C12M29/16

CULTURE DEVICE
20230279331 · 2023-09-07 ·

A culture device includes a culture vessel that contains a culture solution for culturing cells, a gas supply device that supplies a gas to the culture vessel, and a humidification device that humidifies the gas flowing from the gas supply device to the culture vessel. The humidification device includes a hollow fiber membrane filter that includes a hollow fiber membrane through which the gas from the gas supply device passes and a casing that accommodates the hollow fiber membrane, a water supply device that fills the casing of the hollow fiber membrane filter with water, and a first heater that heats the hollow fiber membrane filter.

Configurable Methods And Systems Of Growing And Harvesting Cells In A Hollow Fiber Bioreactor System

Embodiments described herein generally relate to methods and systems for configuring settings of a cell expansion system including a bioreactor. Through a user interface, a user may configure display settings, system settings, and settings associated with protocols for loading, growing and/or harvesting cells. In configuring settings for protocols and associated processes, a diagram view or window of the cell expansion system is displayed in embodiments. The diagram view displays the process settings as graphical user interface elements. Settings available for configuration are enabled for selection in the diagram view. The diagram view allows the user to visualize the settings available for task configuration and to configure enabled settings. Configured settings are stored and capable of retrieval for subsequent execution or modification of the applicable protocol.

Device and method for producing and purifying exosomes

The invention discloses a device and method for producing and purifying exosomes from progenitor cells using a closed and sterile circuit having a pumping means and a plurality of serially connected processing stations.

Passive replacement of media
11795432 · 2023-10-24 · ·

Embodiments described herein generally relate to passively replacing media in a closed cell expansion system to reduce or prevent the dilution of chemical signaling used to inhibit signaling pathways that keep a cell population in the lag phase of cell growth. To prevent such dilution, active inlet fluid flow to the system may be halted. To replace fluid lost by the system, a bag containing media may be attached to the waste line in replacement of the waste or outlet bag connected thereto. By turning off one or more pumps, media from the replacement bag is added to the system at the rate of evaporation. Chemical signaling dilution may be prevented while conserving system resources. Enhancement of chemical signaling to reduce the lag phase of cell growth may further be accomplished by adding molecules, such as chemical-signaling proteins, from a direct source to the system.

Use Of Perfusion To Enhance Production Of Fed-batch Cell Culture In Bioreactors
20230365920 · 2023-11-16 · ·

The invention relates to methods of improving protein production, e.g., large-scale commercial protein production, e.g., antibody production, utilizing a modified fed-batch cell culture method comprising a cell growth phase and a polypeptide production phase. The modified fed-batch cell culture method combines both cell culture perfusion and fed-batch methods to achieve higher titers of polypeptide products. Because the modified fed-batch cell culture method of the invention produces higher polypeptide product titers than fed-batch culture alone, it will substantially improve commercial-scale protein production. The invention also relates to a perfusion bioreactor apparatus comprising a fresh medium reservoir connected to a bioreactor by a feed pump, a recirculation loop connected to the bioreactor, wherein the recirculation loop comprises a filtration device, e.g., ultrafiltration or microfiltration, and a permeate pump connecting the filtration device to a permeate collection container.

CELL CULTURE APPARATUS
20230357692 · 2023-11-09 · ·

A cell culture apparatus is provided. A cell culture apparatus according to an exemplary embodiment of the present invention comprises: a housing having an internal space which is filled with a culture medium for cell culture; and a support assembly which is provided in a plate form having a predetermined area, comprises a plurality of supports provided in multiple stages at a certain distance apart from each other in one direction, and is inserted in the internal space in the state where the plurality of supports are coupled to each other via at least one fastening bar.

Cell Culture System

A cell culturing system includes a processing unit that cultures cells, a reactor installation device in which the processing unit is installable, a connection circuit connected to the processing unit, a circuit control device to and from which the connection circuit is attachable and detachable, and a tank device including a culture medium accommodation unit for accommodating the culture medium. The processing unit includes a plurality of bioreactors. The culture medium in the culture medium accommodation unit is supplied to the processing unit via the connection circuit. The culture medium accommodation unit is capable of accommodating the culture medium of an amount required for culturing the cells in the processing unit.

BIOLOGICAL AND ALGAE HARVESTING AND CULTIVATION SYSTEMS AND METHODS
20230340399 · 2023-10-26 ·

Algae harvesting and cultivating systems and methods for producing high concentrations of algae product with minimal energy. In an embodiment, a dead-end filtration system and method includes at least one tank and a plurality hollow fiber membranes positioned in the at least one tank. An algae medium is pulled through the hollow fiber membranes such that a retentate and a permeate are produced.

Tangential flow depth filtration systems and methods of filtration using same
11643628 · 2023-05-09 · ·

The present disclosure relates to hollow fiber tangential flow filters, including hollow fiber tangential flow depth filters, for various applications, including bioprocessing and pharmaceutical applications, systems employing such filters, and methods of filtration using the same.

ALTERNATING TANGENTIAL FLOW RAPID HARVESTING

Methods and systems of harvesting a cell product from a cell culture by culturing cells in a fluid medium until the cells have produced a cell product at a harvest concentration are disclosed. The cells are cultured in a cell culture system including a bioreactor connected to an ATF device. The methods include draining fluid medium from the bioreactor through the outlet and the ATF device until the bioreactor volume reaches a predetermined volume, and the ATF column yields at an ATF outlet a liquid containing cell product and passes fluid medium with a concentration of cell product that is lower than the harvest concentration back into the bioreactor, extracting the liquid containing cell product from the ATF outlet, refilling the bioreactor with sterile phosphate buffered saline or fluid medium without any cell product, and repeating steps until a desired amount of cell product has been removed.