Abstract:
In one aspect, the disclosure provides cells and transgenic non-human mammals for the production of Fc fragments, as well as compositions and uses thereof.
Abstract:
A centrifuge partition chromatography device for separating a liquid into at least two phases, comprising at least one flat ring (3a) that can be rotationally driven around its axis, disposed in a substantially vertical position. Said ring (3a) comprises a plurality of cells (7) whose dimensions are greater in a first direction than the dimensions in a second direction which is substantially perpendicular to the first, disposed side by side and distributed along the periphery of said ring (3a) in addition to being connected to each other in a series by inlet and outlet ducts (15) terminating in the opposite respective ends of each cells (7) enabling the circulation of liquid. The invention is characterized in that said ducts (15) are disposed in such a way that the liquid supply jet penetrates the cells (7) in a direction that includes at least one radial component relative to the axis of rotation of said ring (3a).
Abstract:
Phase supports for the partition chromatography of macromolecules from non absorbing base support particles, insoluble in the phase system, with an average particulate size from 7 to 2000 mum , of which the surface is coated with an adhering material which is insoluble in the phase system and presenting an affinity for one of the phases of the phase system for the partition chromatography; their production method and their utilization for the separation by partition chromatography of macromolecules, biopolymers, subcellular units and complete cells, particularly in the polyethylene glycol-dextrane-dual phase system.
Abstract:
In one aspect, the present invention provides a chromatographic stationary phase material for various different modes of chromatography represented by Formula 1:[X](W) a (Q) b (T) c (Formula 1). X can be a high purity chromatographic core composition having a surface comprising a silica core material, metal oxide core material, an inorganic-organic hybrid material or a group of block copolymers thereof. W can be absent and/or can include hydrogen and/or can include a hydroxyl on the surface of X. Q can be a functional group that minimizes retention variation over time (drift) under chromatographic conditions utilizing low water concentrations. T can include one or more hydrophilic, polar, ionizable, and/or charged functional groups that chromatographically interact with the analyte. Additionally, b and c can be positive numbers, with the ratio 0.05 ≤ (b/c) ≤ 100, and a ≥ 0.
Abstract:
A process for separating a compound from solution in organic solvent by a chromatographic process, in particular liquid-liquid chromatography, in which prior to the chromatographic process the composition of the solution is changed by means of a process of organic solvent nanofiltration for a solvent exchange. Additionally or alternatively subsequent to the chromatographic process the output from the chromatographic process is subjected to a process of organic solvent nanofiltration to remove residual target compound and/or impurities in the output for solvent recovery.
Abstract:
This invention relates to methods of using weak partitioning chromatography for the purification of a product from a load fluid containing one or more impurities. Further, the invention relates to methods of weak partitioning chromatography defined by operating conditions which cause a medium to bind least 1 mg of product per mL of medium, or alternatively, defined by a partition coefficient of at least 0.1.
Abstract:
The present invention relates to the purification of TNFR:Fc fusion protein. More specifically related to process of purification of TNFR:Fc fusion protein wherein the HCP is reduced. The present invention is directed to the use of mixed-mode chromatography and/or affinity chromatography to produce TNFR:Fc fusion protein which is substantially free of at least one of the protein degrading enzyme present in HCP.
Abstract:
The present disclosure relates to a method of separating a compound of interest, particularly unsaturated compound(s) of interest, from a mixture. The compound is separated using a column having a chromatographic stationary phase material for various different modes of chromatography containing a first substituent and a second substituent. The first substituent minimizes compound retention variation over time under chromatographic conditions. The second substituent chromatographically and selectively retains the compound by incorporating one or more aromatic, polyaromatic, heterocyclic aromatic, or polyheterocyclic aromatic hydrocarbon groups, each group being optionally substituted with an aliphatic group.
Abstract:
The present invention provides a chromatographic stationary phase material various different types of chromatography. One example chromatographic stationary phase is represented by Formula 1 [X](W) a (Q) b (T) c (Formula 1). X can be a high purity chromatographic core composition. W can be absent and/or can include hydrogen and/or can include hydroxyl on the surface of X. Q can be bound directly to X and can include a first hydrophilic, polar, ionizable, and/or charged functional group that chromatographically interacts with the analyte. T can be bound directly to X and can include a second hydrophilic, polar, ionizable, and/or charged functional group that chromatographically interacts with the analyte. Additionally, Q and T can essentially eliminate chromatographic interaction between the analyte, and X and W, thereby minimizing retention variation over time (drift or change) under chromatographic conditions utilizing low water concentrations.