Resonant sensor

Patent metadata

Field	Value
Publication number	US-11428669-B2
Application number	US-202016745374-A
Country	US
Kind code	B2
Filing date	Jan 17, 2020
Priority date	Jul 28, 2017
Publication date	Aug 30, 2022
Grant date	Aug 30, 2022

Abstract

An object of the present invention is to provide a resonant sensor having excellent sensitivity and selectivity with respect to a component to be detected that is contained at a low concentration in the system. A resonant sensor of the present invention has a receiving layer that contains a polymer having a repeating unit represented by Formula (1). In Formula, R1 represents an alkyl group. A plurality of R1's may be the same as or different from each other. R2 represents a hydrogen atom, an alkyl group, or an aryl group.

First claim

What is claimed is:

1. A resonant sensor for detecting a component contained at a low concentration, the resonant sensor comprising:
a receiving layer that contains a polymer having a repeating unit represented by Formula (1),

in Formula (1), R 1 represents an alkyl group, a plurality of R 1 's may be the same as or different from each other, and
R 2 represents a hydrogen atom, an alkyl group, or an aryl group.

2. The resonant sensor according to claim 1 , wherein the component to be detected by the resonant sensor comprises a hydrocarbon.

3. The resonant sensor according to claim 2 ,
wherein a number of carbon atoms of the hydrocarbon in the component to be detected by the resonant sensor is configured to be 1 to 20.

4. The resonant sensor according to claim 1 , wherein the component to be detected by the resonant sensor is configured to be contained in exhalation gas or skin gas.

5. The resonant sensor according to claim 1 , further comprising:
another receiving layer, in addition to the receiving layer, being configured to have different properties than a property of the receiving layer and being configured to detect different components than the component being detected using the receiving layer.

6. The resonant sensor according to claim 1 that detects a change in resonance frequency of the resonant sensor to detect a change in mass of the component being detected using a quartz crystal micro-balancing method.

7. The resonant sensor according to claim 2 , wherein the component to be detected by the resonant sensor is configured to be contained in exhalation gas or skin gas.

8. The resonant sensor according to claim 3 , wherein the component to be detected by the resonant sensor is configured to be contained in exhalation gas or skin gas.

9. The resonant sensor according to claim 2 , further comprising:
another receiving layer, in addition to the receiving layer, being configured to have different properties than a property of the receiving layer and being configured to detect different components than the component being detected using the receiving layer.

10. The resonant sensor according to claim 3 , further comprising:
another receiving layer, in addition to the receiving layer, being configured to have different properties than a property of the receiving layer and being configured to detect different components than the component being detected using the receiving layer.

11. The resonant sensor according to claim 4 , further comprising:
another receiving layer, in addition to the receiving layer, being configured to have different properties than a property of the receiving layer and being configured to detect different components than the component being detected using the receiving layer.

12. The resonant sensor according to claim 7 , further comprising:
another receiving layer, in addition to the receiving layer, being configured to have different properties than a property of the receiving layer and being configured to detect different components than the component being detected using the receiving layer.

13. The resonant sensor according to claim 8 , further comprising:
another receiving layer, in addition to the receiving layer, being configured to have different properties than a property of the receiving layer and being configured to detect different components than the component being detected using the receiving layer.

14. The resonant sensor according to claim 2 that detects a change in resonance frequency of the resonant sensor to detect a change in mass of the component being detected using a quartz crystal micro-balancing method.

15. The resonant sensor according to claim 3 that detects a change in resonance frequency of the resonant sensor to detect a change in mass of the component being detected using a quartz crystal micro-balancing method.

16. The resonant sensor according to claim 4 that detects a change in resonance frequency of the resonant sensor to detect a change in mass of the component being detected using a quartz crystal micro-balancing method.

17. The resonant sensor according to claim 5 that detects a change in resonance frequency of the resonant sensor to detect a change in mass of the component being detected using a quartz crystal micro-balancing method.

18. The resonant sensor according to claim 7 that detects a change in resonance frequency of the resonant sensor to detect a change in mass of the component being detected using a quartz crystal micro-balancing method.

19. The resonant sensor according to claim 8 that detects a change in resonance frequency of the resonant sensor to detect a change in mass of the component being detected using a quartz crystal micro-balancing method.

20. The resonant sensor according to claim 9 that detects a change in resonance frequency of the resonant sensor to detect a change in mass of the component being detected using a quartz crystal micro-balancing method.

Assignees

• Fujifilm Corp

Inventors

• Hironaka Koji
• Mochizuki Fumihiko
• Takaku Koji

Classifications

• C09D143/04

  Homopolymers or copolymers of monomers containing silicon · CPC title

• G01N29/022 Primary

  Fluid sensors based on microsensors, e.g. quartz crystal-microbalance [QCM], surface acoustic wave [SAW] devices, tuning forks, cantilevers, flexural plate wave [FPW] devices (microdevices per se B81B) · CPC title

• A61B5/443

  Evaluating skin constituents, e.g. elastin, melanin, water · CPC title

• G01N2291/0215

  Mixtures of three or more gases, e.g. air · CPC title

• G01N5/02 Primary

  by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content {(absorption bulbs B01D53/00)} · CPC title