Abstract:
The present invention describes a spatial addressing technique that uses a very high-density micro-pore array for high-throughput screening of biological interactions. The therapeutic, diagnostic and drug-discovery implications of being able to identify, select and characterize specific protein-protein, protein-DNA and/or protein-carbohydrate interactions from heterogeneous populations of millions (to billions) of cells is discussed. Importantly, this technique possesses the screening and selection capacity of current display-based screening systems (i.e. millions-billions) but with greater efficiency and shorter time.
Abstract:
A device for blood-plasma separation and plasma-based blood analysis is described. The device uses blood samples smaller than 5 μL (directly from the finger) and flow is achieved with a degassing-driven flow technique that causes blood to flow spontaneously into air-filled dead-end channels without external pumping mechanisms.
Abstract:
A sequential flow analysis tool comprising a microti iridic device having a fluid path defined within a substrate between an input and an output is described. The device includes a capture chamber provided within but offset from the fluid path, the capture chamber extending into the substrate in a direction substantially perpendicular to the fluid path such that operably particles provided within a fluid flowing within the fluid path will preferentially collect within the capture chamber.
Abstract:
The formation of a barrier layer within individual channels or cavities of a microfluidic device is described. The barrier layer is effected through a gas phase deposition process, desirably implemented in a plasma environment.
Abstract:
A sequential flow analysis tool comprising a microti iridic device having a fluid path defined within a substrate between an input and an output is described. The device includes a capture chamber provided within but offset from the fluid path, the capture chamber extending into the substrate in a direction substantially perpendicular to the fluid path such that operably particles provided within a fluid flowing within the fluid path will preferentially collect within the capture chamber.
Abstract:
The gear is intended for use in toothed reduction gear systems in machine tool transmissions and other machinery. It is characterized by the fact that assembly slots (13, 30) are provided in apertures in partitions in the housing (1, 20) below the radial roller bearing with two flanges on the outer ring (8, 16, 29) of the intermediate shaft-pinions (6, 15, 24). Thanks to this arrangement, subassemblies put together outside the housing can be mounted in the one-piece housings (1, 20, 35); those subassemblies comprise the intermediate shaft-pinions (6, 15, 24), the toothed wheels (5, 7, 25) and the inner rings of the roller bearings (8, 16, 29) in the following construction: multi-stage, single-flow gears; gears with stages divided between two symmetrically configured pairs of spiral gear wheels whose teeth are inclined at opposing angles; multi-flow gears in which the assembly slots (30) are formed by machining a cylindrical surface (31) in the one-piece housing (in the two-stage gears the said surface is machined on the outer partition (20) of the housing, in the four-stage gears on the intermediate partition (36) of the housing). The four-stage multi-flow gears consist of two two-stage gears connected by a shaft-pinion (37) running without any radial support through the intermediate partition (36) of the one-piece housing (35).