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IMPEDANCE MEASURING SYSTEM, IMPEDANCE MEASURING METHOD, AND SYSTEM FOR DETECTING SUBSTANCE BEING DETECTED NEW

外国特許コード F190009762
整理番号 S2017-0673-C0
掲載日 2019年5月7日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2018JP018427
国際公開番号 WO 2018207937
国際出願日 平成30年5月11日(2018.5.11)
国際公開日 平成30年11月15日(2018.11.15)
優先権データ
  • 特願2017-095715 (2017.5.12) JP
発明の名称 (英語) IMPEDANCE MEASURING SYSTEM, IMPEDANCE MEASURING METHOD, AND SYSTEM FOR DETECTING SUBSTANCE BEING DETECTED NEW
発明の概要(英語) A measuring system (1) is provided with a measuring kit (2), a laser light source (40), and a multimeter (90). The measuring kit (2) includes an optical heat generating member (110) which generates heat when irradiated with light, and electrodes (111, 112), and is configured to be capable of holding a dispersion liquid (D) in which a plurality of microobjects (M) are dispersed. The multimeter (90) is configured to measure an impedance between the electrode (111) and the electrode (112) in a state in which a plurality of the microobjects (M) have collected between the electrode (111) and the electrode (112) as a result of convection in the dispersion liquid (D) caused by the dispersion liquid (D) being heated by heat generated by the optical heat generating member (110) through irradiation of light from the laser light source (40), and in which a space between the electrode (111) and the electrode (112) has been bridged by the collection of the plurality of microobjects (M).
従来技術、競合技術の概要(英語) BACKGROUND ART
Cells, bacterial, viral DNA or the like, the size of the nanometer to micrometer order from the object having a fine (hereinafter, 'micro' is also referred to as) a method for detecting has been developed. For example as a method of detecting such as bacteria, culture method, PCR (Polymerase Chain Reaction) method and by ELIZA (Enzyme-Linked Immuno Sorbent Assay) method or the like of the various methods are already in practical use. By using these techniques, such as bacteria can be detected with high accuracy. However, these detection according to a method, generally a long time (for example 10 number of time-about several days) is required. Therefore, more rapid detection method is demanded.
On the other hand, measuring the impedance between the electrodes such as bacteria have been proposed a technique for detecting. Non-Patent Document 1 is for example, using a cathode and an anode directed to the induction run by the bacteria, bacterial induced to the anode to measure the impedance of the disclosed method. In this manner, the method disclosed in Non-Patent Document 1 is, the electrode (anode) of the concentrator to increase the density of bacteria in the vicinity of the electrode (cathode) as a function (for example non-patent document 1 and the gist of the reference 1).
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • OSAKA PREFECTURE UNIVERSITY
  • 発明者(英語)
  • Takuya Iida
  • Shizuo Futaba
  • Yasuyuki Yamamoto
  • Yoshimi Nishimura
  • Mamoru Tamura
国際特許分類(IPC)

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