Abstract: The present invention relates to nanofiber nonwovens comprising a network of nanofibers, which are composed of at least one nanofiber material and which enclose pores, to methods for producing nanofiber nonwovens, to the use thereof as well as to artificial tissue comprising these nanofiber nonwovens and methods for producing these artificial tissues.

Abstract: A device for reducing vibrations in a hydraulic system may have a separating device which has a side for delimiting a fluid-conducting cavity of the fluid system. The device may also have a vibration-reducing unit, which is designed to mechanically adjust the rigidity of the separating device such that vibrations in the fluid system are reduced.

Abstract: A multilayer electrode on a substrate (10) comprising titanium (20) and titanium-rich titanium nitride (30) and titanium-poor titanium nitride (40), particularly suitable for the application to thermoplastic substrates, in particular for the purpose of the impedance measurement in aqueous biological media, and method for the production thereof.

Abstract: A multilayer electrode on a substrate (10) comprising titanium (20) and titanium-rich titanium nitride (30) and titanium-poor titanium nitride (40), particularly suitable for the application to thermoplastic substrates, in particular for the purpose of the impedance measurement in aqueous biological media, and method for the production thereof.

Abstract: The invention relates to methods and means for the non-destructive characterization of biological tissue in vitro and in particular the determination of the effect of substances on said biological tissue or the determination of the maturity or degree of differentiation of said tissue, using non-invasive and in particular recurrently measurable electrical variables. These variables can be calculated, by means of a novel method, from the measured electrical impedance of the biological tissue.

Abstract: A device for transmitting or decoupling mechanical vibrations between a first component and a second component with at least one of the first and the second components being free to vibrate in the at least one direction including: a planar coupling element, coupling the first and second components together, having a planar top surface and a planar bottom surface, and having a variably adjustable stiffness extending in the at least one direction; the planar coupling element, having planar dimensions with the planar coupling element being dimensionally stable along the planar dimensions and being elastic in a direction perpendicular to the planar surfaces; the first and second components are rotatable relative to each other about an axis extending in the direction perpendicular to the planar surfaces and in which at least one of the components is free to vibrate for adjusting the stiffness.

Abstract: A shaft arrangement is disclosed for transmitting torques acting around a rotational axis, with a variably adjustable torsional stiffness acting around the rotational axis and a method for varying the torsional stiffness of a shaft arrangement. The invention includes a first shaft section, having at least one torsion element secured thereto which is not damaged by torque and is axially fixed manner, which is mounted to be dimensionally stable transverse to the rotational axis, a second shaft section spaced axially apart from the first shaft section, to which the at least one torsion element is secured which is not rotatable but is axially movable and that a means for operatively interacts or can be made to operatively interact with the second shaft section for axially moving the second shaft section in relation to the first shaft section and in relation to the at least one torsion element.

Abstract: A shaft arrangement is disclosed for transmitting torques acting around a rotational axis, with a variably adjustable torsional stiffness acting around the rotational axis and a method for varying the torsional stiffness of a shaft arrangement. The invention includes a first shaft section, having at least one torsion element secured thereto which is not damaged by torque and is axially fixed manner, which is mounted to be dimensionally stable transverse to the rotational axis, a second shaft section spaced axially apart from the first shaft section, to which the at least one torsion element is secured which is not rotatable but is axially movable and that a means for operatively interacts or can be made to operatively interact with the second shaft section for axially moving the second shaft section in relation to the first shaft section and in relation to the at least one torsion element.

Abstract: The invention is a device for transmitting or decoupling mechanical vibrations, comprising a first component and a second component, which are connected to each other by means of a coupling element that has a variably adjustable stiffness in at least one direction of action in which at least one component is supported in a vibrating manner With the coupling element by a planar element having a top side and a bottom side and extending in a longitudinal direction with the planar element being dimensionally stable in the longitudinal direction and elastic lateral to the longitudinal direction.

Abstract: This application invention discloses bioartificial proximal tubule device, constructed by preparing a decellularized biological matrix, seeding the biological matrix with mammalian kidney-derived cells and optionally mammalian endothelial cells. The device may then be cultured statically or matured using bioreactor culture to allow differentiation of the kidney cells into functioning proximal tubule cells. The device is capable of carrying out proximal tubule functions. The application also describes various methods of making the proximal tubule devices. The application also further describes methods of use of bioartificial proximal tubule devices for e.g. in vitro studies of tubule cell transport, toxicity effects of various compounds or pharmaceutical compound screening.

Abstract: Bioreactors may be used for the cultivation of cells, in particular of adherent cells, and, in particular for the cultivation and propagation of cell cultures, and utilized in methods for the cultivation of cells. A particular area of application is the use of the bioreactors in the GMP-compliant, fully automatic cultivation and propagation of cells.