Abstract:
A dielectrophoretic device and method is described for manipulating one or more particles, e.g. living cells. The device comprises a plurality of electrodes in the form of a DEP cage, and a particle movement detection system for detecting movement of the one or more particles within the cage. Particle movement is indicative of passing through the cross-over frequency. The particle movement detection system includes a particle presence sensor and this can be located eccentrically with respect to a trapping point of the DEP cage. The device and method may be used for classification, identification, of quantification of diseased versus healthy cells, for diagnosis, for medical research and development and in therapy. They are particularly useful for investigating living cells whose cell membrane alters in conductivity or permeability.
Abstract:
In order to obtain an appropriate coupling in a optical sensing system (100) for sensing particle properties of particles (111) in a sample fluid (117) using frustrated total internal reflection, the cartridge (110) and/or the optical catridge reader (130) is provided with an integrated means (150) that assists in providing an optical coupling. The integrated means (150) may for example be adapted for providing an optical coupling material (152) in the gap between the cartridge (110) and the optical cartridge reader (130), for generating a low pressure or vacuum or for generating a pressure on the cartridge (110) so that a light receiving surface (114) of the cartridge (110) is pressed to an optical component (132) of the reader (130). The latter may allow the use offlat cartridges (110) as the optical component (132) for guiding the light appropriately for having frustrated total internal reflection may be present in the reader (130) rather than being part of the cartridge (110).
Abstract:
The invention relates to microfluidic system (100), particularly a biosensor, for manipulating a sample in a sample chamber (1). The device comprises at least one actuator (10) that reversibly changes its spatial configuration if it is heated and/or cooled. The actuator (10) may particularly be arranged adjacent to an associated heating element (20) of a 5 heating array that is used to establish a predetermined spatial and/or temporal temperature profile in the sample chamber (1). The configuration change of the actuator (10) can be used to move the sample fluid or to control its passage through fluid channels. A plurality of actuators (10) may optionally be provided that undergo their configuration changes at different temperatures, particularly temperatures within a range that is passed during a 10 reaction like PCR.
Abstract:
A micro-fluidic device (1) including a two-dimensional array of a plurality of components (2) for processing a fluid and/or for sensing properties of the fluid is suggested. Each component (2) is coupled to at least one control terminal (9,10) enabling an active matrix to change the state of each component individually. The components comprise at least one heater element (13). The active matrix includes a two-dimensional array of electronic components (12) realized in thin film technology. The active matrix provides a high versatility of the device. The thin film technology ensures a very cost efficient manufacturing also of large devices. In the micro-fluidic device the fluid flow can be detected.
Abstract:
The invention relates to an electric based micro-fluidic device using active matrix principle, for the use in medical and health and wellness products, in particular biochips or bio-systems. An electric based micro-fluidic device using active matrix principle, for the use in medical and health and wellness products, in particular biochips or bio-systems, wherein an 2-dimensional matrix array of poly MEMS actuators (PMA) (1) is arranged in a 2-dimenional system in which each single actuator is electrically/electronically steered independently from each other, in order to be able to generate a pattern of activation in the matrix.
Abstract:
A display device and a method for driving the display device is disclosed. The display device comprises drive circuitry (35) and a plurality of pixels (PIXl, PIX2, PIX3, PIX4, PIX5, PIX6) having movable charged particles (116). The drive circuitry is configured to apply control signals to the pixels to move the charged particles between first (110) and second (112) regions of each pixel in order to alter the optical appearance of each pixel. The method for each pixel comprises a pre-addressing stage (PRA) of moving the charged particles towards the boundary (114) between the first and second regions, and then an addressing stage (ADD) of moving the particles to one side or the other side of the boundary, in dependence on the desired optical appearance of the pixel.
Abstract:
The Invention concerns to a micro-fluidic device for the use in biochip or bio- system, wherein an 2 dimensional matrix array of temperature sensitive po Iy-MEM actuators (1) is arranged in a 2 dimensional thermal processing array, in which each single temperature control element (6) or thermal element can be steered independently from each other, in order to be able to activate each single poly-MEM actuator (1).
Abstract:
The invention relates to an electric based micro-fluidic device using active matrix principle, for the use in medical and health and wellness products, in particular biochips or bio-systems. An electric based micro-fluidic device using active matrix principle, for the use in medical and health and wellness products, in particular biochips or bio-systems, wherein an 2-dimensional matrix array of poly MEMS actuators (PMA) (1) is arranged in a 2-dimenional system in which each single actuator is electrically/electronically steered independently from each other, in order to be able to generate a pattern of activation in the matrix.
Abstract:
An electronic paint for an electrophoretic display includes a lower conductive layer, a thermal addressing layer disposed on the lower conductive layer, a layer of electrophoretic ink disposed on the thermal addressing layer, and an upper conductive layer disposed on the electrophoretic ink. Activation of the electrophoretic ink is based on thermal absorption of thermal radiation in a portion of the thermal addressing layer and a bias voltage applied between the upper conductive layer and the lower conductive layer.
Abstract:
Display apparatus with a display area (2) having a plurality of pixels (9), a mixing unit (3) for preparing a predetermined quantity of color material for one of the plurality of pixels (9), and a transfer unit (4) for transferring the predetermined quantity for a pixel (9) to the associated pixel position in the display area (2). The transfer of color material can be based on an electro-wetting mechanism, an electrophoresis mechanism or a pumping mechanism.