1. A nucleic acid detection sensor comprising:
a plurality of nucleic acid chain fixed electrodes to each of which a probe nucleic acid chain is fixed;
a counter electrode which is arranged opposite to the nucleic acid chain fixed electrode, wherein a current flows between the counter electrode and each nucleic acid chain fixed electrode; and
a reference electrode, wherein
the reference electrode and the nucleic acid chain fixed electrodes are formed on the same plane and the reference electrode is formed so as to surround the nucleic acid chain fixed electrode.
2. The nucleic acid detection sensor according to claim 1, wherein the counter electrode includes a plurality of counter electrodes and the plurality of counter electrodes are provided for the nucleic acid chain fixed electrodes, respectively.
3. The nucleic acid detection sensor according to claim 1, wherein
each of the nucleic acid chain fixed electrodes has a flat plane to which the probe nucleic acid is fixed,
the counter electrode has a flat plane, and
the flat plane of one of the nucleic acid chain fixed electrodes is arranged to face the flat plane of the counter electrode.
4. The nucleic acid detection sensor according to claim 1, wherein
the nucleic acid chain fixed electrodes and the counter electrode is arranged so that a test liquid can flow therebetween.
5. The nucleic acid detection sensor according to claim 1, wherein
a test liquid is filled between the nucleic acid chain fixed electrodes and the counter electrode so that a current change between the nucleic acid chain fixed electrodes and the counter electrode caused by a hybridization of the probe nucleic acid and a nucleic acid in the test liquid is detected.
6. The nucleic acid detection sensor according to claim 1, wherein
a duplex chain cognitive body is added to a test liquid filled between the nucleic acid chain fixed electrodes and the counter electrode, and
a current change between the nucleic acid chain fixed electrodes and the counter electrode caused by the duplex chain cognitive body is detected.
7. The nucleic acid detection sensor according to claim 1, wherein
the nucleic acid chain fixed electrodes are comb electrodes.
8. The nucleic acid detection sensor according to claim 1, further comprising
a plurality of reference electrodes provided for the nucleic acid chain fixed electrodes, respectively.
9. The nucleic acid detection sensor according to claim 8,
wherein the counter electrode includes a plurality of counter electrodes and the plurality of counter electrodes are provided for the nucleic acid chain fixed electrodes, respectively.
10. The nucleic acid detection sensor according to claim 1, wherein
the nucleic acid chain fixed electrodes and the reference electrode are comb electrodes, and the nucleic acid chain fixed electrodes and the reference electrode are arranged to be mutually engaged.
11. A nucleic acid detection sensor comprising:
a plurality of nucleic acid chain fixed electrodes to each of which a probe nucleic acid chain is fixed;
counter electrodes which are provided for respective of the nucleic acid chain fixed electrodes, a current flowing between each nucleic acid chain fixed electrodes and the respective counter electrode; and
a plurality of reference electrodes provided for respective of the nucleic acid chain fixed electrodes,
wherein the nucleic acid chain fixed electrode are comb electrodes.
12. The nucleic acid detection sensor according to claim 11, wherein
the reference electrode are comb electrode, the nucleic acid chain fixed electrodes and the reference electrode are arranged to be mutually engaged.
13. The nucleic acid detection sensor according to claim 11, wherein
the counter electrode is comb electrode, the nucleic acid chain fixed electrodes and the counter electrode are arranged to be mutually engaged.
14. The nucleic acid detection sensor according to claim 11, wherein the nucleic acid chain fixed electrodes and the counter electrode are exposed to a test liquid, and a current change between the nucleic acid chain fixed electrodes and the counter electrode caused by a hybridization of the probe nucleic acid and a nucleic acid in the test liquid is detected.
15. The nucleic acid detection sensor according to claim 11, wherein a duplex chain cognitive body is added to the test liquid, and a current change between the nucleic acid chain fixed electrodes and the counter electrode caused by the duplex chain cognitive body is detected.
16. A nucleic acid detection sensor comprising:
a plurality of nucleic acid chain fixed electrodes to each of which a probe nucleic acid chain is fixed;
counter electrodes which are provided for respective of the nucleic acid chain fixed electrodes, a current flowing between each nucleic acid chain fixed electrode and the respective counter electrode;
a plurality of reference electrodes provided for respective of the nucleic acid chain fixed electrodes,
a first amplifier which inputs a signal from the reference electrode or a scanning line;
a second amplifier configured to input a reference potential to apply a predetermined potential to the counter electrode; and
a reference resistor connected between an output side of the first amplifier and the reference potential.
17. The nucleic acid detection sensor according to claim 16, wherein the nucleic acid chain fixed electrodes and the counter electrode are exposed to a test liquid, and a current change between the nucleic acid chain fixed electrodes and the counter electrode caused by a hybridization of the probe nucleic acid and a nucleic acid in the test liquid is detected.
18. The nucleic acid detection sensor according to claim 17, wherein a duplex chain cognitive body is added to the test liquid, and a current change between the nucleic acid chain fixed electrodes and the counter electrode caused by the duplex chain cognitive body is detected.
19. A nucleic acid detection sensor comprising:
a plurality of nucleic acid chain fixed electrodes to each of which a probe nucleic acid chain is fixed;
a counter electrode, a current flowing between each of nucleic acid chain fixed electrodes and the counter electrode;
a plurality of reference electrodes provided for the nucleic acid chain fixed electrodes, respectively,
wherein the counter electrode and the nucleic acid chain fixed electrodes are formed on a same plane and the counter electrode is formed so as to surround the nucleic acid chain fixed electrodes, and a duplex chain cognitive body is added to the test liquid, and a current change between the nucleic acid chain fixed electrodes and the counter electrode caused by the duplex chain cognitive body is detected.
20. The nucleic acid detection sensor according to claim 19, wherein the nucleic acid chain fixed electrodes and the counter electrode are exposed to a test liquid, and a current change between the nucleic acid chain fixed electrodes and the counter electrode caused by a hybridization of the probe nucleic acid and a nucleic acid in the test liquid is detected.
21. The nucleic acid detection sensor according to claim 20, wherein a duplex chain cognitive body is added to the test liquid, and a current change between the nucleic acid chain fixed electrodes and the counter electrode caused by the duplex chain cognitive body is detected.
22. A nucleic acid detection sensor comprising:
a plurality of nucleic acid chain fixed electrodes to each of which a probe nucleic acid chain is fixed;
a plurality of counter electrodes provided for respective of the nucleic acid chain fixed electrodes, a current flowing between each of the nucleic acid chain fixed electrodes and the respective counter electrode; and
a plurality of reference electrodes provided for respective of the nucleic acid chain fixed electrodes,
wherein the reference electrode and the nucleic acid chain fixed electrodes are formed on a same plane and the reference electrode is formed so as to surround the nucleic acid chain fixed electrode.
23. The nucleic acid detection sensor according to claim 22, wherein the nucleic acid chain fixed electrodes and the counter electrode are exposed to a test liquid and a current change between the nucleic acid chain fixed electrodes and the counter electrode caused by a hybridization of the probe nucleic acid and a nucleic acid in the test liquid is detected.
24. The nucleic acid detection sensor according to claim 23, wherein a duplex chain cognitive body is added to the test liquid, and a current change between the nucleic acid chain fixed electrodes and the counter electrode caused by the duplex chain cognitive body is detected.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A yoga block, comprising:
first and second yoga wedges, wherein the first and second yoga wedges are identical in shape and size;
first and second holes running entirely through the first and second yoga wedges, respectively, wherein the first and second holes have a same diameter; and
a rod having a diameter approximately equal to the diameter of the first and second holes;
wherein when the first and second yoga wedges are placed together with their diagonal faces touching and the first and second holes are axially aligned, the rod fits in the first and second holes to retain the first and second wedges together forming the yoga block.
2. A yoga block according to claim 1, wherein the yoga block is shaped as a rectangular solid with two parallel major faces and two parallel minor faces, and wherein the first and second holes penetrate the two major faces.
3. A yoga block according to claim 1, wherein the yoga block is shaped as a rectangular solid with two parallel major faces and two parallel minor faces, and wherein the first and second holes penetrate the two minor faces.
4. A yoga block according to claim 1, wherein the rod and the first and second yoga wedges are made of the same material.
5. A yoga block according to claim 1, wherein the rod and the first and second yoga wedges are not made of the same material.
6. A yoga block according to claim 5, wherein the rod includes first, second, and third sections, wherein the second section is between the first and third sections, and wherein the first and third sections are of the same material as the first and second yoga wedges.
7. A yoga block according to claim 6, wherein the second section is made of plastic.
8. A method for making a yoga block, comprising the steps of:
forming first and second yoga wedges, wherein the first and second yoga wedges are identical in shape and size;
forming first and second holes running entirely through the first and second yoga wedges, respectively, wherein the first and second holes have a same diameter; and
forming a rod having a diameter approximately equal to the diameter of the first and second holes;
wherein when the first and second yoga wedges are placed together with their diagonal faces touching and the first and second holes are axially aligned, the rod fits in the first and second holes to retain the first and second wedges together forming the yoga block.
9. A method according to claim 8, wherein the yoga block is shaped as a rectangular solid with two parallel major faces and two parallel minor faces, and wherein the first and second holes penetrate the two major faces.
10. A method according to claim 8, wherein the yoga block is shaped as a rectangular solid with two parallel major faces and two parallel minor faces, and wherein the first and second holes penetrate the two minor faces.
11. A method according to claim 8, wherein the rod and the first and second yoga wedges are made of the same material.
12. A method according to claim 8, wherein the rod and the first and second yoga wedges are not made of the same material.
13. A method according to claim 12, wherein the rod includes first, second, and third sections, wherein the second section is between the first and third sections, and wherein the first and third sections are of the same material as the first and second yoga wedges.
14. A method according to claim 13, wherein the second section is made of plastic.