The present disclosure relates to a process for manufacturing a sterilizing filter comprising a plurality of hollow fiber membranes having a large inner diameter.

Fluid reactors include a sealed housing enclosing a reactor core that includes at least one substrate-free multichannel reactor core element. Each reactor core element is made from a non-substrate mounted, open pore cellular network material having an asymmetric, tortuous, bi-continuous two-phase material structure and contains multiple perforating fluid channels. Multiple reactor core elements can be serially and/or parallelly piped in a sealed manner to form a reactor core for a fluid reactor with a higher production capacity.

A method for processing a fluid with forward osmosis process includes providing one or more tubular membranes each including a tubular nonwoven base layer on the outside of the tubular membrane forming an outer shell of the tubular membrane and providing a lumen for feed flow; a polymer substrate layer on the lumen-side of the tubular membrane comprising three regions, including a region where the polymer substrate layer is partially intruded into the tubular base layer, a region with an open macrovoid structure and a region with an asymmetrical foamy layer, where the partially intruded region forms an intermediate layer; and a functional top layer on the polymer substrate layer. The tubular base layer comprises a longitudinal weld. The method includes providing the feed flow through the lumen and providing a draw solution on the outer shell side of the tubular membrane; and processing the feed flow with the membrane.

A water exchanger for a fuel cell based power generator includes a plurality of hollow tubular structures. Each respective hollow tubular structure includes a membrane that is selectively permeable to water vapor over oxygen and hydrogen. A manifold is coupled to the tubular structures to provide wet air on one side of the membrane and hydrogen on the other side of the membrane.

Described are filtration membranes that include a porous polyimide membrane and thermally stable ionic groups; filters and filter components that include these filtration membranes; methods of making the filtration membranes, filters, and filter components; and method of using a filtration membrane, filter component, or filter to remove unwanted material from fluid.

According to the present invention, there are provided a chamber for transplantation which has a high durability, and in which an enclosed biological constituent can be maintained for a long period of time because an interior space thereof is efficiently secured; and a method for manufacturing the chamber for transplantation. The chamber for transplantation includes one or more membranes for immunoisolation at a boundary between an inside and an outside of the chamber for transplantation, in which all of the membranes for immunoisolation include a porous membrane containing a polymer, and a joint portion at which the porous membranes are directly fusion welded to each other is provided. The method for manufacturing a chamber for transplantation includes preparing one or more porous membranes containing a polymer selected from polysulfone and polyethersulfone, bringing one part of the porous membrane into direct contact with another part of the porous membrane, and performing a heat fusion welding of the two parts that are in direct contact with each other at a temperature which is a glass transition temperature of the polymer or higher and lower than a melting point of the polymer.

The present disclosure relates to a filtration device comprising a plurality of hollow fiber membranes, a process for its production, and its use for the dead-end filtration of infusion liquids.

The present invention relates to a fuel cell membrane humidifier having an improved coupling force between a potting portion and an inner case so that the coupling force can be maintained even when a fuel cell is repeatedly driven and stopped, the fuel cell membrane humidifier according to an embodiment of the present invention comprising: a humidification module for humidifying, with the moisture in exhaust gas discharged from a fuel cell stack, the air supplied from the outside; and caps respectively coupled to both ends of the humidification module. The humidification module comprises at least one cartridge including an inner case, a plurality of hollow-fiber membranes arranged in the inner case, the potting portion fixing the ends of the plurality of hollow-fiber membranes, and a laser bonding surface which is formed between the inner case and the potting portion through a laser bonding.

A gas-permeable well for use with a bioreactor may include a reinforced gas-permeable membrane. The gas-permeable membrane may include an integrated reinforcing structure such as a stainless steel mesh or perforated screen, and may include an integrated gasket or O-ring, or other regions of increased thickness. A sensor brought into close proximity to the reinforced gas-permeable membrane may take an indirect measurement of a condition of process medium on the other side of the gas-permeable membrane, such as a measurement of dissolved oxygen or carbon dioxide.

A hollow fiber membrane module includes: a tubular container accommodating a hollow fiber membrane bundle; headers, and potted parts. The header includes a header protrusion that protrudes in an annular shape toward the tubular container. The tubular container includes double annular protrusions, which are an inner protrusion and an outer protrusion protruding toward the header. The header and the tubular container are welded together by ultrasonic welding, with the header protrusion being inserted between the inner protrusion and the outer protrusion of the tubular container. The header protrusion and the inner protrusion of the tubular container are welded together at least in one or more regions, and the header protrusion and the outer protrusion of the tubular container are welded together at least in one or more regions.