Abstract:
A multi-stage TFF apparatus, comprising a bioreactor capable of holding cell culture media; a first stage TFF device in fluid communication with the bioreactor; a storage tank in fluid communication with the first stage TFF device; a first recirculating loop in fluid communication with the first stage TFF device and the bioreactor; a second stage TFF device, in fluid communication with and downstream from the storage tank; and a second recirculating loop in fluid communication with the second stage TFF device and the storage tank.
Abstract:
The present invention relates to novel and improved methods for the purification of biomolecules. In particular, the present invention relates to methods of protein purification which employ small molecules, which include al least one non- polar group and at least one cationic group or which include at least one non-polar group and at least one anionic group.
Abstract:
Filter elements (20, 100) for perfusion systems and methods are provided. A filter element sheet includes a microporous membrane (63, 112) having a mean pore size of at least about 0.65µm and a feed spacer (25, 120) comprising woven fibers and having an open area of at least about 35%. The filter element sheet can be arranged within a filter element, for example, in a spiral-wound format or in a cassette format. A perfusion system includes at least one filter element and a pump configured to control flow of a liquid feed through the at least one filter element.
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 present invention relates to novel and improved methods for the purification of biomolecules. In particular, the present invention relates to methods of protein purification which employ small molecules, which include al least one non- polar group and at least one cationic group or which include at least one non-polar group and at least one anionic group.