摘要:
A filtration cell (10) for a biological sample having an outer housing (12) defining a first chamber and an inner housing (14) defining a second chamber is disclosed. The inner housing is disposed within the first chamber and rotatable with respect to the outer housing and at least a portion of the inner housing includes a filtration membrane (52). Upon rotation of the inner housing, a first portion of the biological sample passes from the first chamber into the second chamber and a second portion of the biological sample is restrained in the first chamber. Alternatively, the filtration cell may also include a rotation element disposed in the inner housing. Upon rotation of the rotation element with respect to the inner housing, a first portion of the biological sample to passes from the second chamber into the first chamber and a second portion of the biological sample is restrained in the second chamber.
摘要:
A disposable blood transfer conduit is used in association with a pump drive unit, a blood collection vessel and a blood concentration device. The blood transfer conduit comprises a blood transfer tube (13) and a peristaltic pump element (12) having an enclosed housing mounted about the blood transfer tube (12). At least part of the blood transfer tube (13) is resiliently deformable and extends through the enclosed housing of the peristaltic pump element (12). The disposable blood transfer conduit may be used in the concentration of blood for autologous blood transfusion.
摘要:
A method for making a nanoporous membrane is disclosed. The method provides a composite film comprising an atomically thin material layer and a polymer layer, and then bombarding the composite film with energetic particles to form a plurality of pores through at least the atomically thin material layer. The nanoporous membrane also has a atomically thin material layer with a plurality of apertures therethrough and a polymer film layer adjacent one side of the graphene layer. The polymer film layer has a plurality of enlarged pores therethrough, which are aligned with the plurality of apertures. All of the enlarged pores may be concentrically aligned with all the apertures. In one embodiment the atomically thin material layer is graphene.
摘要:
Hierarchical porous membranes suitable for use in oil/water separation processes are provided. The membranes described herein are particularly well suited for separating trace amounts of water (e.g., no greater than 3 wt% water content, no greater than 1 wt% water content, or 50-1000 ppm water) from oil. The membranes have a wide range of applications, including deep seep oil exploration, oil purification, and oil spill cleanup.
摘要:
Die Erfindung betrifft eine Anordnung und ein Verfahren zur Filtration, welche insbeondere zur Filtration von Zellen, z.B. Tumorzellen, aus einer Probe, z.B. einer Blutprobe, geeignet sind. Dabei wird eine Druckdifferenz des Drucks stromaufwärts und stromabwärts von einem Filter ermittelt; und die Druckdifferenz stromaufwärts gegenüber stromabwärts von dem Filter eingestellt, so dass die Druckdifferenz einen vorbestimmten Wert nicht überschreitet.
摘要:
The present invention relates to a self-standing membrane made of metal oxide particles and polycarbonate. Said membrane combines the surface properties of porous colloidal metal oxide packings with the mechanical stability and flexibility of polycarbonate. The resulting porous film presents enhanced diffusion properties and, besides, the possibilityto design its optical response. The combination of metal oxide particles, of different and controlled size, and polycarbonate allows tailoring to measure the optical properties of the membrane in order to obtain from transparent to coloured or opaquefilms. On another side of this invention, the metal oxide particles of said hybrid membranes can be etched yielding an even more porous membrane. Furthermore, said porous films can be functionalised at different stages in the preparation wherebythe hybrid polycarbonate metal oxide film can be functionalised with active moieties, or the final polycarbonate film can be functionalised.
摘要:
L'invention concerne un procédé de séparation par membrane permettant de séparer des hydrocarbures linéaires d'hydrocarbures branchés. La membrane mise en œuvre comprend une couche sélective dense constituée d'un polymère dont la structure chimique contient au moins un groupement bis-phényl-9,9-fluorène.
摘要:
A membrane microfilter is formed by ablative drilling of an array of pores through a polycarbonate film (14) using an ultraviolet or visible light laser. Pulses of radiation from the laser (2) are formed into beams (22) of less than pore size using a lens system (12) or mask (20), the intensity of the beams (22) being sufficient to cause ablation of the film (14).
摘要:
A membrane can contain at least one substrate layer, wherein the substrate layer includes a plurality of substrate pores, and each of the substrate pores contains a plurality of nanotubes or nanowires positioned within the substrate pore. Such membranes can be incorporated into enclosures for various substances. The enclosures can be exposed to an environment, such as a biological environment ( in vivo or in vitro ), where the membrane can delay or not provoke an immune response from the environment. One or more substances within the enclosure can be released into the environment, one or more selected substances from the environment can enter the enclosure, one or more selected substances from the environment can be prevented from entering the enclosure, one or more selected substances can be retained within the enclosure, or combinations thereof. The enclosure can, for example, allow a sense-response paradigm to be realized.
摘要:
The invention relates to a gas in/outlet-adapter system for a container/rack assembly for a diagnostic robot comprising: - a receptacle (15) comprising a gas-inlet wherein the receptacle (15) is attached to a container (12), - a nozzle (16) comprising a gas-outlet wherein the nozzle (16) is attached to a rack to supply the container (12) via the receptacle (15) with a gas at a defined pressure level, wherein the receptacle (12) - provides one opening (24) - which provides for a fluidic contact to the interior of the container (12) - and a second opening (25) - which provides for a gas leak-proof connection to the nozzle (16) on the rack when the receptacle (15) is placed over the nozzle (16), and wherein the nozzle (16) - provides one opening (26) - which provides for a fluidic contact to a tubing system of the rack - and a second opening (27) - which provides for a fluidic contact to the nozzle (16) when the receptacle (15) is placed to cover the nozzle (15).