| 摘要 |
PROBLEM TO BE SOLVED: To perform the analysis of a specific substance by eliminating the effect of the load weight received from a fluid such as air or a liquid to the utmost to detect a change in the weight of the specific substance with high precision. SOLUTION: This chemical sensor is equipped with: a cantilever 4 which has a predetermined thickness, is formed into a flat sheet shape having first and second main surfaces 2 and 3 and extends in one direction toward its leading end part from its base end part; a holder part 5 for supporting the base end side of the cantilever 4 in a cantilevered state; the sensor part 10 provided to the leading end side of the cantilever 4 and having a reaction film 6 bonded by the reaction of a specific substance DNA; an exciting means for vibrating the cantilever 4 in the direction along the first and second main surfaces 2 and 3 toward the short direction of crossing one direction in a predetermined resonance frequency; a measuring means for measuring the vibration state of the cantilever 4; and a detection means for detecting the specific substance DNA based on the measuring result of the measuring means. COPYRIGHT: (C)2006,JPO&NCIPI
|
