Redrawn capillary imaging reservoir
First Claim
1. A method for transferring individual droplets of liquid to a substrate, comprising:
- providing a reservoir device having a plurality of individual passages, each passage having an input end and an output end of smaller cross sectional area than the input end;
positioning a transfer device having an array of pins extending therefrom such that the pins face the output ends of the passages;
contacting the pins with liquid from the corresponding passages to transfer droplets of liquid from the corresponding passages to the pins; and
moving the pins relative to the substrate to transfer the droplets of liquid onto the substrate.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods and apparatus for depositing a high density biological or chemical array onto a solid support. Specifically, the apparatus is made up of a plurality of open ended channels collectively forming a matrix. The matrix has been redrawn and cut such that the pitch of the channels on the loading end is larger than the pitch of the channels on the liquid delivery end. The upper portion of each channel serves as a reservoir, while the opposing end, which has been formed by the redrawing process, is diametrically sized such that liquid in the reservoir is retained by capillary pressure at the delivery end. At any point along the height of the capillary reservoir device, all cross-sectional dimensions and areas are uniformly reduced. In other words, the on-center orientation of any two channels, also referred to as the pitch between 2 channels, measured as a function of the diameter of any cross section, is constant throughout the structure. The liquid within the channels is either printed directly from the tool onto a substrate or transferred to a substrate by a typographical pin plate. In another embodiment, the device may be used in transferring sample between multiwell plates of different well density.
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Citations
67 Claims
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1. A method for transferring individual droplets of liquid to a substrate, comprising:
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providing a reservoir device having a plurality of individual passages, each passage having an input end and an output end of smaller cross sectional area than the input end;
positioning a transfer device having an array of pins extending therefrom such that the pins face the output ends of the passages;
contacting the pins with liquid from the corresponding passages to transfer droplets of liquid from the corresponding passages to the pins; and
moving the pins relative to the substrate to transfer the droplets of liquid onto the substrate. - View Dependent Claims (4, 5, 6, 7, 8)
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2. A method for transferring individual droplets of liquid to a substrate, comprising:
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providing a reservoir device having a plurality of individual passages, each passage having an output end and decreasing in cross sectional area along at least a portion of the passage in a direction toward the output end;
positioning a transfer device having an array of pins extending therefrom such that the pins face the output ends of the passages;
contacting the pins with liquid from the corresponding passages to transfer droplets of liquid from the corresponding passages to the pins; and
moving the pins relative to the substrate to transfer the droplets of liquid onto the substrate.
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3. A method for transferring individual droplets of liquid to a substrate, comprising:
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providing a rescrvoir device having a plurality of individual passages, each passage having an output end, a density of the passages in the reservoir device increasing along at least a portion thereof in a direction toward the output ends of the passages;
positioning a transfer device having an array of pins extending therefrom such that the pins face the output ends of the passages;
contacting the pins with liquid from the corresponding passages to transfer droplets of liquid from the corresponding passages to the pins; and
moving the pins relative to the substrate to transfer the droplets of liquid onto the substrate.
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9. A method for transferring individual droplets of liquid to a substrate, comprising:
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providing a reservoir device having a plurality of individual passages, each passage having an input end and an output end of smaller cross sectional area than the input end;
positioning a transfer device having an array of pins extending therefrom such that the pins face the output ends of the passages;
contacting the pins with liquid from the corresponding passages to transfer droplets of liquid from the corresponding passages to the pins; and
moving the pins relative to the substrate to transfer the droplets of liquid onto the substrate, wherein the providing step includes bundling a plurality of capillary tubes, and redrawing the bundled capillary tubes.
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10. A method for transferring individual droplets of liquid to a substrate, comprising:
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providing a reservoir device having a plurality of individual passages, each passage having an input end and an output end of smaller cross sectional area than the input end;
positioning a transfer device having an array of pins extending therefrom such that the pins face the output ends of the passages;
contacting the pins with liquid from the corresponding passages to transfer droplets of liquid from the corresponding passages to the pins; and
moving the pins relative to the substrate to transfer the droplets of liquid onto the substrate, wherein the providing step includes extruding a material through a multi-cell die to create a multi-celled honeycomb structure, and redrawing at least a portion of the honeycomb structure. - View Dependent Claims (11)
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12. A method for transferring individual droplets of liquid to a substrate, comprising:
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providing a reservoir device having a plurality of individual passages, each passage having an input end and an output end of smaller cross sectional area than the input end;
positioning a transfer device having an array of pins extending therefrom such that the pins face the output ends of the passages;
contacting the pins with liquid from the corresponding passages to transfer droplets of liquid from the corresponding passages to the pins; and
moving the pins relative to the substrate to transfer the droplets of liquid onto the substrate, wherein the providing step includes extruding material through a die thereby forming a block having the passages, and redrawing the block such that a circumference of the block is reduced.
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13. A method for transferring individual droplets of liquid to a substrate, comprising:
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providing a reservoir device having a plurality of individual passages, each passage having an input end and an output end of smaller cross sectional area than the input end;
positioning a transfer device having an array of pins extending therefrom such that the pins face the output ends of the passages;
contacting the pins with liquid from the corresponding passages to transfer droplets of liquid from the corresponding passages to the pins; and
moving the pins relative to the substrate to transfer the droplets of liquid onto the substrate, wherein the positioning step includes positioning the pins opposite the output ends of the passages, and wherein the method further comprises the step of positioning the substrate between the pins and the output ends of the passages prior to moving the pins relative to the substrate.
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14. An apparatus for transferring individual droplets of liquid to a substrate, comprising:
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a reservoir device having a plurality of individual passages, each of the passages having an input end and an output end of smaller cross sectional area than the input end; and
a transfer device having an array of pins extending therefrom, the transfer device positionable such that the pins face the output ends of the passages, the pins being adapted to receive liquid from corresponding passages for transfer of individual droplets of liquid to the substrate. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 32)
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15. An apparatus for transferring individual droplets of liquid to a substrate, comprising:
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a reservoir device having a plurality of individual passages, each passage being isolated from each other passage, each passage having an output end and decreasing in cross sectional area along at least a portion of the passage in a direction toward the output end; and
a transfer device having an array of pins extending therefrom, the transfer device positionable such that the pins face the output ends of the passages, the pins being adapted to receive liquid from corresponding passages and to transfer individual droplets of liquid to the substrate. - View Dependent Claims (24)
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16. An apparatus for transferring individual droplets of liquid to a substrate, comprising:
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a reservoir device having a plurality of individual passages, each passage having an output end, the density of the passages in the reservoir device increasing along at least a portion thereof in a direction toward the output ends of the passages; and
a transfer device having an array of pins extending therefrom, the transfer device positionable such that the pins face the output ends of the passages, the pins being adapted to receive liquid from corresponding passages for transfer of individual droplets of liquid to the substrate.
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33. An apparatus for transferring individual droplets of liquid to a substrate, comprising;
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a reservoir device having a plurality of individual passages, each of the passages having an input end and an output end of smaller cross sectional area than the input end; and
a transfer device having an array of pins extending therefrom, the transfer device positionable such that the pins face the output ends of the passages, the pins being adapted to receive liquid from corresponding passages for transfer of individual droplets of liquid to the substrate, wherein the reservoir device has an input and an output in the same plane as the input. - View Dependent Claims (34, 37, 38, 39, 40, 41)
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35. An apparatus for transferring individual droplets of liquid to a substrate, comprising:
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a reservoir device having a plurality of individual passages, each of the passages having an input end and an output end of smaller cross sectional area than the input end; and
transfer device having an array of pins extending therefrom, the transfer device positionable such that the pins face the output ends of the passages, the pins being adapted to receive liquid from corresponding passages for transfer of individual droplets of liquid to the substrate, wherein the reservoir device has an input and an output in a different plane from the input, and wherein the reservoir device has a substantially conical shape.
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36. An apparatus for transferring individual droplets of liquid to a substrate, comprising:
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a reservoir device having a plurality of individual passages, each of the passages having an input end and an output end of smaller cross sectional area than the input end; and
a transfer device having an array of pins extending therefrom, the transfer device positionable such that the pins face the output ends of the passages, the pins being adapted to receive liquid from corresponding passages for transfer of individual droplets of liquid to the substrate, wherein the reservoir device has an input and an output in a different plane from the input, and wherein the reservoir device has a substantially L-shape.
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42. An apparatus for transferring individual droplets of liquid to a substrate, comprising:
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a reservoir device having a plurality of individual passages, each of the passages having an input end and an output end of smaller cross sectional area than the input end; and
a transfer device having an array of pins extending therefrom, the transfer device positionable such that the pins face the output ends of the passages, the pins being adapted to receive liquid from corresponding passages for transfer of individual droplets of liquid to the substrate, wherein the passages are defined by redrawn capillary tubes.
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43. An apparatus for transferring individual droplets of liquid to a substrate, comprising:
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a reservoir device having a plurality of individual passages, each of the passages having an input end and an output end of smaller cross sectional area than the input end; and
a transfer device having an array of pins extending therefrom, the transfer device positionable such that the pins face the output ends of the passages, the pins being adapted to receive liquid from corresponding passages for transfer of individual droplets of liquid to the substrate, wherein the input end of each passage is in the same plane as the output end.
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44. An apparatus for transferring individual droplets of liquid to a substrate, comprising:
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a reservoir device having a plurality of individual passages, each passage having an output end and decreasing in cross sectional area along at least a portion of the passage in a direction toward the output end; and
a transfer device having an array of pins extending therefrom, the transfer device positionable such that the pins face the output ends of the passages, the pins being adapted to receive liquid from corresponding passages for transfer of individual droplets of liquid to the substrate, wherein the passages of the reservoir device have an input end in the same plane as the output end.
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45. An apparatus for transferring individual droplets of liquid to a substrate, comprising:
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a reservoir device having a plurality of individual passages, each of the passages having an input end and an output end of smaller cross sectional area than the input end; and
a transfer device having an array of pins extending therefrom;
the transfer device positionable such that the pins face the output ends of the passages, the pins being adapted to receive liquid from corresponding passages for transfer of individual droplets of liquid to the substrate,wherein the passages of the reservoir device form a substantially U-shape.
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46. An apparatus for transferring individual droplets of liquid to a substrate, comprising:
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a reservoir device having a plurality of individual passages, each passage having an output end and decreasing in cross sectional area along at least a portion of the passage in a direction toward the output end; and
a transfer device having an array of pins extending therefrom, the transfer device positionable such that the pins face the output ends of the passages, the pins being adapted to receive liquid from corresponding passages for transfer of individual droplets of liquid to the substrate, wherein the passages of the reservoir device have an input end in a different plane from the output end, and wherein the reservoir device has a substantially conical shape.
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47. An apparatus for transferring individual droplets of liquid to a substrate, comprising:
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a reservoir device having a plurality of individual passages, each passage having an output end and decreasing in cross sectional area along at least a portion of the passage in a direction toward the output end; and
a transfer device having an array of pins extending therefrom, the transfer device positionable such that the pins face the output ends of the passages, the pins being adapted to receive liquid from corresponding passages for transfer of individual droplets of liquid to the substrate, wherein the passages of the reservoir device have an input end in a different plane from, the output end, and wherein the reservoir device has a substantially L-shape.
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48. An apparatus for transferring individual droplets of liquid to a substrate, comprising:
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a reservoir device having a plurality of individual passages, each of the passages having an input end and an output end of smaller cross sectional area than the input end;
a transfer device having an array of pins extending therefrom, the transfer device positionable such that the pins face the output ends of the passages, the pins being adapted to receive liquid from corresponding passages for transfer of individual droplets of liquid to the substrate; and
a drive member adapted to move the pins relative to the corresponding passages, wherein the pins are mounted on a flexible mount, and the drive member is coupled to the flexible mount to flex the pins toward the output ends of the corresponding passages.
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49. A reservoir device for use in transferring a high density biological or chemical array of individual droplets of liquid to a substrate, comprising:
a plurality of passages collectively foaming a matrix having a plurality of rows and columns, each of the passages having an input end and an output end, the passages being spaced apart by a center-to-center distance measured from the center of one passage to the center of an adjacent passage, the center-to-center distance between adjacent passages being larger between respective input ends than between respective output ends. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67)
Specification