Millipore | Date: 2017-01-31
The present invention is an integral multilayered composite membrane having at least one ultrafiltration layer made by cocasting or sequentially casting a plurality of polymer solutions onto a support to form a multilayered liquid sheet and immersing the sheet into a liquid coagulation bath to effect phase separation and form a multilayered composite membrane having at least one ultrafiltration layer.
Millipore | Date: 2017-07-05
A method of filtering a liquid feed is described, comprising passing a liquid feed through a single pass tangential flow filtration (SPTFF) system and recovering the retentate and permeate from the system in separate containers. A method of filtering a liquid feed is also described comprising passing a liquid feed through a tangential flow filtration (TFF) system, recovering permeate and a portion of the retentate from the system in separate containers without recirculation through the TFF system, and recirculating the remainder of the retentate through the TFF system at least once. The methods of the invention can be performed using an SPTFF or a TFF system that comprises manifold segments to serialize the flow path of the feed and retentate without requiring diverter plates.
Millipore | Date: 2017-07-12
Chromatography media including a high surface area thermoplastic porous nanofiber and an ion-exchange ligand functionality on the surface of the fiber. The porous nanofibers display a convoluted structure that is comprised of discrete bundles of highly entangled nanofibrils that may be fibrillated or ridged. The porous fibers can be prepared through the extraction of a dissolvable mineral or polymeric porogen that is embedded into the fiber during its manufacture in a melt extrusion process.
Millipore | Date: 2017-05-31
A number of novel improved microfluidic configurations and systems and methods of manufacture and operation. In one embodiment, three wells are used for independent cell culture systems in a cell culture array. In a second aspect, artificial sinusoids with artificial epithelial barriers are provided with just one (optionally shared or multiplexed) fluidic inlet and one (optionally shared or multiplexed) fluidic output, where the medium output also functions as a cellular input. A pneumatic cell loader combined with other components provides a fully automated cell culture system. Magnetic alignment of plate molds provides advantages and ease of molded manufacture.
Millipore | Date: 2017-02-15
The present invention relates to improved processes and systems for purification of biological molecules, where the processes can be performed in a continuous manner.
Millipore | Date: 2017-02-01
The present invention provides for a method of producing an integral multilayered porous membrane by simultaneously co-casting a plurality of polymer solutions onto a support to form a multilayered liquid sheet and immersing the sheet into a liquid coagulation bath to effect phase separation and form a porous membrane. The support can be a temporary support or form an integrated support for the membrane. The plurality of layers may be of the same polymer or different, same concentration or viscosity or different and may be subjected to the same processing conditions or different ones to form unique structures.
Millipore | Date: 2016-11-15
A laminate is provided comprising at least one polysulfone and/or polyethersulfone porous membrane heat bonded to a polyvinylidene fluoride substrate.
Millipore | Date: 2017-05-03
A fluid filtration device containing a composite filter media having a coarse porous polymeric nonwoven interlayer located between first and second polymeric fiber containing filter mats. The fiber diameters of the fibers in the first and second filter mats are different from each other, and each filter mat has a different pore size rating. The first and second polymeric fibers in the filter mats can be electrospun nanofibers. The interlayer has a coarser pore size when compared to the either the first or second filter mats, such that the resulting composite media has an increased dirt holding capacity compared to filter layers that are layered directly over each other without the presence of a coarse interlayer therebetween.
Millipore | Date: 2017-03-02
A method for removing retroviruses from liquid samples and a nanofiber containing liquid filtration medium that simultaneously exhibits high liquid permeability and high microorganism retention is disclosed. Retroviruses are removed from a liquid by passing the liquid through a porous nanofiber containing filtration medium having a retrovirus LRV greater than about 6, and the nanofiber(s) has a diameter from about 10 nm to about 100 nm. The filtration medium can be in the form of a fibrous electrospun polymeric nanofiber liquid filtration medium mat.
Agency: European Commission | Branch: H2020 | Program: IA | Phase: BIOTEC-4-2014 | Award Amount: 10.57M | Year: 2015
The scope of the project is the optimization of downstream process (DSP) for the production of Biopharmaceuticals. Biopharmaceuticals have been successfully used as efficient therapeutic drugs for many pathophysiological conditions since the first recombinant product, insulin, was approved in 1982. Despite its efficacy, accessibility is still limited due to extremely high costs. In the production chain, capturing and purifying still represents a major bottleneck. Consequently, improvements in this area produce substantial cost reductions and expand patients accessibility to highly efficient drugs. Another aim of this action is to cope with the changing manufacturing demands, by lowering its environmental footprint and moving to more sustainable technologies. This proposals main objective is to implement a fully integrated manufacturing platform based on continuous chromatography in combination with disposable techniques for all unit operations of the DSP sequence for biosimilar monoclonal antibodies and derivatives thereof. The action encompasses the entire DSP sequence. We will implement alternative technologies for primary separation, such as flocculation or tangential flow filtration. The expected outcome is a reduction in the size and number of downstream unit operations and the elimination of centrifugation. Alternative approaches to the batch process for the capture step, such as continuous chromatography, will be evaluated in order to improve the efficiency and lower the need for expensive resin volume. Additionally precipitation utilization will be evaluated as an approach to replace protein A chromatography as capture step. A disposable continuous chromatography system will be developed together with novel analytical tools and sensors. Since single-use disposable systems can substitute the extensive use of resources (water) and significantly reduce the overall utility needs, the whole DSP sequence will be carried out on disposable technology (PAT).