A centrifuge device is provided for the sizing and separation of constituents of a biologic mixture, e.g., adipose tissue. The device provides for the mechanical breaking down of the fibrous structure in the tissue by centrifugation causing the tissue to pass through a mesh element, or a sizing helix, or an extrusion element, whereupon the material is reduced to a slurry. This processed material may then be separated by centrifugation into its constituents, in order to harvest the fraction containing the multipotent cells. These multipotent cells may be utilized for various medical procedures to stimulate healing and tissue regeneration.

The present disclosure provides a cell separation apparatus for a bioreactor, which comprises: a cell separation component, which is arranged in a tank and immersed below the liquid level of the mixture and includes a filter membrane and a liquid guiding groove; and a tangential flow driving component, which includes one or more blades. The cell separation apparatus implements a low shear force and the filter membrane is not blocked easily. The present disclosure also provides a stirring system including a central shaft and a multi-layer paddle component. The multi-layer paddle component includes an upper paddle component, an intermediate paddle component and a bottom paddle component arranged around the central shaft.

A picktool manipulator device collects a specimen from a culture medium. In a first mode of operation, a picktool is allowed to move in an axial direction relative to support structure of the device. A detector may generate a signal in response to movement of the body in the axial direction so as to determine a height at which the picktool contacts the medium. The device may operate in the first mode when collecting a specimen from a culture medium. A second mode of operation constrains or precludes axial movement of the picktool. In some cases, the device may operate in the second mode when receiving a new picktool or discarding a used picktool.

The present disclosure provides, in part, a receptacle for filtering a liquid. The receptacle comprises a plurality of hollow fibers extending the length of the receptacle and at least one solid absorbent material occupying a space between the plurality of hollow fibers. Each hollow fiber comprises at least one opening and a lumen defined by the walls thereof, allowing the liquid to flow through. The hollow fiber walls have a porosity profile selective to passage of waste materials contained in the liquid from the lumen to the solid absorbent material(s), thereby filtering the liquid. Also provided is a system as well as a method for filtering and recycling a cell culture medium.

The invention relates to a system for platelet release from a fluid comprising in particular megakaryocytic cells comprising cytoplasmic extensions.

The system allows to reproduce the pipetting process performed manually by means of a pipette, thereby permitting a continuous and automatic release of platelets.

This is performed on a large scale since the geometry of the system according to the invention allows to treat large volumes of fluid with a high flow rate (of the order of a plurality of liters per hour), thereby making it particularly suitable for use on an industrial scale.

The invention also relates to a method for platelet release from a fluid comprising in particular megakaryocytic cells comprising cytoplasmic extensions, said method being implemented by means of the abovementioned system.

A compound algae culture apparatus is provided, which includes a photobioreactor module, a growth regulating module, a circulation transfer module, and a circulation pipeline module. The photobioreactor module includes at least one photobioreactor unit, and the growth regulating module includes at least one growth tank unit. The photobioreactor unit includes a light-transmitting coiled pipe. The growth tank unit has a tank body, and a plurality of partitions are disposed in the tank body to divide an inside of the tank body for formation of a curved flow channel A culture fluid for culturing algae passes through the photobioreactor unit and enters the growth tank unit. A volume of the growth tank unit is larger than a volume of the photobioreactor unit, and a residence time of the culture fluid in the growth tank unit is greater than a residence time of the culture fluid in the photobioreactor unit.

The present invention relates to a method for separating biomolecules from a liquid medium. The method comprises adding magnetic nanoparticles to the liquid medium comprising the biomolecules, the biomolecules each adapted to bind to respective surfaces of the magnetic nanoparticles; bringing the liquid medium to which the magnetic nanoparticles have been added into contact with a collector; applying a magnetic field to the liquid medium in contact with the collector to attract the magnetic nanoparticles ound with the biomolecules to a surface of the collector; and applying an electric potential to the surface of the collector to release the biomolecules from the magnetic nanoparticles.

The present invention relates to a method for cell expansion. More closely, it relates to a method for expansion of cells, such as mesenchymal stem cells, on microcarriers in a plastic bag bioreactor. The invention enables expansion to therapeutic amounts of stem cells. The method comprises the following steps: a) addition of cells in cell culture medium and microcarriers to a plastic bag container; b) allowing the cells to adhere to the microcarriers while the container is kept substantially still; c) addition of further cell culture medium once the cells have adhered; d) culturing the cells under gentle and constant agitation; e) increase the surface area for continued culturing; and f) final harvesting of cells by an active detachment and separation step.

Novel methods and apparatus are disclosed for cell culture and cell recovery. The methods and apparatus simplify the process of cell separation from media, minimize potential damage to gas permeable devices during fluid handling, and allow closed system automated cell culture and cell recovery from gas permeable devices.

Algae harvesting and cultivating systems and methods for producing high concentrations of algae product with minimal energy. In an embodiment, a dead-end filtration system and method includes at least one tank and a plurality hollow fiber membranes positioned in the at least one tank. An algae medium is pulled through the hollow fiber membranes such that a retentate and a permeate are produced.