Entries |
Document | Title | Date |
20100006479 | METHOD AND APPARATUS FOR SORTING PARTICLES USING ASYMMETRICAL PARTICLE SHIFTING - An apparatus and method disperse particles suspended in a fluid with an obstacle field in the flow path of the fluid. The particles may be dispersed after an interaction with obstacles in the obstacle field. The obstacle-particle interactions may result in an asymmetrical particle shift in which the particles are dispersed in an asymmetrical manner relative to the obstacle and the fluid flow. The obstacle field may have a configuration that causes the particles suspended in the fluid to disperse in a differential manner in a direction perpendicular to the fluid flow. | 01-14-2010 |
20100032349 | MICRO-FLUIDIC CHIP, MICRO-PARTICLE SORTING DEVICE AND FLOW CONTROLLING METHOD - A micro-fluidic chip including a channel through which a liquid containing micro-particles flows, and a gas jetting section configured to jet a gas toward the micro-particle-containing liquid ejected from the channel is provided. | 02-11-2010 |
20100300942 | Microfluidic device for separation of particles - An apparatus for separating particles includes a first planar wall and a spaced apart second planar wall parallel to the first planar wall. The first planar wall and the second planar wall define a passage therebetween, which is disposed along a fluid flow axis. A first plurality of spaced apart elongated ridges extends into the passage from the first planar wall. The first plurality of spaced apart elongated ridges is disposed along a diagonal direction relative to the fluid flow axis. When a fluid is moved through the passage in a direction corresponding to the fluid flow axis, particles of a first type will tend to move in a first direction that is diagonally away from the fluid flow axis and particles of a second type, different from the first type, will tend to move in a second direction that is different from the first direction. | 12-02-2010 |
20100326891 | SEPARATION OF CARBON NANOTUBE BUNDLES VIA INTERFACIAL TRAPPING - In embodiments of the invention, bundles of carbon nanotubes are separated from individual nanotubes via interfacial trapping of bundled carbon nanotube bundles at an emulsion interface between suspension-phase and a solution-phase. The separation method comprises dispersing a mixture of individual and bundled carbon nanotubes in a solution comprising surfactant; adding at least one solvent to the surfactant solution to form a two-phase mixture; agitating the two-phase mixture to form an emulsion interface between the solution-phase and a suspension-phase, where nanotube bundles selectively segregate to the emulsion interface. Single-walled carbon nanotube suspensions exhibit strong fluorescence, which can be used to assess the degree of separation and determine if a repeated extraction of any remaining bundled carbon nanotubes remaining in the suspension-phase is desired. In another embodiment of the invention, separation of carbon nanotubes by type is carried out by interfacial trapping. | 12-30-2010 |
20110163013 | Apparatus and Method for Moving Particles in a Fluid - The invention relates to an apparatus, in particular for moving particles in a fluid at Reynolds numbers larger than 0.5, which comprises a container section adapted to hold said fluid, and which is adapted to perform a displacement process, which includes a number of repeated displacements of said container section, comprises at least one actuating device, which is adapted to perform said displacements, at least one connecting means, which connects said container section to said actuating device, said displacement comprising a first motion of said container section from a first position to a second position and a second motion of said container section from said second position back to said first position, wherein during said first motion said container section is at least temporarily moved with a first velocity, and wherein during said second motion said container section is at least temporarily moved with a second velocity, which is different from said first velocity, and wherein by means of said displacement process, a force is acting upon said particles in the fluid, which is capable of inducing a directed motion of said particles in relation to said container section, wherein said first and second velocity of said container section control, i.e. influence or determine, said motion of the particles. The invention further relates to a method for in particular moving particles in a fluid at Reynolds numbers larger than 0.5. | 07-07-2011 |
20110174697 | MULTIPLE FLAT DISC TYPE PUMP AND HYDROCYCLONE - A separator for separating a first component and a second component from within a mixed fluid includes a plurality of discs, a separator chamber, and a disc rotator. The discs are spaced apart along a disc axis The separator chamber encircles the plurality of discs. The disc rotator rotates the plurality of discs about the disc axis relative to the separator chamber. The separator chamber includes a chamber inlet that receives the mixed fluid, a first outlet, and a second outlet. The disc rotator rotates the plurality of discs about the disc axis so that the mixed fluid is spun around the separator chamber about the disc axis to separate the heavier second component from the first component. The first component is directed out of the separator through the first outlet and the second component is directed out of separator through the second outlet. | 07-21-2011 |
20120067788 | SEPARATING DEVICE AND METHOD - A plate type rotational centrifugal separator for separating one or more components of a feed stream includes a rotatable first outer carrier and a rotatable second inner carrier coaxially arranged in the first outer carrier. The first outer carrier supports one or more curved plates which are flexibly connected to the second inner carrier. Feeding means disposed at one end of the separator supply a feed stream to be separated, and discharging means disposed at the opposite end of the separator discharge separated streams. Confined spaces are defined between adjacent curved plates and the first outer and second inner carrier for separating the feed stream under influence of centrifugal forces. The first outer carrier is axially removable from the second inner carrier for removing components collected on the plates. | 03-22-2012 |
20140374324 | MICROFLUIDIC METHODS FOR PASSIVE SEPARATION OF CELLS AND PARTICLES - A method of separating a plurality of particles ( | 12-25-2014 |