High throughput screening with parallel vibrational spectroscopy

• US 20050214167A1
• Filed: 05/19/2005
• Published: 09/29/2005
• Est. Priority Date: 11/22/2002
• Status: Abandoned Application

• Current Assignee: Solus Biosystems, Inc.
• Original Assignee: Solus Biosystems, Inc.
• Inventors: Archibald, William B., Archibald, Alfred W.
• Application Number:
  US11/133,490
• Publication Number:
  US 20050214167A1
• Time in Patent Office: Days
• US Class Current: 422/68.100
• CPC Class Codes: B01L 2300/0654 Lenses; Optical fibres
• CPC Class Codes: B01L 2300/0829 Multi-well plates; Microtitration plates
• CPC Class Codes: B01L 2300/0851 Bottom walls
• CPC Class Codes: B01L 3/5085 for multiple samples, e.g. microtitration plates
• CPC Class Codes: G01N 2021/3595 using FTIR
• CPC Class Codes: G01N 21/03 Cuvette constructions
• CPC Class Codes: G01N 21/0303 Optical path conditioning in cuvettes, e.g. windows; adapted optical elements or systems; path modifying or adjustment G01N21/031 - G01N21/15 take precedence
• CPC Class Codes: G01N 21/253 for batch operation, i.e. multisample apparatus analytical automats G01N35/00
• CPC Class Codes: G01N 21/3577 for analysing liquids, e.g. polluted water
• CPC Class Codes: G01N 21/552 Attenuated total reflection
• CPC Class Codes: G01N 21/553 and using surface plasmons fluorescence excitation G01N21/648; enhanced Raman G01N21/658
• CPC Class Codes: G01N 27/44721 by optical means

Abstract

An apparatus for conducting an analysis of a biological sample is provided. The apparatus includes a sphere designed for application to the biological sample where the sphere is suited for receiving infrared radiation that can be communicated to the biological sample and reflected from the biological sample. The communication to and from the biological sample is through the sphere when the infrared radiation is received.

Claims

1. An apparatus for conducting an analysis of a biological sample, comprising:

a sphere designed for application to the biological sample, the sphere being suited for receiving infrared radiation that can be communicated to the biological sample and reflected from the biological sample, the communication to and from the biological sample being through the sphere when the infrared radiation is received.

2. An apparatus for conducting an analysis of a biological sample as recited in claim 1, further comprising:

a conduit configured to hold the sphere at a first end of the conduit, the conduit capable of propagating the infrared radiation from a radiation source at a second end of the conduit to the sphere and capable of propagating the infrared radiation reflected from the biological sample and received by the sphere to the second end of the conduit.

3. An apparatus for conducting an analysis of a biological sample as recited in claim 1, wherein the sphere has an index of refraction greater than a surrounding solution containing the biological sample.

4. An apparatus for conducting an analysis of a biological sample as recited in claim 1, wherein the sphere is configured to be covered by a biological capture layer.

5. An apparatus for conducting an analysis of a biological sample as recited in claim 1, wherein the biological capture layer is one of an antibody or an analyte in solution.

6. An apparatus for conducting an analysis of a biological sample as recited in claim 1, wherein the communication through the sphere is configured to conduct internal reflection sampling.

7. An apparatus for conducting an analysis of a biological sample as recited in claim 2, wherein the conduit is infrared transparent.

8. An apparatus for conducting an analysis of a biological sample as recited in claim 2, wherein the conduit is one of a tube or a fiber.

9. An apparatus for conducting an analysis of a biological sample as recited in claim 2, wherein a cross-sectional dimension of the conduit controls a range of infrared wavelengths that propagates through the conduit.

10. An apparatus for conducting an analysis of a biological sample as recited in claim 1, wherein the infrared radiation is directed out of the sphere allowing internal reflection analysis and the reflected infrared radiation is capable of entering back into the sphere.

11. An apparatus for conducting an analysis of a biological sample as recited in claim 1, wherein the sphere made from an infrared transparent medium.

12. A method to analyze a biological sample with a sphere, comprising:

applying a sphere to a solution including the biological sample;

attracting the biological sample to the sphere;

attaching the sphere to a conduit;

applying infrared radiation through the conduit and the sphere to the biological sample; and

transmitting infrared radiation reflected back from the biological sample through the sphere and the conduit to an infrared radiation detector.

13. A method to analyze a biological sample with a sphere as recited in claim 12, wherein the sphere is an infrared transparent medium.

14. A method to analyze a biological sample with a sphere as recited in claim 12, wherein attracting the biological sample to the sphere includes attracting the biological sample to one of an antibody or an analyte in solution on a surface of the sphere.

15. A method to analyze a biological sample with a sphere as recited in claim 12, further comprising:

analyzing the infrared radiation reflected back to the biological sample with the infrared radiation detector.

16. A method to analyze a biological sample with a sphere as recited in claim 12, wherein applying an infrared radiation through the conduit and the sphere to the biological sample includes conducting internal reflection sampling with the sphere.

17. A method to analyze a biological sample with a sphere as recited in claim 12, wherein applying the sphere to a solution includes covering the sphere with a biological capture layer.

18. An apparatus for conducting an analysis of a biological sample, the apparatus comprising:

a plurality of fibers configured to collect spectral information from multiple biological samples;

infrared optics coupled to the plurality of fibers, the infrared optics being configured to pass light into the plurality of fibers and receive light from the plurality of fibers; and

a detection system configured to simultaneously measure the light received from the plurality of fibers.

19. A system for conducting an analysis of a biological sample as recited in claim 18, wherein the plurality of fibers is coated with one of an antibody or an analyte in solution capable of attracting the biological sample.

20. A system for conducting an analysis of a biological sample as recited in claim 18, wherein the plurality of fibers is an infrared radiation transparent medium.

21. A system for conducting an analysis of a biological sample as recited in claim 18, wherein a light beam transmitted through the plurality of fibers undergoes multiple internal reflections which are resolved by hyperspectral imaging.

22. A method to analyze a biological sample with a sphere, comprising:

applying the biological sample to the sphere;

applying infrared radiation through the sphere and to the biological sample; and

receiving reflected infrared radiation from the sphere for analysis of the biological sample.

23. A method to analyze a biological sample with a sphere as recited in claim 22, wherein the sphere is an infrared transparent medium.

24. A method to analyze a biological sample with a sphere as recited in claim 22, wherein applying the biological sample to the sphere includes attracting the biological sample to one of an antibody or an analyte in solution on a surface of the sphere.

25. An apparatus for conducting an analysis of a biological sample, comprising:

an object designed for application to the biological sample, the object being suited for receiving infrared radiation that can be communicated to the biological sample and reflected from the biological sample, the communication to and from the biological sample being through the object when the infrared radiation is received.

26. An apparatus for conducting an analysis of a biological sample as recited in claim 25, wherein the object is one of a sphere or a fiber.

27. An apparatus for conducting an analysis of a biological sample as recited in claim 25, wherein the object has an index of refraction greater than a surrounding solution containing the biological sample.