HIGH THROUGHPUT DISPENSER

• US 20090260458A1
• Filed: 04/17/2008
• Published: 10/22/2009
• Est. Priority Date: 04/17/2008
• Status: Abandoned Application

• Current Assignee: WaferGen, Inc.
• Original Assignee: WaferGen, Inc.
• Inventors: Rogers, Joseph F., Kastury, Kumar, Joseph, Victor
• Application Number:
  US12/105,198
• Publication Number:
  US 20090260458A1
• Time in Patent Office: Days
• US Class Current: 73/864.10
• CPC Class Codes: B01L 2200/021 Adjust spacings in an array of wells, pipettes or holders, format transfer between arrays of different size or geometry
• CPC Class Codes: B01L 2300/0819 Microarrays; Biochips
• CPC Class Codes: B01L 2300/0829 Multi-well plates; Microtitration plates
• CPC Class Codes: B01L 2300/0838 Capillaries
• CPC Class Codes: B01L 2300/165 Specific details about hydrophobic, oleophobic surfaces
• CPC Class Codes: B01L 2400/0406 capillary forces
• CPC Class Codes: B01L 2400/0487 fluid pressure, pneumatics
• CPC Class Codes: B01L 3/0217 of the plunger pump type medical syringes A61M
• CPC Class Codes: B01L 3/0293 for liquids
• CPC Class Codes: B01L 3/563 Joints or fittings in general F16L; Separable fluid transfer means to transfer fluids between at least two containers, e.g. connectors
• CPC Class Codes: B01L 7/00 Heating or cooling apparatus autoclaves B01J3/04; Heat insulating devices
• CPC Class Codes: G01N 35/1065 Multiple transfer devices

Abstract

The invention is directed to systems and methods for transferring nano-quantities of fluid samples using a high throughput or ultra high throughput dispenser. Such samples may be transferred from a first location and reformatted for being transferred to a second location. The invention may transfer a predetermined volume of sample quickly and accurately.

Claims

1. A dispenser comprising:

(a) an array of capillaries for transfer of aqueous samples, said array comprising;

a plurality of separate capillary channels each comprising a first end and a second end, wherein the first end is adapted to draw a predetermined volume of sample from a sample source; and

a pressure source capable of operably connecting to the first ends of the plurality of separate capillary channels wherein the pressure source may effect a transfer of the predetermined volume of sample entirely from the first end to the second end; and

(b) a support structure orienting the first end as a first footprint and orienting the second end as a second footprint, wherein the first footprint and second footprint have a different area.

2. The dispenser of claim 1 wherein the sample source is a multi-well plate comprising a plurality of source wells.

3. The dispenser of claim 1 wherein the sample source is at least one of:

a 96, 384 or 1536 microtiter plate.

4. The dispenser of claim 1 wherein the sample source is a microtiter plate for holding polymerase chain reaction (PCR) samples.

5. The dispenser of claim 1 wherein the plurality of separate capillary channels comprises at least one of:

96 capillary channels, 384 capillary channels, or 1536 capillary channels.

6. The dispenser of claim 1 wherein the plurality of separate capillary channels includes a plurality of separate capillary tubes.

7. The dispenser of claim 6 wherein the plurality of separate capillary tubes is made of glass, plastic, or a polymer.

8. The dispenser of claim 1 wherein the plurality of separate capillary channels is fabricated using at least one of the following methods:

UV polymerization lithography, micro injection molding, hot embossing, graytone lithography or x-ray lithography.

9. The dispenser of claim 1 wherein at least one of the plurality of separate capillary channels comprises one or more preloaded reagents.

10. The dispenser of claim 1 wherein the predetermined volume of sample is up to 100 nL

11. The dispenser of claim 1 wherein the first footprint has a greater area than the second footprint.

12. The dispenser of claim 1 wherein the first end is adapted to draw the predetermined volume of sample from the sample source using capillary action.

13. The dispenser of claim 1 wherein the pressure source is a positive pressure chamber.

14. The dispenser of claim 13 wherein the positive pressure chamber exerts a positive pressure greater than 3 atm into the plurality of separate capillary channels.

15. The dispenser of claim 1 wherein the second ends are directed to one or more sample receiving location.

16. The dispenser of claim 1 wherein the sample receiving location is a microchip or microarray.

17. The dispenser of claim 1 wherein the plurality of capillary channels is capable of dispensing a hydrophilic liquid sample and hydrophobic liquid sample at the same time.

18. A dispensing kit comprising the array of capillaries of claim 1 and instructions for use thereof.

47. The dispenser of claim 1 wherein an individual channel of said plurality is coated with a hydrophobic coating.

48. The dispenser of claim 47 wherein the individual channel comprises a tip that is coated with said hydrophobic coating.

19. A method of transferring of aqueous samples, comprising:

receiving a sample from a sample source to a plurality of separate capillary channels each comprising a first end and a second end;

drawing a predetermined volume of sample through the first end of each of the plurality of separate capillary channels using capillary action;

applying positive pressure to the first end of each of the plurality of separate capillary channels;

dispensing the entire predetermined volume of sample through the second end of each of the plurality of separate capillary channels to a sample receiving location.

20. The method of claim 19 further comprising flipping the plurality of separate capillary channels to a degree sufficient for applying positive pressure to the first ends.

21. The method of claim 19 wherein the predetermined volume of sample drawn through the first end of each of the plurality of separate capillary channels is the substantially same volume.

22. A dispenser comprising:

(a) an array of capillaries for transfer of aqueous samples, said array comprising;

a plurality of separate capillary channels each comprising a first end and a second end; and

(b) a support structure orienting the first end as a first footprint and orienting the second end as a second footprint,

wherein each of the plurality of separate capillary channels have the substantially same volume capacity,

wherein the first end is adapted to draw the same predetermined volume of sample from a sample source, and

wherein the first footprint and second footprint have a different area.

23. The dispenser of claim 22 wherein each of the plurality of separate capillary channels is effective to transfer the entire predetermined volume of sample from the first end to the second end.

24. The dispenser of claim 22 wherein the sample source is a multi-well plate comprising a plurality of source wells.

25. The dispenser of claim 22 wherein the sample source is at least one of:

a 96, 384 or 1536 microtiter plate.

26. The dispenser of claim 22 wherein the sample source is a microtiter plate for holding polymerase chain reaction (PCR) samples.

27. The dispenser of claim 22 wherein the plurality of separate capillary channels comprises at least one of:

96 capillary channels, 384 capillary channels, or 1536 capillary channels.

28. The dispenser of claim 22 wherein the plurality of separate capillary channels includes a plurality of separate capillary tubes.

29. The dispenser of claim 22 wherein the plurality of separate capillary channels is fabricated using at least one of the following methods:

UV polymerization lithography, micro injection molding, hot embossing, graytone lithography or x-ray lithography.

30. The dispenser of claim 22 wherein the predetermined volume of sample is up to 100 nL.

31. The dispenser of claim 22 wherein the first footprint has a greater area than the second footprint.

32. The dispenser of claim 22 wherein the first end is adapted to draw the predetermined volume of sample from the sample source using capillary action.

33. The dispenser of claim 23 wherein each of the plurality of separate capillary channels is effective to transfer the entire predetermined volume of sample using positive pressure from the first end.

34. The dispenser of claim 22 wherein the second ends are directed to one or more sample receiving location.

35. The dispenser of claim 22 wherein the sample receiving location is a microchip or microarray.

36. The dispenser of claim 22 wherein the lengths of the plurality of separate capillary channels are substantially the same.

37. The dispenser of claim 22 wherein the lengths of the plurality of separate capillary channels are substantially different.

38. An array of capillaries for transfer of aqueous samples, comprising:

a plurality of separate capillary channels each comprising a first end and a second end; and

a support structure orienting the first ends as a first footprint and orienting the second ends as a second footprint,

wherein the first end is adapted to draw a predetermined volume of sample from a sample source,

wherein the second end is adapted to dispense the predetermined volume of sample to a sample receiving location wherein both the second end and the sample receiving location are adapted to remain substantially stationary during the dispensing, and

wherein the first footprint and second footprint have a different area.

39. A system for dispensing comprising:

a sample source;

an array of capillaries for transfer of a sample from the sample source, the array of capillaries comprising;

a plurality of separate capillary channels each comprising a first end and a second end, wherein the first end is adapted to draw a predetermined volume of sample from the sample source,

a pressure source capable of operably connecting to the first ends of the plurality of separate capillary channels wherein the pressure source may effect a transfer of the predetermined volume of sample entirely from the first end to the second end, and

a support structure orienting the first ends as a first footprint and orienting the second ends as a second footprint, wherein the first footprint and second footprint have a different area;

a sample receiving location for receiving the predetermined volume of sample from the second end, wherein the sample receiving location contacts a temperature block; and

an optical detection device directed to the sample receiving location.

40. The system of claim 39 wherein the sample source is a multi-well plate comprising a plurality of source wells.

41. The system of claim 39 wherein the sample source is at least one of:

a 96, 384 or 1536 microtiter plate.

42. The system of claim 39 wherein the sample source is a microtiter plate for holding polymerase chain reaction (PCR) samples.

43. The system of claim 39 wherein the sample receiving location is a microchip or microarray.

44. The system of claim 39 wherein the sample receiving location is used for fluorescent assay.

45. The system of claim 39 wherein the temperature block provides heat to the sample receiving location.

46. A sample transfer block, comprising:

a plurality of separate capillary channels embedded therein, each comprising a first end and a second end, wherein the first end is adapted to draw a predetermined volume of sample from a sample source;

a pressure source capable of operably connecting to the first ends of the plurality of separate capillary channels wherein the pressure source may effect a transfer of the predetermined volume of sample entirely from the first end to the second end; and

a support structure orienting the first ends as a first footprint and orienting the second ends as a second footprint, wherein the first footprint and second footprint have a different area.