Abstract:
A method of operating a microfluidic device (15), wherein the microfluidic device comprises a microfluidic channel (20), a fluid conveyance extension (30), and an absorbent microfluidic flow modulator (35). The microfluidic channel extends from a channel outlet chamber (25) of the microfluidic device and the fluid conveyance extension is fluidly coupled to the channel outlet chamber. The absorbent microfluidic flow modulator is configured to absorb a fluid from the fluid conveyance extension when fluidly coupled to the fluid conveyance extension. The method comprises admitting the fluid into the microfluidic channel and the channel outlet chamber, saturating the fluid conveyance extension with the fluid, and generating a fluid flow in the microfluidic channel by fluidly coupling the absorbent microfluidic flow modulator to the fluid conveyance extension to absorb the fluid from the fluid conveyance extension.
Abstract:
A perfusion bioreactor and a method for using the perfusion bioreactor for performing a continuous cell culture are disclosed. The perfusion bioreactor includes an outer vessel having a housing with a gas permeable membrane, an opening and a cavity; an inner vessel within the cavity; and a lid to cover the opening. A porous membrane within the cavity divides the cavity into inner and outer compartments. A fresh media port extends through the outer vessel or the at least one lid to receive a fresh media tube that has an end located in the inner compartment. A spent media port extends through the outer vessel or the at least one lid to receive a spent media tube that has an end located in the outer compartment. A mixer is within the inner compartment, and the porous membrane is attached to an opening within the inner vessel.
Abstract:
A microplate for culturing cells with automatic, continuous perfusion includes a well frame and a planar substrate. The well frame and the planar substrate form a first well, a second well, and a third well. The first well is fluidly connected with the second well with a first perfusion membrane and the first well is fluidly connected with the third well with a second perfusion membrane. Methods of fabricating the microplate and methods of culturing cells are also provided.
Abstract:
A microfluidic cell culture apparatus includes a cell retention chamber and a perfusion channel. The cell retention chamber has a structured surface. The structured surface includes a major surface from which a plurality of projections extends into the chamber. The plurality of projections are arranged to suspend cells cultured in the chamber above the major surface. The first perfusion channel is configured to provide laminar flow of a fluid through the channel and forms a plurality of openings in communication with the cell retention chamber. The openings are configured to prevent cells from the retention chamber from entering the perfusion channel.
Abstract:
A microfluidic cell culture apparatus includes a cell retention chamber and a perfusion channel. The cell retention chamber has a structured surface. The structured surface includes a major surface from which a plurality of projections extends into the chamber. The plurality of projections are arranged to suspend cells cultured in the chamber above the major surface. The first perfusion channel is configured to provide laminar flow of a fluid through the channel and forms a plurality of openings in communication with the cell retention chamber. The openings are configured to prevent cells from the retention chamber from entering the perfusion channel.