CA2498933A1 - Method and apparatus for aligning elongated microbeads in order to interrogate the same - Google Patents
Method and apparatus for aligning elongated microbeads in order to interrogate the same Download PDFInfo
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- CA2498933A1 CA2498933A1 CA002498933A CA2498933A CA2498933A1 CA 2498933 A1 CA2498933 A1 CA 2498933A1 CA 002498933 A CA002498933 A CA 002498933A CA 2498933 A CA2498933 A CA 2498933A CA 2498933 A1 CA2498933 A1 CA 2498933A1
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- microbeads
- plate
- grooves
- code
- grating
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- 238000000034 method Methods 0.000 title claims abstract 63
- 239000011325 microbead Substances 0.000 title claims abstract 45
- 239000011324 bead Substances 0.000 claims abstract 12
- 230000003287 optical effect Effects 0.000 claims abstract 12
- 239000011521 glass Substances 0.000 claims abstract 7
- 239000000126 substance Substances 0.000 claims abstract 5
- 239000011295 pitch Substances 0.000 claims 6
- 238000001514 detection method Methods 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 2
- 229910052710 silicon Inorganic materials 0.000 claims 2
- 239000010703 silicon Substances 0.000 claims 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 239000005388 borosilicate glass Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000005530 etching Methods 0.000 claims 1
- 239000005350 fused silica glass Substances 0.000 claims 1
- 230000005484 gravity Effects 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 239000005368 silicate glass Substances 0.000 claims 1
- 238000000992 sputter etching Methods 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 239000000523 sample Substances 0.000 abstract 2
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H1/0272—Substrate bearing the hologram
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
- B01L3/502761—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip specially adapted for handling suspended solids or molecules independently from the bulk fluid flow, e.g. for trapping or sorting beads, for physically stretching molecules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
- B01L3/5085—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above for multiple samples, e.g. microtitration plates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
- B01J2219/00277—Apparatus
- B01J2219/00457—Dispensing or evacuation of the solid phase support
- B01J2219/00459—Beads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
- B01J2219/00277—Apparatus
- B01J2219/00457—Dispensing or evacuation of the solid phase support
- B01J2219/00459—Beads
- B01J2219/00461—Beads and reaction vessel together
- B01J2219/00463—Directed sorting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
- B01J2219/00277—Apparatus
- B01J2219/00457—Dispensing or evacuation of the solid phase support
- B01J2219/0047—Pins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
- B01J2219/00277—Apparatus
- B01J2219/00497—Features relating to the solid phase supports
- B01J2219/005—Beads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
- B01J2219/00277—Apparatus
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- B01J2219/00547—Bar codes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
- B01J2219/00277—Apparatus
- B01J2219/0054—Means for coding or tagging the apparatus or the reagents
- B01J2219/00572—Chemical means
- B01J2219/00576—Chemical means fluorophore
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
- B01J2219/0068—Means for controlling the apparatus of the process
- B01J2219/00702—Processes involving means for analysing and characterising the products
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- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
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- B01L2200/0636—Focussing flows, e.g. to laminate flows
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/06—Fluid handling related problems
- B01L2200/0647—Handling flowable solids, e.g. microscopic beads, cells, particles
- B01L2200/0668—Trapping microscopic beads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0627—Sensor or part of a sensor is integrated
- B01L2300/0654—Lenses; Optical fibres
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- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/04—Moving fluids with specific forces or mechanical means
- B01L2400/0403—Moving fluids with specific forces or mechanical means specific forces
- B01L2400/0409—Moving fluids with specific forces or mechanical means specific forces centrifugal forces
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01L2400/00—Moving or stopping fluids
- B01L2400/04—Moving fluids with specific forces or mechanical means
- B01L2400/0403—Moving fluids with specific forces or mechanical means specific forces
- B01L2400/0457—Moving fluids with specific forces or mechanical means specific forces passive flow or gravitation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01L2400/04—Moving fluids with specific forces or mechanical means
- B01L2400/0475—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
- B01L2400/0487—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure fluid pressure, pneumatics
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2210/00—Object characteristics
- G03H2210/50—Nature of the object
- G03H2210/53—Coded object not directly interpretable, e.g. encrypted object, barcode
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2230/00—Form or shape of the hologram when not registered to the substrate
- G03H2230/10—Microhologram not registered to the substrate
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2270/00—Substrate bearing the hologram
- G03H2270/20—Shape
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2270/00—Substrate bearing the hologram
- G03H2270/20—Shape
- G03H2270/24—Having particular size, e.g. microscopic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
Abstract
A method and apparatus are provided for aligning optical elements or microbeads, wherein each microbead has an elongated body with a code embedded therein along a longitudinal axis thereof to be read by a code reading device.
The microbeads are aligned with a positioning device so the longitudinal axis of the microbeads is positioned in a fixed orientation relative to the code reading device. The microbeads are typically cylindrically shaped glass beads between 25 and 250 microns (~m) in diameter and between 100 and 500 ~m long, and have a holographic code embedded in the central region of the bead, which is used to identify it from the rest of the beads in a batch of beads with many different chemical probes. A cross reference is used to determine which probe is attached to which bead, thus allowing the researcher to correlate the chemical content on each bead with the measured fluorescence signal. Because the code consists of a diffraction grating typically disposed along an axis, there is a particular alignment required between the incident readout laser beam and the readout detector in two of the three rotational axes. The third axis, rotation about the center axis of the cylinder, is azimuthally symmetric and therefore does not require alignment.
The microbeads are aligned with a positioning device so the longitudinal axis of the microbeads is positioned in a fixed orientation relative to the code reading device. The microbeads are typically cylindrically shaped glass beads between 25 and 250 microns (~m) in diameter and between 100 and 500 ~m long, and have a holographic code embedded in the central region of the bead, which is used to identify it from the rest of the beads in a batch of beads with many different chemical probes. A cross reference is used to determine which probe is attached to which bead, thus allowing the researcher to correlate the chemical content on each bead with the measured fluorescence signal. Because the code consists of a diffraction grating typically disposed along an axis, there is a particular alignment required between the incident readout laser beam and the readout detector in two of the three rotational axes. The third axis, rotation about the center axis of the cylinder, is azimuthally symmetric and therefore does not require alignment.
Claims (63)
1. A method for aligning microbeads to be read by a code reading or other detection device, comprising the step of:
providing microbeads to a positioning device, each having an elongated body with a code embedded therein along a longitudinal axis thereof; and aligning the microbeads with the positioning device so the longitudinal axis of the microbeads is in a axed orientation relative to the code reading or other detection device.
providing microbeads to a positioning device, each having an elongated body with a code embedded therein along a longitudinal axis thereof; and aligning the microbeads with the positioning device so the longitudinal axis of the microbeads is in a axed orientation relative to the code reading or other detection device.
2. A method according to claim 1, wherein the positioning device is a plate having a multiplicity of grooves therein.
3. A method according to claim 1, wherein the method includes agitating the plate to encourage the alignment of the microbeads in the grooves.
4. A method according to claim 1, wherein the microbeads are cylindrically shaped glass beads between 25 and 250 microns in diameter and between 100 and 500 microns long.
5. A method according to claim 1, wherein the microbeads have a holographic code embedded in a central region thereof.
6. A method according to claim 1, wherein the code is used to correlate a chemical content on each bead with a measured fluorescence signal.
7. A method according to claim 1, wherein each microbead is substantially aligned in relation to its pitch and yaw rotational axes.
8. A method according to claim 1, wherein the plate has a series of parallel grooves having one of several different shapes, including square, v-shaped or semi-circular.
9. A method according to claim 1, wherein the plate is an optically transparent medium including boro-silicate glass, fused silica or plastic, and the grooves are formed therein.
10. A method according to claim 1, wherein the grooves have a depth that is dimensioned to be at least the diameter of the microbeads, including at least 110% of the diameter of the microbead.
11. A method according to claim 1, wherein either the grooves have a depth between 10 and 125 microns, the depth is dimensioned within 90% of the diameter of the microbeads, or a combination thereof.
12. A method according to claim 1, wherein the spacing of the grooves is between 1 and 2 times the diameter of the microbeads.
13. A method according to claim 1, wherein the grooves have a width that is dimensioned to prevent the beads from rotating therein by more than a few degrees.
14. A method according to claim 1, wherein the grooves have a width that is dimensioned within 5% of the diameter of the microbeads.
15. A method according to claim 1, wherein the grooves have a bottom that is flat enough to prevent the heads from rotating, by more than a few tenths of a degree, relative to the code reader device.
16. A method according to claim 1, wherein the code reader device includes a readout camera.
17. A method according to claim 1, wherein the step of agitating the plate includes using a sonic transducer, a mechanical wipe, or shaking or rocking device.
18. A method according to claim 1, wherein the method includes using an open format approach by dispensing the microbeads onto the plate using a pipette tip or syringe tip and not covering the plate.
19. A method according to claim 1, wherein the method includes a closed format approach by dispensing the microbeads into a cuvette-like device having comprising the plate, at least three walls and a cover.
20. A method according to claim 19, wherein the step of dispensing includes injecting the microbeads into the cuvette-like device by placing them near an edge of an opening and allowing the surface tension, or an induced fluid flow, to pull the microbeads into the cuvette-like.
21. A method according to claim 19, wherein the method includes using a closed format approach by sectioning a closed region into two regions, a first region where the microbeads are free to move about in a plane, either in a groove or not, and a second region where the microbeads are trapped in a groove and can only move along the ages of the grooves.
22. A method according to claim 21, wherein the method includes the step of trapping the microbeads in a groove by reducing the height of the closed region so that the microbeads can no longer come out of the groove.
23. A method according to claim 21, wherein the first region is used to pre-align the beads into a groove, facilitating the introduction of beads into the second region.
24. A method according to claim 21, wherein the method includes tilting the cuvette-like up so gravity can be used to pull the microbeads along a groove from the first region to the second region.
25. A method according to claim 21, wherein the plate is made of silicon having walls formed by Su8 coupled thereto, or having walls formed by etching the silicon.
26. A method according to claim 1, wherein the method includes the step of identifying a chemical content on the surface of the microbead with a measured fluorescence signal.
27. A method according to claim 1, wherein the method includes passing a code reading signal through the microbead aligned on the poisitioning device.
28. The method according to claim 1, wherein the method further includes the step of correlating a chemical content identified on each microbead with a fluorescence signal, including one provided by an incident laser beam device.
29. A method according to claim 1, wherein the method includes the step of identifying the code in the microbead.
30. A method according to claim 1, wherein the grooves of the plate are formed using a photo lithographic process.
31. A method according to claim 1, wherein the plate includes a glass plate having Su8 thereon.
32. A method according to claim 1, wherein the glass plate is a low fluorescence glass.
33. A method according to claim 1, wherein the glass plate is a bore silicate glass.
34. A method according to claim 1, wherein the grooves on the plate are mechanically machined.
35. A method according to claim 1, wherein the grooves on the plate are formed by deep reactive. ion etching.
36. A method according to claim 1, wherein the grooves on the plate are formed by injection molding.
37. A method according to claim 2, wherein the plate has a mirror coating.
38. A method according try claim 2, wherein the plate is a disk having circumferential grooves, concentric grooves, or a combination thereof.
39. A method according to claim 2, wherein the plate is a disk, having radial grooves.
40. A method according to claim 2, wherein the plate is a disk having a microbead loading area located in the center of the disk.
41. A method according to claim 2, wherein the plate is a disk having one or more radial water channels extending from the center to the outer periphery thereof.
42. A method according to claim 2, wherein the method includes arranging the plate on a rotating disk.
43. A method according to claim 1, wherein the positioning device is a flow tube.
44. A method according to claim 43, wherein the step of providing includes providing the microbeads to the flow tube in a fluid.
45. A method according to claim 1, wherein the microbeads have tubular holes extending therethrough.
46. A method according to claim 1, wherein the microbeads have teeth or protrusions thereon.
47. Apparatus for aligning microbeads to be read by a code reading device, comprising:
a positioning device for aligning microbeads, each microbead having an elongated body with a code embedded therein along a longitudinal axis thereof, so the longitudinal axis of the microbeads is positioned in a fixed orientation relative to the code reading device.
a positioning device for aligning microbeads, each microbead having an elongated body with a code embedded therein along a longitudinal axis thereof, so the longitudinal axis of the microbeads is positioned in a fixed orientation relative to the code reading device.
48. Apparatus according to claim 47, wherein the positioning device is a plate having a multiplicity of grooves therein.
49. Apparatus according to claim 47, wherein the apparatus includes means for agitating the plate to encourage the alignment of the microbeads in the grooves.
50. Apparatus according to claim 47, wherein the microbeads are cylindrically shaped glass beads between 25 and 250 microns in diameter and between 100 and 500 microns long.
51. Apparatus according to claim 47, wherein the microbeads have a holographic code embedded in a central region thereof.
52. Apparatus according to claim 47, wherein the positioning device is a rotating disk having a multiplicity of circumferential grooves, concentric grooves or a combination thereof formed therein, or having one or more spiral grooves.
53. Apparatus according to claim 47, wherein the positioning device is a tube.
54. Apparatus for aligning an optical identification element, comprising:
the optical identification element having an optical substrate having at least a portion thereof with at least one diffraction grating disposed therein, the grating having at least one refractive index pitch superimposed at a common location, the grating providing an output optical signal when illuminated by an incident light signal, the optical output signal being indicative of a code, and the optical identification element being an elongated object with a longitudinal axis; and an alignment device which aligns the optical identification element such that said output optical signal is indicative of the code.
the optical identification element having an optical substrate having at least a portion thereof with at least one diffraction grating disposed therein, the grating having at least one refractive index pitch superimposed at a common location, the grating providing an output optical signal when illuminated by an incident light signal, the optical output signal being indicative of a code, and the optical identification element being an elongated object with a longitudinal axis; and an alignment device which aligns the optical identification element such that said output optical signal is indicative of the code.
55. Apparatus according to claim 54, wherein the alignment device is a plate having a multiplicity of grooves therein.
56. Apparatus according to claim 55, wherein the plate is a disk and the multiplicity of grooves are concentric circles or a spiral.
57. Apparatus according to claim 54, wherein the alignment device is a tube having a bore for receiving the optical identification element.
58. The apparatus of claim 47 wherein said code comprises at least one diffraction grating disposed in said microbead, said grating having a resultant refractive index variation at a grating location; and said grating providing an output optical signal indicative of said code when illuminated by an incident light signal.
59. The apparatus of claim 58 wherein said resultant refractive index variation comprises at least one refractive index pitch superimposed at said grating location.
60. The apparatus of claim 59 wherein said resultant refractive index variation comprises a plurality of refractive index pitches superimposed at said grating location.
61. The method of claim 1 wherein said code comprises at least one diffraction grating disposed in said microbead, said grating having a resultant refractive index variation at a grating location; and said grating providing an output optical signal indicative of said code when illuminated by an incident light signal.
62. The method of claim 61 wherein said resultant refractive index variation comprises at least one refractive index pitch superimposed at said grating location.
63. The method of claim 62 wherein said resultant refractive index variation comprises a plurality of refractive index pitches superimposed at said grating location.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41054102P | 2002-09-12 | 2002-09-12 | |
US60/410,541 | 2002-09-12 | ||
US64568903A | 2003-08-20 | 2003-08-20 | |
US10/645,689 | 2003-08-20 | ||
US10/645,686 US20040075907A1 (en) | 2002-08-20 | 2003-08-20 | Diffraction grating-based encoded micro-particles for multiplexed experiments |
US10/645,686 | 2003-08-20 | ||
PCT/US2003/028862 WO2004024328A1 (en) | 2002-09-12 | 2003-09-12 | Method and apparatus for aligning elongated microbeads in order to interrogate the same |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2498933A1 true CA2498933A1 (en) | 2004-03-25 |
CA2498933C CA2498933C (en) | 2012-08-28 |
Family
ID=39959537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2498933A Expired - Lifetime CA2498933C (en) | 2002-09-12 | 2003-09-12 | Method and apparatus for aligning elongated microbeads in order to interrogate the same |
Country Status (5)
Country | Link |
---|---|
US (1) | US7399643B2 (en) |
EP (1) | EP1575707A1 (en) |
AU (1) | AU2003267192A1 (en) |
CA (1) | CA2498933C (en) |
WO (1) | WO2004024328A1 (en) |
Families Citing this family (107)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7901630B2 (en) | 2002-08-20 | 2011-03-08 | Illumina, Inc. | Diffraction grating-based encoded microparticle assay stick |
US7164533B2 (en) | 2003-01-22 | 2007-01-16 | Cyvera Corporation | Hybrid random bead/chip based microarray |
US7872804B2 (en) | 2002-08-20 | 2011-01-18 | Illumina, Inc. | Encoded particle having a grating with variations in the refractive index |
US7923260B2 (en) | 2002-08-20 | 2011-04-12 | Illumina, Inc. | Method of reading encoded particles |
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-
2003
- 2003-09-12 CA CA2498933A patent/CA2498933C/en not_active Expired - Lifetime
- 2003-09-12 US US10/661,836 patent/US7399643B2/en active Active
- 2003-09-12 EP EP03749663A patent/EP1575707A1/en not_active Withdrawn
- 2003-09-12 AU AU2003267192A patent/AU2003267192A1/en not_active Abandoned
- 2003-09-12 WO PCT/US2003/028862 patent/WO2004024328A1/en not_active Application Discontinuation
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AU2003267192A1 (en) | 2004-04-30 |
WO2004024328B1 (en) | 2004-06-03 |
US7399643B2 (en) | 2008-07-15 |
WO2004024328A1 (en) | 2004-03-25 |
CA2498933C (en) | 2012-08-28 |
US20040132205A1 (en) | 2004-07-08 |
EP1575707A1 (en) | 2005-09-21 |
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