (alkylene oxide) monomer.

Crosslinked protein-based separation membrane and application thereof
12011694 · 2024-06-18 · ·

A crosslinked protein-based separation membrane and application thereof. The separation membrane is formed by attaching a crosslinked protein nanomembrane to a porous membrane, the crosslinked protein nanomembrane is formed by crosslinking a two-dimensional nanomembrane which is formed by phase transition of a protein with a crosslinking agent, the separation membrane contains a dense surface layer and a support layer, the dense surface layer is the crosslinked protein nanomembrane, and the support layer is the porous membrane; the protein is any one of lysozyme, bovine serum albumin, insulin, and ?-lactalbumin; the crosslinked protein-based separation membrane has a good biocompatibility, may serve as a dialysis membrane for blood purification, and has a higher retention ratio for large molecular proteins.

CARBON DIOXIDE ENVIRONMENTAL CONTROL SYSTEM
20190151796 · 2019-05-23 ·

An electrochemical system utilizes an anion conducting layer disposed between an anode and a cathode for transporting a working fluid. The working fluid may include carbon dioxide that is dissolved in water and is partially converted to carbonic acid that is equilibrium with bicarbonate anion. An electrical potential across the anode and cathode creates a pH gradient that drives the bicarbonate anion across the anion conducting layer to the cathode, wherein it is reformed into carbon dioxide. Therefore, carbon dioxide is pumped across the anion conducting layer.

Functionalized ceramic membranes for the separation of organics from raw water and methods of filtration using functionalized ceramic membranes

Components, systems, and methods for producing highly hydrophilitic, functionalized inorganic filtration membranes, pre-treating organic and biological-containing waste waters for minimal membrane fouling and scaling when processed using such functionalized membranes, and use of such functionalized membranes of the present invention in filtration systems for separating such pre-treated waste waters, all with respect to optimal permeate production rates, purity of permeate and resistance to fouling and scale formation on the membranes.

Polyaniline membranes, uses, and methods thereto

Disclosed herein are methods of increasing the hydrophilicity of a membrane. Membranes comprising polyaniline or co-polymer thereof and one or more gel inhibiting agents are treated with one or more hydrophilicity restoration agents, thereby increasing the hydrophilicity of a membrane. Also disclosed are membranes produced by the disclosed methods. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Sulfated cellulose hydrate membrane, method for producing same, and use of the membrane as an adsorption membrane for a virus purification process

The present invention relates to a sulfated cellulose hydrate membrane, a method for the preparation thereof and the use of the membrane as adsorption membrane for the purification of viruses.

Surface modifying agents, modified materials and methods
10240031 · 2019-03-26 · ·

The present invention relates to surface modifying agents for polymeric and/or textile materials, methods of making and/or using a surface modifying agent to modify and functionalize polymeric and/or textile materials, and/or methods of using surface modified or functionalized polymeric and textile materials, and/or products using or incorporating surface modified or functionalized polymeric and textile materials. For example, the surface modifying agent in precursor form can be styrene sulfonyl azide monomer, polymer or copolymer capable of undergoing a chemical reaction in the presence of heat or light to form one or more styrene sulfonated nitrene monomers, polymers or copolymers, which are capable of chemically reacting with the surface of a polymeric or textile material to endow a specific or desired chemical surface functionality to the surface of a polymeric or textile material. Furthermore, the present invention is possibly preferably directed to a surface modifying agent which comprises a styrene sulfonated nitrene monomer, polymer or polymer containing one or more nitrene functional groups, which are capable of chemically reacting via an insertion reaction into one or more carbon-hydrogen bonds on the surface of a polymeric or textile material in order to chemically attach a specific or desired chemical functionality to the surface of a polymeric or textile material.