Method for creating chemical sensors using contact-based microdispensing technology

• US 20050221279A1
• Filed: 04/04/2005
• Published: 10/06/2005
• Est. Priority Date: 04/05/2004
• Status: Abandoned Application

• Current Assignee: Lawrence Livermore National Security LLC (Government of the United States of America)
• Original Assignee: Regents of the University of California (University of California)
• Inventors: Paulson, Christine N., Carter, J. Chance, Bearinger, Jane P., Wilson, Thomas S., Brown, Steve B., Colston, Billy W. Jr., Setlur, Ujwal S.
• Application Number:
  US11/099,274
• Publication Number:
  US 20050221279A1
• Time in Patent Office: Days
• US Class Current: 435/4
• CPC Class Codes: B82Y 10/00 Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
• CPC Class Codes: B82Y 20/00 Nanooptics, e.g. quantum optics or photonic crystals
• CPC Class Codes: B82Y 5/00 Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
• CPC Class Codes: G01N 21/77 by observing the effect on a chemical indicator
• CPC Class Codes: G01N 33/54373 involving physiochemical end-point determination, e.g. wave-guides, FETS, gratings

Abstract

Contact based rigid pin tool technology is utilized to print one or more indicator chemistries on an optical array or a disposable sheath configured on such arrays. Each indicator chemistry contains predetermined material, such as, light energy absorbing dye(s), optically responsive particles, etc., whose optical characteristics change in response to the target ligand or analyte. By spectrally monitoring such changes using fluorescence and/or absorption spectroscopy, detection and/or quantitation of the target ligand or analyte can be obtained.

Claims

1. A method of producing a chemical sensor, comprising:

providing an optical array; and

contact printing one or more indicator chemistries to said optical array using one or more rigid pin printing tools, wherein said one or more indicator chemistries can optically change due to a detected ligand or analyte of interest.

2. The method of claim 1, wherein said one or more rigid pin printing tools comprise solid pins configured with a concave bottom.

3. The method of claim 1, wherein said one or more rigid pin printing tools comprise solid pins configured with a flat bottom.

4. The method of claim 1, wherein said one or more rigid pin printing tools comprise solid pins configured with a slot.

5. The method of claim 1, wherein said optical changes due to a detected ligand or analyte of interest comprises in-vivo monitoring.

6. The method of claim 1, wherein said optical changes due to a detected ligand or analyte of interest comprises in-vitro monitoring.

7. The method of claim 1, wherein said ligand or analyte of interest is disposed within a fluid medium.

8. The method of claim 7, wherein said fluid medium comprises a liquid medium.

9. The method of claim 7, wherein said fluid medium comprises an airborne medium.

10. The method of claim 1, wherein said one or more indicator chemistries comprise one or more light absorbing dyes.

11. The method of claim 10, wherein said one or more indicator chemistries further comprise enzyme (FRET)-based peptide sequences.

12. The method of claim 10, wherein said one or more indicator chemistries further comprise enzyme antibody conjugates.

13. The method of claim 1, wherein said indicator chemistries further comprise an optically responsive particle.

14. The method of claim 13, wherein said optically responsive particle comprises at least one particle selected from:

a quantum dot, a polymeric material, and an optically active inorganic crystal.

15. The method of claim 1, wherein said optical array comprises a bundle containing a plurality of fiber optic strands and wherein said step of printing one or more indicator chemistries comprises printing one or more indicator chemistries on the tip of said bundle of fiber optic strands.

16. The method of claim 1, wherein said optical array comprises at least one array selected from:

fused fiber optic tapers, coherent capillary arrays, image conduits, clad rods, and optical fiber bundles.

17. The method of claim 1, wherein a protective sheath is adapted on the surface of said optical array for receiving said one or more indicator chemistries.

18. The method of claim 1, wherein said method further comprises polymerizing said printed said one or more indicator chemistries.

19. The method of claim 1, wherein said polymerizing step comprises at least one polymerization technique selected from:

photo-initiation, thermal-initiation, chemical-initiation, ionization-initiation, plasma-initiation, and electro-initiation.

20. The method of claim 1, wherein an arranged printing pattern of said one or more indicator chemistries are predetermined via custom and/or commercial software.

21. The method of claim 1, wherein each of said one or more indicator chemistries can be configured as a polymerized microdot that is capable of being further configured with one or more additional layers of applied indicator chemistries or polymer matrix.

22. The method of claim 1, further comprising functionalizing the surface of said optical array for adhering said one or more indicator chemistries.

23. The method of claim 1, wherein said one or more indicator chemistries comprise multianalytes.

24. A chemical sensor production system, comprising:

a printing platform;

an optical array capable of being disposed within said printing platform;

one or more rigid pin printing tools adapted with said printing platform for contact printing one or more indicator chemistries on said optical array;

wherein said indicator chemistries can optically change due to a detected ligand or analyte of interest; and

a polymerization chamber arranged to polymerize said printed one or more indicator chemistries.

25. The system of claim 24, wherein said one or more rigid pin printing tools comprise solid pins configured with a concave bottom.

26. The system of claim 24, wherein said one or more rigid pin printing tools comprise solid pins configured with a flat bottom.

27. The system of claim 24, wherein said one or more rigid pin printing tools comprise solid pins configured with a slot.

28. The system of claim 24, wherein said optical changes due to a detected ligand or analyte of interest comprises in-vivo monitoring.

29. The system of claim 24, wherein said optical changes due to a detected ligand or analyte of interest comprises in-vitro monitoring.

30. The system of claim 24, wherein said ligand or analyte of interest is disposed within a fluid medium.

31. The system of claim 30, wherein said fluid medium comprises a liquid medium.

32. The system of claim 30, wherein said fluid medium comprises an airborne medium.

33. The system of claim 24, wherein said one or more indicator chemistries comprise one or more light absorbing dyes.

34. The system of claim 33, wherein said one or more indicator chemistries further comprise enzyme (FRET)-based peptide sequences.

35. The system of claim 33, wherein said one or more indicator chemistries further comprise enzyme antibody conjugates.

36. The system of claim 24, wherein said indicator chemistries further comprise an optically responsive particle.

37. The system of claim 36, wherein said optically responsive particle comprises at least one particle selected from:

a quantum dot, a polymeric material, and an optically active inorganic crystal.

38. The system of claim 24, wherein said optical array comprises a bundle containing a plurality of fiber optic strands.

39. The system of claim 24, wherein said optical array comprises at least one array selected from:

fused fiber optic tapers, coherent capillary arrays, image conduits, clad rods, and optical fiber bundles.

40. The system of claim 24, wherein a protective sheath is adapted on the surface of said optical array for receiving said one or more indicator chemistries.

41. The system of claim 24, wherein an arranged printing pattern of said one or more indicator chemistries are predetermined via custom and/or commercial software.

42. The system of claim 24, wherein each of said one or more indicator chemistries can be configured as a polymerized microdot that is capable of being further configured with one or more additional layers of applied indicator chemistries or polymer matrix.

43. The system of claim 24, wherein the surface of said optical array is functionalized so as to adhere said indicator chemistries.

44. The system of claim 24, wherein said one or more indicator chemistries comprise analytes.

54. The sensor of claim 43, wherein said one or more indicator chemistries comprise one or more light absorbing dyes.

55. The sensor of claim 54, wherein said one or more contact printed indicator chemistries further comprise enzyme (FRET)-based peptide sequences.

56. The sensor of claim 54, wherein said one or more contact printed indicator chemistries further comprise enzyme antibody conjugates.

45. A chemical sensor, comprising:

an optical array;

one or more contact-printed indicator chemistries arranged on said optical array;

wherein said indicator chemistries can optically change due to a detected ligand or analyte of interest.

46. The sensor of claim 45, wherein said indicator chemistries are capable of being contact printed with a rigid printing pin tool configured with a concave bottom.

47. The sensor of claim 45, wherein said indicator chemistries are capable of being contact printed with a rigid pin printing tool configured with a slot.

48. The sensor of claim 45, wherein said indicator chemistries are capable of being contact printed with a rigid pin printing tool configured with a flat bottom.

49. The sensor of claim 45, wherein said optical changes due to a detected ligand or analyte of interest comprises in-vivo monitoring.

50. The sensor of claim 45, wherein said optical changes due to a detected ligand or analyte of interest comprises in-vitro monitoring.

51. The sensor of claim 45, wherein said ligand or analyte of interest is disposed within a fluid medium.

52. The sensor of claim 51, wherein said fluid medium comprises a liquid medium.

53. The sensor of claim 51, wherein said fluid medium comprises an airborne medium.

57. The sensor of claim 45, wherein said indicator chemistries further comprise an optically responsive particle.

58. The sensor of claim 57, wherein said optically responsive particle comprises at least one particle selected from:

a quantum dot, a polymeric material, and an optically active inorganic crystal.

59. The sensor of claim 45, wherein said optical array comprises a bundle containing a plurality of fiber optic strands.

60. The sensor of claim 45, wherein said optical array comprises at least one array selected from:

fused fiber optic tapers, coherent capillary arrays, image conduits, clad rods, and optical fiber bundles.

61. The sensor of claim 45, wherein each of said one or more contact-printed indicator chemistries can be configured as a polymerized microdot that is capable of being further configured with one or more additional layers of applied indicator chemistries or polymer matrix.

62. The sensor of claim 45, wherein said one or more contact-printed indicator chemistries comprise multi-analytes.