Probe-immobilized reaction arrays

• US 20030152957A1
• Filed: 08/08/2002
• Published: 08/14/2003
• Est. Priority Date: 02/12/2002
• Status: Abandoned Application

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Optical Corporation Limited (Olympus Corporation)
• Inventors: Shinohara, Etsuo, Takahashi, Takeo, Morimoto, Nobuhiko
• Application Number:
  US10/215,062
• Publication Number:
  US 20030152957A1
• Time in Patent Office: Days
• US Class Current: 435/6
• CPC Class Codes: G01N 33/54366 Apparatus specially adapted for solid-phase testing
• CPC Class Codes: G01N 33/54386 Analytical elements

Abstract

The present invention provides a probe-immobilized reaction array, comprising a substrate, first to nth reaction portions comprising bores formed independently in the inside of the substrate wherein n is an integer of 2 or more, two openings open from each of the first to nth reaction portions to a first face of the substrate, and a probe group consisting of a 1st probe group immobilized on at least one face of the first reaction portion to an nth probe group immobilized on at least one face of the nth reaction portion wherein n is an integer of 2 or more, wherein the first to nth probe groups comprise plural kinds of probes respectively, and the optimum reaction conditions of the probes are complete for each of the reaction portions.

Claims

1. A probe-immobilized reaction array, comprising:

a substrate;

1st to nth reaction portions comprising bores formed independently in the inside of the substrate wherein n is an integer of 2 or more;

2 openings open from each of the 1st to nth reaction portions to a first face of the substrate; and

a probe group consisting of a first probe group immobilized on at least one face of the first reaction portion to an nth probe group immobilized on at least one face of the nth reaction portion wherein n is an integer of 2 or more,

wherein the first to nth probe groups comprise plural kinds of probes, respectively, and the optimum reaction conditions of the probes are complete for each of the reaction portions.

2. A probe-immobilized reaction array according to claim 1, wherein at least two groups out of the 1st to nth probe groups (n:

an integer of 2 or more) have the optimum reaction conditions different from each other.

3. A probe-immobilized reaction array according to claim 1, wherein the reaction portion is in the form of a capillary.

4. A probe-immobilized reaction array according to claim 3, wherein the opening is open from both ends in the longitudinal direction of the capillary-shaped reaction portion to the first face of the substrate.

5. A probe-immobilized reaction array according to claim 1, wherein the reaction portion is in the form of a well.

6. A probe-immobilized reaction array according to claim 1, wherein the probe is nucleic acid.

7. A probe-immobilized reaction array according to claim 6, wherein the complete optimum reaction conditions are that Tm is similar.

8. A probe-immobilized reaction array according to claim 7, wherein the difference in Tm among all probes arranged in the 1st reaction portion is ±

2°

C.

9. A probe-immobilized reaction array according to claim 7, wherein the difference in Tm among all probes arranged in the 1st reaction portion is ±

1°

C.

10. A probe-immobilized reaction array according to claim 1, wherein the probe is selected from the group consisting of a peptide, a protein, an antigen and an antibody.

11. A probe-immobilized reaction array according to claim 10, wherein the complete optimum reaction conditions are that all probes arranged in one reaction portion have similar optimum pH and salt concentration for maintaining the activity of probes arranged in one reaction portion.

12. A reaction method of using the probe-immobilized reaction array described in claim 1, comprising:

(1) adding test samples to the 1st to nth reaction portions arranged in the probe-immobilized reaction array described in claim 1;

and

(2) reacting the probe groups with the target substance while the reaction conditions in the 1st to nth reaction portions are regulated depending on the optimum reaction conditions in each reaction portion.

13. A method according to claim 12, wherein the reaction conditions are regulated by using a composition for achieving the optimum reaction conditions for each probe group, as the composition of a solution present in the reaction portions in carrying out the reaction (2) above.

14. A method according to claim 12, wherein the regulation of the reaction conditions is conducted by selecting at least one means selected from the group consisting of regulation of the temperature and the salt concentration in the reaction portions in conducting the reaction in (2) above, regulation of the reaction time in conducting the reaction in (2) above, and regulation of a combination of the above.

15. A method according to claim 12, wherein the reaction in (2) above is followed by washing each of the reaction portions with a solution having a composition for satisfying the optimum reaction conditions for each probe group.

16. A method of detecting a target substance with the probe-immobilized reaction array described in claim 1, comprising:

(1) adding test samples to the 1st to nth reaction portions arranged in the probe-immobilized reaction array described in claim 1;

(2) reacting the probe groups with the target substance while the reaction conditions in the 1st to nth reaction portions are regulated depending on the optimum reaction conditions in each reaction portion; and

(3) detecting the bonding of the probe to the target substance thereby detecting the presence of the target substance in the test sample.

17. A method according to claim 16, wherein the reaction in (2) above is followed by washing each of the reaction portions with a solution having a composition for satisfying the optimum reaction condition for the probe groups.

18. A method of obtaining information on a target substance in an individual by using the probe-immobilized reaction array of claim 1, comprising:

(1) obtaining test samples from individuals;

(2) adding the test samples to the 1st to nth reaction portions arranged in the probe-immobilized reaction array described in claim 1;

(3) reacting the probe groups with the target substance while the reaction conditions in the 1st to nth reaction portions are regulated depending on the optimum reaction conditions in each reaction portion;

(4) detecting the bonding of the probe to the target substance thereby detecting the presence of the target substance in the test sample; and

(5) obtaining information on the target substance in the individuals, from the results obtained by the detection described in (4) above.

19. A method of obtaining information on a target substance in an individual by using the probe-immobilized reaction array described in claim 1, comprising:

(1) obtaining test samples from individuals;

(2) adding the test samples obtained in (1) above to a plurality of reaction portions arranged in at least one probe-immobilized reaction array;

(3) reacting the probe groups with the target substance while the reaction conditions in the reaction portions in (2) above are regulated depending on the optimum reaction conditions in each reaction portion;

(4) detecting the bonding of the probe to the target substance thereby detecting the presence of the target substance in the test sample;

(5) analyzing and/or outputting the results obtained by the detection in (4) above while taking the respective reaction conditions into consideration; and

(6) analyzing and/or outputting the results in (5) above thereby obtaining information on the target substance in the individuals.

20. A method of obtaining information on a target substance in an individual by using the probe-immobilized reaction array described in claim 6, comprising:

(1) obtaining nucleic acid samples from individuals;

(2) labeling nucleic acids in the nucleic acid samples;

(3) adding the nucleic acid samples labeled in (2) above to the 1st to nth reaction portions arranged in the probe-immobilized reaction array described in claim 6;

(4) reacting the probe groups with the target substance while the reaction conditions in the 1st to nth reaction portions are regulated depending on the optimum reaction conditions in each reaction portion;

(5) detecting the bonding of the probe to the target substance thereby detecting the presence of the target substance in the test sample; and

(6) obtaining information on the gene in the individuals, from the results obtained by the detection in (5) above.