WO2022030448A1 - 生体信号センシング電極 - Google Patents

生体信号センシング電極 Download PDF

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Publication number
WO2022030448A1
WO2022030448A1 PCT/JP2021/028615 JP2021028615W WO2022030448A1 WO 2022030448 A1 WO2022030448 A1 WO 2022030448A1 JP 2021028615 W JP2021028615 W JP 2021028615W WO 2022030448 A1 WO2022030448 A1 WO 2022030448A1
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WIPO (PCT)
Prior art keywords
polymer
sensing electrode
mass
signal sensing
particles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/028615
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English (en)
French (fr)
Japanese (ja)
Inventor
宏介 杉浦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to CN202180049694.6A priority Critical patent/CN115885012B/zh
Priority to JP2022541536A priority patent/JP7448013B2/ja
Publication of WO2022030448A1 publication Critical patent/WO2022030448A1/ja
Priority to US18/160,326 priority patent/US20230165500A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/263—Bioelectric electrodes therefor characterised by the electrode materials
    • A61B5/268—Bioelectric electrodes therefor characterised by the electrode materials containing conductive polymers, e.g. PEDOT:PSS polymers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/10—Metal compounds
    • C08K3/14—Carbides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/263—Bioelectric electrodes therefor characterised by the electrode materials

Definitions

  • a atom layer a layer of A atoms
  • 3C 2 layer a layer next to the layer of the third Ti atom
  • the A atom layer (and possibly part of the Ti atom) is removed by selectively etching (removing and possibly layering) the A atom (and possibly part of the Ti atom) from the MAX phase.
  • etching solution usually, but not limited to, an aqueous solution of fluoroacid is used
  • MXene may contain a relatively small amount of residual A atom, for example, 10% by mass or less with respect to the original A atom.
  • the residual amount of A atom can be preferably 8% by mass or less, more preferably 6% by mass or less. However, even if the residual amount of A atom exceeds 10% by mass, there may be no problem depending on the use and conditions of use of the paste (and the conductive film obtained thereby).
  • MXene layers 7a and 7b are also represented as "Ti 3 C 2 T x ", and x is an arbitrary number.
  • MXene10 even if the MXene layers are individually separated and exist in one layer (single-layer structure shown in FIG. 2A, so-called single-layer MXene10a), a plurality of MXene layers are separated from each other. It may be a laminated body (multilayer structure shown in FIG. 2B, so-called multi-layer MXene10b) or a mixture thereof.
  • It may be 8 nm or more and 5 nm or less, more particularly about 1 nm, and the total number of layers may be 2 or more, but for example, 50 or more and 100,000 or less, particularly 1,000 or more and 20,000 or less, and the thickness in the stacking direction.
  • Is for example, 0.1 ⁇ m or more and 200 ⁇ m or less, particularly 1 ⁇ m or more and 40 ⁇ m or less, and the maximum dimension in a plane (two-dimensional sheet surface) perpendicular to the stacking direction is, for example, 0.1 ⁇ m or more and 100 ⁇ m or less, particularly 1 ⁇ m or more and 20 ⁇ m or less.
  • the biological signal sensing electrode of the present embodiment is not limited to a specific form as long as the conductive composite material is provided at least on the contact surface with the subject. As described above, the conductive composite material can be considered from a solid state to a flexible and soft state.
  • FIGS. 4 (c) and 6 (c) show a conductive composite in which Ti 3 C 2 T x is concentrated on the contact surface of the conventional snap-type electrodes 24A and 24B made of a conductive material with a subject.
  • the conductive material constituting the snap type electrodes 24A and 24B the same material as the base materials 23A and 23B formed of the conductive material can be used. According to the above configuration, since a versatile extraction electrode is used, it is possible to provide a biological signal sensing electrode at low cost and with high sensitivity.
  • the conductivity of the MXene / Polymer Composite Material Film was determined.
  • the surface resistivity ( ⁇ ) and the thickness ( ⁇ m) were measured at three points per sample.
  • the value obtained by multiplying the thickness [cm] and the surface resistivity [ ⁇ / ⁇ ] is the volume resistivity [ ⁇ . Cm], and the conductivity [S / cm] was obtained as the reciprocal of the reciprocal.
  • the arithmetic mean values of the three conductivitys thus obtained were adopted.
  • the surface resistivity was measured by the 4-probe method.
  • a low resistivity meter (Roresta AX MCP-T370 manufactured by Mitsubishi Chemical Analytical Corporation) was used for measuring the surface resistivity.
  • the composite material of water-soluble polyurethane, polyvinyl alcohol, and sodium alginate and Ti 3 C 2 T x showed a sufficiently high conductivity of 3000 S / cm or more.
  • the reason is considered to be that the polymer constituting the composite material for which these judgments were ⁇ has many functional groups contributing to the hydrogen bond with Ti 3 C 2 T x .

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
PCT/JP2021/028615 2020-08-03 2021-08-02 生体信号センシング電極 Ceased WO2022030448A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202180049694.6A CN115885012B (zh) 2020-08-03 2021-08-02 生物体信号感测电极
JP2022541536A JP7448013B2 (ja) 2020-08-03 2021-08-02 生体信号センシング電極
US18/160,326 US20230165500A1 (en) 2020-08-03 2023-01-27 Biosignal sensing electrode

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020131864 2020-08-03
JP2020-131864 2020-08-03

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/160,326 Continuation US20230165500A1 (en) 2020-08-03 2023-01-27 Biosignal sensing electrode

Publications (1)

Publication Number Publication Date
WO2022030448A1 true WO2022030448A1 (ja) 2022-02-10

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Family Applications (1)

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PCT/JP2021/028615 Ceased WO2022030448A1 (ja) 2020-08-03 2021-08-02 生体信号センシング電極

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US (1) US20230165500A1 (https=)
JP (1) JP7448013B2 (https=)
CN (1) CN115885012B (https=)
WO (1) WO2022030448A1 (https=)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024262455A1 (ja) * 2023-06-20 2024-12-26 株式会社村田製作所 電極
WO2025127027A1 (ja) * 2023-12-11 2025-06-19 株式会社村田製作所 電極
EP4503059A4 (en) * 2022-05-18 2025-07-30 Murata Manufacturing Co Film and electrode
WO2025173769A1 (ja) * 2024-02-16 2025-08-21 株式会社村田製作所 生体信号センシング電極

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019055784A1 (en) * 2017-09-15 2019-03-21 The Trustees Of The University Of Pennsylvania IMPLANTABLE DEVICES USING 2D METALLIC CARBIDES AND NITRIDES (MXENES)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016208190A1 (ja) * 2015-06-24 2016-12-29 日本ゼオン株式会社 電気化学素子電極用組成物、電気化学素子用電極および電気化学素子、並びに電気化学素子電極用組成物の製造方法
JP2017042300A (ja) * 2015-08-25 2017-03-02 国立大学法人山梨大学 導電性組成物、導電性部材及び生体センシング用デバイス
KR20200102535A (ko) * 2016-04-22 2020-08-31 한국과학기술연구원 Emi 차폐용 2차원 금속 탄화물, 질화물 및 탄질화물 필름 및 복합체
WO2020004173A1 (ja) * 2018-06-28 2020-01-02 株式会社村田製作所 電気化学キャパシタ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019055784A1 (en) * 2017-09-15 2019-03-21 The Trustees Of The University Of Pennsylvania IMPLANTABLE DEVICES USING 2D METALLIC CARBIDES AND NITRIDES (MXENES)

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
DRISCOLL NICOLETTE, RICHARDSON ANDREW G., MALESKI KATHLEEN, ANASORI BABAK, ADEWOLE OLADAYO, LELYUKH PAVEL, ESCOBEDO LILIA, CULLEN : "Two-Dimensional Ti 3 C 2 MXene for High-Resolution Neural Interfaces", ACS NANO, AMERICAN CHEMICAL SOCIETY, US, vol. 12, no. 10, 23 October 2018 (2018-10-23), US , pages 10419 - 10429, XP055893795, ISSN: 1936-0851, DOI: 10.1021/acsnano.8b06014 *
LI LA, FU XIYAO, CHEN SHUAI, UZUN SIMGE, LEVITT ARIANA S., SHUCK CHRISTOPHER E., HAN WEI, GOGOTSI YURY: "Hydrophobic and Stable MXene–Polymer Pressure Sensors for Wearable Electronics", APPLIED MATERIALS & INTERFACES, AMERICAN CHEMICAL SOCIETY, US, vol. 12, no. 13, 1 April 2020 (2020-04-01), US , pages 15362 - 15369, XP055893780, ISSN: 1944-8244, DOI: 10.1021/acsami.0c00255 *
SHARMA SUDEEP, CHHETRY ASHOK, SHARIFUZZAMAN MD, YOON HYOSANG, PARK JAE YEONG: "Wearable Capacitive Pressure Sensor Based on MXene Composite Nanofibrous Scaffolds for Reliable Human Physiological Signal Acquisition", APPLIED MATERIALS & INTERFACES, AMERICAN CHEMICAL SOCIETY, US, vol. 12, no. 19, 13 May 2020 (2020-05-13), US , pages 22212 - 22224, XP055893765, ISSN: 1944-8244, DOI: 10.1021/acsami.0c05819 *
ZHENG LING, CHANG E. REN, MENG-QIANG ZHAO, JIAN YANG, JAMES M. GIAMMARCO, JIESHAN QIU, MICHEL W. BARSOUM, YURY GOGOTSI: "Flexible and conductive MXene films and nanocomposites with high capacitance", PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES, NATIONAL ACADEMY OF SCIENCES, vol. 111, no. 47, 25 November 2014 (2014-11-25), pages 16676 - 16681, XP055559709, ISSN: 0027-8424, DOI: 10.1073/pnas.1414215111 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4503059A4 (en) * 2022-05-18 2025-07-30 Murata Manufacturing Co Film and electrode
WO2024262455A1 (ja) * 2023-06-20 2024-12-26 株式会社村田製作所 電極
WO2025127027A1 (ja) * 2023-12-11 2025-06-19 株式会社村田製作所 電極
WO2025173769A1 (ja) * 2024-02-16 2025-08-21 株式会社村田製作所 生体信号センシング電極

Also Published As

Publication number Publication date
CN115885012A (zh) 2023-03-31
US20230165500A1 (en) 2023-06-01
CN115885012B (zh) 2025-08-08
JP7448013B2 (ja) 2024-03-12
JPWO2022030448A1 (https=) 2022-02-10

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