Abstract: The invention comprises a membrane and device and method for removing proteases from fluids, particularly from biological fluids and pharmaceutical solutions, which uses a microporous membrane body, whereby inhibitors that selectively bind proteases are coupled to the membrane body by chemically activated groups.

Abstract: The invention comprises a membrane and device and method for removing proteases from fluids, particularly from biological fluids and pharmaceutical solutions, which uses a microporous membrane body, whereby inhibitors that selectively bind proteases are coupled to the membrane body by chemically activated groups.

Abstract: There is provided a cellulose hydrate membrane having a porous double structure which consists of micropores having a diameter in the range from >100 nm to 20 ?m and ultrapores which have a diameter of <100 nm and which are not accessible to Blue Dextran having an average molecular weight Mw of 2 000 000, wherein the fraction of the volume of the ultrapores is more than 15% of the entire pore volume accessible to water. In addition, a method for producing the membrane, its use as an adsorption membrane, and an apparatus for membrane chromatography are specified.

Abstract: There is disclosed a process for the production of cellulose hydrate ultrafiltration membranes having improved filtration performance and the ultrafiltration membranes produced by the process.

Abstract: The present invention relates to a process which can be carried out continuously for the adsorption separation of substances in liquid media, in which process a flat adsorbent is loaded with an adsorbate by contacting the adsorbate-containing medium with the entire adsorbing outer surface of the adsorbent without forced flow through, and to an apparatus for carrying out the inventive process.

Abstract: The present invention relates to adsorption membranes comprising microporous polymer membranes in which adsorbent particles are incorporated. Furthermore, the present invention relates to a method of producing the inventive adsorption membranes as well as devices which comprise the inventive adsorption membranes.

Abstract: The invention comprises a membrane and device and method for removing proteases from fluids, particularly from biological fluids and pharmaceutical solutions, which uses a microporous membrane body, whereby inhibitors that selectively bind proteases are coupled to the membrane body by chemically activated groups.

Abstract: There is disclosed a process for the production of cellulose hydrate ultrafiltration membranes having improved filtration performance and the ultrafiltration membranes produced by the process.

Abstract: The invention comprises a membrane and device and method for removing proteases from fluids, particularly from biological fluids and pharmaceutical solutions, which uses a microporous membrane body, whereby inhibitors that selectively bind proteases are coupled to the membrane body by chemically activated groups.

Abstract: The invention describes a membrane and a method of making and using the same, the membrane being made from a microporous membrane body with an affinity ligand capable of interacting with at least one type of biomolecule found in a fluid, whereby the membrane body may be stored in a dried state yet retain the activity of the affinity ligand.

Abstract: There is disclosed a device for the simultaneous separation of particles and target substances from liquid feeds by adsorption membranes having particle-passing apertures therein.

Abstract: The present invention relates to adsorption membranes comprising microporous polymer membranes in which adsorbent particles are incorporated. Furthermore, the present invention relates to a method of producing the inventive adsorption membranes as well as devices which comprise the inventive adsorption membranes.

Abstract: The present invention relates to a process which can be carried out continuously for the adsorption separation of substances in liquid media, in which process a flat adsorbent is loaded with an adsorbate by contacting the adsorbate-containing medium with the entire adsorbing outer surface of the adsorbent without forced flow through, and to an apparatus for carrying out the inventive process.

Abstract: A method of conducting a rapid microbiological assay of gases is disclosed that utilizes an improved gelatin membrane filter that is pre-filtered before casting to remove microscopic-sized particles.

Abstract: The abstract discloses a method for preparing supports for the assay of chemical or biological substances, consisting in preparing N different supports, each being homogeneous for a type of reaction, then in mutually combining, according to a predetermined arrangement, all or part of the said homogenous N supports to constitute assay supports having each an ordered set of reaction zones of N different types or less. The invention also concerns the assay supports prepared by this method and their use in processes of immunological hybridisation assays.

Abstract: An adsorptive separation device is disclosed having at least one spiral wound adsorption membrane situated around the periphery of a core mandrel wherein the flow is radial from a feed plenum situated between the core mandrel and the membrane, through the membrane to a permeate plenum located between the membrane and a housing for both the core mandrel and the spiral wound membrane. An array of such separation devices is also disclosed showing connections in parallel, in series, in both parallel and in series and in tandem.

Abstract: Adsorptive separation is performed on liquid media by directing the media containing a target substance through an adsorber stage A whereby the target substance is adsorbed; in the last phase of loading stage A and prior to breakthrough of the target substance in the stage A permeate, the stage A permeate is directed to a second adsorber stage B. Upon completion of the stage A loading, the target substance from stage A is eluted with buffer solution, which buffer solution is introduced to stage B, and liquid medium is directed to the preloaded stage A, while stage A is eluted so as both recover the target substance and regenerate the adsorptive capacity of stage A.

Abstract: Devices suitable for adsorptive separation, filtration or catalytic conversion of liquid media are disclosed that have ideal dimensions for efficient performance. A method for dimensioning such devices is also disclosed.

Abstract: There is disclosed a membrane process for the purification of nucleic acids in aqueous solutions whereby a lasting reduction of endotoxin content is achieved. The process is suitable for small or large volumes and can be carried out quickly and with simple apparatus.

Abstract: A filtration unit for the separation of substances from liquids utilizes a rotatable cylindrical module with a permeable wall disposed within a housing. A filter element which has at least one band of microporous membrane adsorber having a specific adsorption affinity for the substances to be separated is disposed within the cylindrical module so that the membrane absorber is abutted to the cylindrical module. The filter element encircles the feed inlet and can be in the form of an endless loop. A permeate plenum lies between the cylindrical module and the housing. The cylindrical module includes a liquid impermeable end cap which is provided with a coupling member adapted for connection to a drive of variable rotational speed.