PCR and hybridization methods utilizing electrostatic transportation and devices therefor
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Abstract
To provide a PCR method utilizing electrostatic transportation which allows separate control of individual DNA-containing droplets by accurately transporting the droplets, suitably controlling the temperature thereof and allowing a primer to react therewith; a hybridization method utilizing electrostatic transportation which allows rapid and easy detection of hybridization; and devices therefor.
A biological sample (droplets containing DNA and primer) (9) is prepared in a chemically inert liquid layer (8), is electrostatically transported by the action of an electrostatic transportation plate (1) with electrostatic transportation electrodes (2) and is heated at a predetermined position of the electrostatic transportation plate (1), thus carrying out PCR.
69 Citations
21 Claims
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1-9. -9. (canceled)
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10. A device for carrying out PCR utilizing electrostatic transportation, comprising:
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(a) a chemically inert liquid layer carrying droplets of biological sample containing polymerase;
(b) an electrostatic transportation plate covered with the chemically inert liquid layer and having electrodes with a water-repellent coating on a surface thereof (c) means for electrostatically transporting droplets of biological sample by the action of the electrostatic transportation plate; and
(d) means for controlling the temperatures of the droplets of biological sample at predetermined positions of the electrostatic transportation plate. - View Dependent Claims (11, 12, 13, 14, 15, 20)
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16. (canceled)
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17. A device for carrying out PCR utilizing electrostatic transportation, comprising:
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(a) an electrostatic transportation plate with electrodes, the electrodes each having a water-repellent coating on a surface thereof;
(b) a chemically inert liquid layer carrying droplets containing DNA and a primer;
(c) means for heating the droplets containing DNA and primer at predetermined positions;
(d) means for electrostatically transporting the droplets containing DNA and primer by the action of the electrostatic transportation plate;
(e) means for heating and thermally denaturing the DNA at a first position of the electrostatic transportation plate;
(f) means for annealing primer to the DNA, the primer being capable of reacting with the DNA; and
(g) means for elongating the annealed DNA. - View Dependent Claims (18)
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19. (canceled)
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21-23. -23. (canceled)
Specification