Abstract:
PROBLEM TO BE SOLVED: To provide a method, apparatus, and system for separating blood and other types of cellular components.SOLUTION: One of the exemplary methods includes: providing a first flow having a plurality of blood components; providing a second flow; contacting the first flow with the second flow to provide a first separation region; and differentially sedimenting a first blood cellular component of the plurality of blood components into the second flow while concurrently maintaining a second blood cellular component of the plurality of blood components in the first flow. The second flow having the first blood cellular component is then differentially removed from the first flow having the second blood cellular component. Holographic optical traps 200 may also be utilized in conjunction with the various flows to move selected components from one flow to another, as part of or in addition to a separation stage.
Abstract:
PROBLEM TO BE SOLVED: To provide a method, apparatus and system for separating blood and other types of cellular components, and which can be combined with holographic optical trapping manipulation or other forms of optical tweezing. SOLUTION: One of the exemplary methods includes: providing a first flow having a plurality of blood components; providing a second flow; contacting the first flow with the second flow to provide a first separation region; and differentially sedimenting a first blood cellular component of the plurality of blood components into the second flow while concurrently maintaining a second blood cellular component of the plurality of blood components in the first flow. The second flow having the first blood cellular component is then differentially removed from the first flow having the second blood cellular component. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
Apparatus for sorting and orienting sperm cells has a pair or walls (314, 316) in confronting relationship forming a flow chamber (312) having an inlet, a downstream outlet, and intermediate detector region (338). The inlet receives first and second spaced apart streams of input fluid and a third stream of sample fluid (328) containing the cells (330) to be sorted. The first and second streams have respective flow rates relative to the third stream, such that the third stream is constricted forming a relatively narrow sample stream, so that the cells (330) are oriented parallel to the walls (314, 316). A detector (340) detects desired cells (330) and a sorter (356) downstream of the detector (340) sorts the desired cells (330) from the stream.
Abstract:
Apparatus for sorting and orienting sperm cells has a pair or walls (314, 316) in confronting relationship forming a flow chamber (312) having an inlet, a downstream outlet, and intermediate detector region (338). The inlet receives first and second spaced apart streams of input fluid and a third stream of sample fluid (328) containing the cells (330) to be sorted. The first and second streams have respective flow rates relative to the third stream, such that the third stream is constricted forming a relatively narrow sample stream, so that the cells (330) are oriented parallel to the walls (314, 316). A detector (340) detects desired cells (330) and a sorter (356) downstream of the detector (340) sorts the desired cells (330) from the stream.
Abstract:
A method and apparatus for manipulating particles (micro, nano, and pico) having one or more characteristics with an optical trap formed by modulating a laser beam with a Diffractive Optical Element (DOE). At least one characteristic of the material is selected; and a laser beam having a selected wavelength corresponding to the at least one selected characteristic of the material is generated. Values of the DOE are calculated corresponding to the least one selected characteristic of the material. The beam and the DOE are modulated to produce a holographic optical trap having properties corresponding to the at least one selected characteristic; the trap is focused to a beam focus or selected spot size; and the beam focus is located near a particle location for trapping the particle therein.
Abstract:
Apparatus for sorting and orienting sperm cells has a pair or walls (314, 316) in confronting relationship forming a flow chamber (312) having inlet, a downstream outlet, and intermediate detector region (338). The inlet receives first and second spaced apart streams of input fluid and a third stream of sample fluid (328) containing the cells (330) to be sorted. The first and second streams have respective flow rates relative to third stream, such that the third stream is constricted forming a relatively narrow sample stream, so that the cells (330) are oriented parallel to the walls (314, 316). A detector (340) detect desired cells (330) and a sorter (356) downstream of the detector (340) for sorting the desired cells (330) from the stream.
Abstract:
A method for trapping particles where a characteristic of a particle is selected, a laser is used to generate a holographic optical trap, and the beams are modulated and focused as desired.
Abstract:
An apparatus (100) for separating a plurality of components (A, B, C, E) in a fluid includes an optically transparent sorting channel (110) having a first inlet (120) for a first flow (W) and a second inlet (120) for a second flow (X), and a first outlet (130) for the first flow (W) and a second outlet (130) for the second flow (X); and a holographic optical trap system (210) coupled to the optically transparent sorting channel (200) for selectively moving a first component (A) of the plurality of components (A, B, C, E) in the first flow (W) into the second flow (X) to form an enriched second flow (X).
Abstract:
The present invention is related to an apparatus for the sorting of particles in a fluid medium flowing within a liquid-core waveguide, by combining customized light intensity patterns formed inside the waveguide, and diluting the suspension of particles (i.e., cells, blood, nanoparticles, etc.) flowing within the fluid medium of the waveguide. With this customized light intensity pattern, which controls the optical forces introduced by the light confined within the waveguide, and the control of the hydrodynamic forces introduced by the liquid flow (or multiple channel liquid flows), the sorting of particles can be achieved.