Depth filters for disposable biotechnological processes

    公开(公告)号:US11504646B2

    公开(公告)日:2022-11-22

    申请号:US17008690

    申请日:2020-09-01

    Abstract: A process for the primary clarification of feeds, including chemically treated flocculated feeds, containing the target biomolecules of interest such as mAbs, mammalian cell cultures, or bacterial cell cultures, using a primary clarification depth filtration device without the use of a primary clarification centrifugation step or a primary clarification tangential flow microfiltration step. The primary clarification depth filtration device contains a porous depth filter having graded porous layers of varying pore ratings. The primary clarification depth filtration device filters fluid feeds, including chemically treated flocculated feeds containing flocculated cellular debris and colloidal particulates having a particle size distribution of approximately about 0.5 μm to 200 μm, at a flow rate of about 10 litres/m2/hr to about 100 litres/m2/hr. Kits and methods of using and making the same are also provided.

    High capacity composite depth filter media with low extractables

    公开(公告)号:US11439933B2

    公开(公告)日:2022-09-13

    申请号:US16720102

    申请日:2019-12-19

    Abstract: A depth filtration device for the clarification of biological fluids including a composite depth filter media having a nonwoven first layer integral with a second layer containing a polyacrylonitrile (PAN) fibers, a filter aid, and a wet-strength resin. The depth filter media exhibits increased binding capacity for soluble impurities such as DNA and host cell proteins from biological/cell culture feedstreams during secondary clarification and low-level impurity clearance of harvested cell culture fluids, such as those used for the manufacture of monoclonal antibodies. The depth filter media additionally exhibits significantly lower flushing requirements, resulting in lower levels of organic, inorganic and bioburden extractables released, high dirt holding capacities and good chemical and/or radiation resistance.

    ZERO DEAD LEG VALVE
    207.
    发明申请

    公开(公告)号:US20220186841A1

    公开(公告)日:2022-06-16

    申请号:US17438244

    申请日:2020-06-17

    Inventor: Brian Pereira

    Abstract: A valve having a body having a first section and a second section; an extended flange attached to the second section of the body or disposed as an integral part of the second section of the body; an elongate bore extending through the body and having a proximal end and a distal end; a longitudinally displaceable plunger disposed in and extending along the bore, the plunger having a proximal end and a distal end and having a first position displaced toward the distal end of the bore and a second position displaced toward the proximal end of the bore; a diaphragm seal attached to the proximal end of the plunger and sealing the bore at the proximal end thereof; a gland seal sealing the bore at a location intermediate the diaphragm seal and the distal end of the bore; the plunger extending through and being sealingly secured to the gland seal; a fluid transfer opening in the bore between the diaphragm seal and the gland seal; longitudinal displacement of the plunger moving the diaphragm seal to open the bore, the gland seal stretching to accommodate the displacement of and maintain a seal about the plunger, a fluid flow path being established between the open proximal end of the bore and the fluid transfer opening, wherein longitudinal displacement of the plunger towards its first position moves the diaphragm to open the bore. The valve further comprises an extended flange having a surface that is approximately coplanar with a surface of the second position when the plunger is displaced toward the proximal end of the bore, creating a zero dead leg position

    FLUID TRANSFER SYSTEM FOR ISOLATORS
    208.
    发明申请

    公开(公告)号:US20220184599A1

    公开(公告)日:2022-06-16

    申请号:US17609008

    申请日:2020-08-06

    Abstract: An apparatus for use with an isolator, including a crown for releasably joining with a beta port of the isolator, wherein the crown includes at least one anchoring support; a spring hook on at least one end of the at least one anchoring support; a needle block including at least one through hole for having a needle positioned therein, wherein the at least one needle is joined with tubing; a yoke; and a biasing element releasably joined with the yoke and the at least one anchoring support; wherein the needle block is releasably joined to the crown.

    Method Of Synthesizing Chemical Compounds

    公开(公告)号:US20220148686A1

    公开(公告)日:2022-05-12

    申请号:US16772293

    申请日:2019-07-30

    Abstract: A system, software application and method that allows a customer to protect their proprietary database of compounds and substances while utilizing a retrosynthesis software application is disclosed. The customer's proprietary database is encrypted prior to being provided to the retrosynthesis system. This encrypted is performed using a hash and optionally a salt. The retrosynthesis algorithm then creates synthons as is traditionally done. However, after their creation, the synthons are hashed so that they may be compared to the entries in the customer's proprietary database. In this way, the actual contents of the customer's database are never made available to the retrosynthesis system or software application.

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