Abstract:
The disclosure herein relates to a TFF assembly including a baffle comprising a microporous filter within a bioreactor. The baffle may include a collection receptacle to capture a target product or waste materials within the baffle after passing through the microporous filter.
Abstract:
The embodiments disclosed herein are directed to a device and assembly useful for hand casting an electrophoretic separation medium. The device includes a cassette frame 10 comprising first and second arms or members 12,22 pivotally connected to one another. One or more hinges 35A,35B may be provided to allow the first member to swing or pivot relative to the second member 12,22 (or vice versa) between a cassette frame open position and a cassette frame closed position. The first and second members 12,22 each include a substrate 20,30 to maintain a gel interface, preferably a glass plate substrate. The assembly includes a base and clamping arms that cooperate to hold one or more cassette frames in compressed relation.
Abstract:
A spiral wound membrane module, comprising a perforated core having an axially extending internal bore; at least one membrane packet comprising a folded membrane sheet defining a first outer face, a first inner face, a second outer face and a second inner face, the fold of the folded membrane sheet being a leading end of the membrane packet; a feed sheet positioned between the first and second inner faces so as to be sandwiched by the folded membrane sheet; a first permeate screen adjacent the first outer face of the membrane sheet defining a first permeate channel; a second permeate screen adjacent the second outer face of the membrane sheet defining a second permeate channel; and a fluid impermeable support coupled to the leading edge of the membrane packet. Also disclosed is a method of manufacturing the spiral wound membrane module.
Abstract:
A material for biocontainers comprising a film formed of two or more layers forming a body to the film, the film having an interior and exterior side, and a substrate incorporated in the body of the film wherein the substrate is formed of a fibrous material, wherein each of the at least one of the two or more layers comprises an ethylene vinyl acetate resin. A non-constrained pressure test is also disclosed.
Abstract:
Containers for separating microcarriers from a cell culture fluid that offer a greater efficiency of filtration of cell culture fluids containing microcarriers relative to systems described in the art. The container may include a first compartment that may include a sterile collapsible bag, an inlet port providing a fluid path into the first compartment and an outlet port providing a fluid path exiting the first compartment; and a second compartment fluidly connected with the inlet port of the first compartment and including a plurality of independent or discrete microcarrier receiving regions defined by boundary walls which are partially or fully porous and having a porosity sufficient to retain the microcarriers inside the second compartment, while allowing the cell culture fluid to pass through the second compartment into the outlet port of the first compartment, where the cell culture fluid can be collected.
Abstract:
Port protection device particularly suited for an encapsulated filter unit. In certain embodiments, the protection device comprises a main body defining an internal region configured to receive a port or the like protruding from an encapsulated filter. In certain embodiments, the main body includes a slot that allows for easy removal of the protection device from the port or the like. A tube management system may be provided to receive and hold tubing. One suitable tube management system includes two spaced tangs that extend from the main body of the protection device and are configured to cooperatively receive and hold tubing between them.
Abstract:
A scaling tool for replicating filtration characteristics of a large-scale filtration device, the scaling tool comprising a housing having a fluid inlet and a fluid outlet, and a filter receiving region in fluid communication with the fluid inlet and the fluid outlet and configured to contain a membrane comprising one or more pleats, the filter receiving region being defined by a rigid wall framework configured to hold the one or more pleats of the membrane and compress the pleats in an amount effective to replicate the filtration performance of the large-scale filtration device. Also disclosed is a methodology for configuring a filter receiving region in a scaling tool.
Abstract:
A method of integrity testing porous materials that is non-destructive to the material being tested. The method includes humidifying the inlet gas stream to minimize or prevent the porous material from drying out. The inlet gas stream includes at least two gases, wherein one of the gases has a different permeability in liquid than the other, such as oxygen and nitrogen. The permeate gas stream may be subjected to a driving force such as reduced pressure to increase the flow of gases and reduce test time. Multiple porous materials can be integrity tested at the same time, such as by manifolding a plurality of them together. The integrity test is capable of detecting the presence of oversized pores or defects that can compromise the retention capability of the porous material.
Abstract:
The present disclosure relates to a filter capsule that supports direct integrity testing of an internal filter element. The filter capsule includes a filter housing having an inlet port, an outlet port, a passage running longitudinally between the inlet port and outlet port and holding a filter element, and an aseptic vent assembly. The filter housing also includes an integrity test assembly that can be used as a direct connection for integrity testing hardware, as opposed to upstream of the filter capsule. In one embodiment, the integrity test assembly comprises a body having a bore formed through its interior and a movable plunger within the bore. The plunger includes a handle to move the plunger between a closed position and an open position. Various seals between the plunger and the bore form a fluid tight seal between various portions of the plunger and the bore.