| 摘要 |
<P>PROBLEM TO BE SOLVED: To detect the base sequence of a DNA at a high speed. <P>SOLUTION: A DNA sequencer 10 is equipped with a solution reserving part 12 for reserving a solution 13 in which an ssDNA (a single-stranded DNA) 1 is suspended, a cylindrical part 15 formed in the interior of the solution reserving part 12 and composed of, e.g. a silicon nanowire, a pair of sensors 21 and 22 formed in the vicinity of an opening of the cylindrical part 15 and a pair of electrodes 25 and 26 for applying an AC electric field into the solution 13. In the DNA sequencer 10, the AC electric field is applied into the solution 13 to extend the DNA 1 and make the DNA 1 migrate into the silicon nanowire by electrophoresis. An electric change is detected with the sensors 21 and 22 when the DNA 1 passes through the interior of the silicon nanowire. The base sequence of the DNA 1 is detected on the basis of the change. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
