Abstract:
The invention relates generally to solid supports for chromatography. In specific embodiments the invention provides for solid supports suitable for affinity chromatography along with methods, systems and kits which use the same.
Abstract:
A micro-incubator manifold for improved microfluidic configurations and systems and methods of manufacture and operation for a manifold and automated microfluidic systems.
Abstract:
Novel compositions for re-moving impurities such as, protein aggregates, from a sample containing a protein of interest, e.g., an antibody. Such compositions can be used prior to the virus filtration step during protein purification, to remove aggregates and protect the virus filter from fouling, therefore improving virus filter capacity. A porous solid support including a co-polymer having at least two monomers, wherein at least one of the monomers comprises acrylamide and at least a second monomer comprises a hydrophobic binding group, where the solid support selectively binds protein aggregates, thereby to separate the monomeric protein of interest from the protein aggregates. The method can be performed under neutral to high pH and high conductivity conditions.
Abstract:
In one embodiment, a removable pneumatic connector, comprises a body having a plurality of bores passing through, each bore surrounded by a sealing member on an inner surface of the body. A plurality of gas lines may be placed within a corresponding bore. A vacuum port is disposed on the inner surface of the body, and an outer seal on the inner surface of the body surrounds the sealing members and the vacuum port. A vacuum line may be placed within the vacuum port, and configured to deliver negative pressure to the vacuum port. A vacuum holding area is created in the volume between the outer seal and each of the sealing members when the inner surface of the body is placed against a substrate. When the vacuum line is activated, a vacuum is created within the vacuum holding area, creating a positive seal between the body and the substrate.
Abstract:
The present invention provides methods for cleaning a Protein A chromatography column employing a media comprising a Protein A ligand derived from the C domain of Staphylococcus aureus, such that the column can be cleaned using both acidic and alkaline solutions.
Abstract:
A valved microfluidics device, microfluidics cell-culture device and system incorporating the devices are disclosed. The valved microfluidics device includes a substrate, a microchannel through which liquid can be moved from one station to another within the device, and a pneumatic microvalve adapted to be switched between open and closed states to control the flow of fluid through a microchannel. The microvalve is formed of three flexible membranes, one of which is responsive to pneumatic pressure applied to the valve and the other two of which deform to produce a more sealable channel cross-section. The cell culture device provides valving to allow controlled loading of cells into the individual well of the device, and exchange of cell-culture components in the wells.
Abstract:
A number of novel improved microfluidic configurations and systems and methods of manufacture and operation for a microfluidic invasion assay system.
Abstract:
Systems and methods for hemodialysis or peritoneal dialysis having integrated electrodeionization capabilities are provided. In an embodiment, the dialysis system includes a carbon source, a urease source and an electrodeionization unit. The carbon source and urease source can be in the form of removable cartridges.
Abstract:
The invention concerns a device comprising a circuit comprising a bag (10) comprising two flexible films (65, 66), a press (9) comprising a first shell (16) disposed upright on a front face of a base of the device and a second shell (17) mounted on said first shell, which shells clamp said bag to form conduits (13); said press is provided with a system (170) for jamming at the location of a treatment zone (67) of the bag, which comprises a jamming member (171) provided with at least one jamming nipple (173) and a complementary jamming member (172) provided with a jamming channel (174) configured to receive said nipple; said jamming member (171) and complementary jamming member (172) and said bag (10) being configured in order for the latter to have a portion (175) in said treatment zone in which said films are jammed between said nipple and said channel.