CN114052737A - Flexible electrode connected with concave honeycomb negative Poisson ratio structure and application - Google Patents
Flexible electrode connected with concave honeycomb negative Poisson ratio structure and application Download PDFInfo
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- 239000000758 substrate Substances 0.000 claims abstract description 28
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 6
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- -1 polydimethylsiloxane Polymers 0.000 claims description 3
- 238000007650 screen-printing Methods 0.000 claims description 3
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims 2
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 claims 1
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 16
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000003745 diagnosis Methods 0.000 abstract description 4
- 230000036541 health Effects 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 239000010931 gold Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- A—HUMAN NECESSITIES
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- 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
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
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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
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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
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/291—Bioelectric electrodes therefor specially adapted for particular uses for electroencephalography [EEG]
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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
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/296—Bioelectric electrodes therefor specially adapted for particular uses for electromyography [EMG]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/16—Details of sensor housings or probes; Details of structural supports for sensors
- A61B2562/164—Details of sensor housings or probes; Details of structural supports for sensors the sensor is mounted in or on a conformable substrate or carrier
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Abstract
The invention relates to a flexible electrode connected with an inwards concave honeycomb negative Poisson ratio structure and application thereof, and belongs to the technical field of flexible electronics. The flexible substrate comprises a flexible substrate layer and a conductive layer, wherein the conductive layer is printed on the upper surface of the flexible substrate layer, the conductive layer is composed of a 5 x 5 square array unit, the middle of the square array unit is connected through a 4 x 4 negative poisson ratio structure II, the periphery of the square array unit is connected through a negative poisson ratio structure III, and the lower surface of the flexible substrate layer is engraved with a negative poisson ratio structure I. The invention has the advantages of novel structure, adoption of a structure with negative Poisson's ratio characteristic, capability of greatly bearing various deformations such as tension, compression, bending and distortion, long service life and good conductivity through the flexible substrate layer and the conductive layer, stable performance and long service life, can be used for detecting electrophysiological signals such as electrocardiogram, electromyogram, electroencephalogram and the like, and has important significance for health monitoring and medical diagnosis.
Description
Technical Field
The invention belongs to the technical field of flexible electronics, and particularly relates to a flexible electrode connected with an inwards concave honeycomb negative Poisson's ratio structure and application thereof.
Background
The flexible electrode is a flexible electronic device which has unique flexibility and ductility, is easy to manufacture in batches and at low cost, is widely applied to detection of electrical physiological signals such as Electrocardiogram (ECG), Electromyogram (EMG), electroencephalogram (EEG) and the like, and has important significance in human health monitoring and medical diagnosis.
The prior flexible electrode structure mostly adopts a flexible substrate layer without a special structure and a conductive layer with a bridge structure to improve the flexibility and the ductility of the electrode. However, the flexible electrode does not consider whether the conductive layer still maintains the performance under the high-strength stretching and bending deformation of the flexible substrate layer, and particularly the requirement on the conductive performance is not considered. However, the conductive layers in current flexible electrodes often fail to meet these requirements. This is mainly because the metal coating easily falls off or microcracks are generated under repeated tensile and bending loads, thereby affecting the conductivity of the flexible electrode. Therefore, how to improve the stability of the conductive layer on the flexible substrate is a great problem to be solved urgently.
Disclosure of Invention
The invention provides a flexible electrode connected with an inwards concave honeycomb negative Poisson ratio structure and application thereof, and aims to solve the problems that in actual use, the flexible electrode fails under high-strength stretching and bending states, and particularly a conductive layer falls off or microcracks are generated under the action of repeated stretching and bending loads, so that the conductive performance is seriously influenced.
The technical scheme adopted by the invention is as follows: the flexible substrate comprises a flexible substrate layer and a conductive layer, wherein the conductive layer is printed on the upper surface of the flexible substrate layer, the conductive layer is composed of a 5 x 5 square array unit, the middle of the square array unit is connected through a 4 x 4 negative poisson ratio structure II, the periphery of the square array unit is connected through a negative poisson ratio structure III, and the lower surface of the flexible substrate layer is engraved with a negative poisson ratio structure I.
The first negative Poisson ratio structure photoetched on the lower surface of the flexible substrate layer adopts a first honeycomb structure with two concave arc edges, and the first honeycomb structure with two concave arc edges is connected through a connecting rib.
The thickness of the flexible substrate layer is 3.5-4.5 um, and polydimethylsiloxane PDMS is adopted.
The middle negative Poisson ratio structure II of the conducting layer adopts a four-arc-edge concave honeycomb structure.
The periphery of the conducting layer is connected with a negative Poisson ratio structure III, and a honeycomb structure II with two arc sides concave inwards is adopted.
The conducting layer is prepared by adopting screen printing, and the thickness of the conducting layer 2 is 150-250 nm.
The side length of each square in the 5 multiplied by 5 square array unit of the conducting layer is 1.2-1.8 mm, and the distance between every two squares is 1.2-1.8 mm.
The widths of all arc-shaped connecting positions of the negative Poisson ratio structure II and the negative Poisson ratio structure III are 0.15-0.20 mm.
The widths of all arc-shaped connecting parts of the first negative Poisson ratio structure are 0.15-0.20 mm.
The invention discloses application of a flexible electrode connected with an inwards concave honeycomb negative Poisson ratio structure in electrophysiological signal detection.
The invention has the advantages of novel structure, adoption of a structure with negative Poisson ratio characteristic, capability of greatly bearing various deformations such as tension, compression, bending, distortion and the like, long service life and good electric conductivity through the characteristics of the flexible substrate layer and the conductive layer, and solves the problems that in actual use, the flexible electrode fails under the high-strength tension and bending states, and particularly the conductive layer falls off or generates micro cracks under the action of repeated tension and bending loads, thereby seriously affecting the electric conductivity.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a rear view of the present invention;
FIG. 3 is a schematic structural diagram of a second negative Poisson ratio structure of the present invention;
FIG. 4 is a schematic structural view of a third negative Poisson ratio structure of the present invention;
FIG. 5 is a comparison graph of tensile stress of the flexible electrode of the present invention and a prior island-bridge structure;
FIG. 6 is a curve comparing bending stress of flexible electrodes in the island bridge structure of the present invention with that of the prior art;
FIG. 7 is a comparison of the fatigue cycle times of the flexible electrode of the present invention and the existing island bridge structure.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the drawings are provided solely for the purpose of providing a further understanding of the invention by those skilled in the art and are not intended to limit the invention in any way.
As shown in fig. 1 and 2, the flexible printed circuit board comprises a flexible substrate layer 1 and a conductive layer 2, the conductive layer 2 is printed on an upper surface 102 of the flexible substrate layer, the conductive layer 2 is composed of a 5 × 5 square array unit 201, the middle of the square array unit 201 is connected through a 4 × 4 negative poisson ratio structure two 202, the periphery of the square array unit 201 is connected through a negative poisson ratio structure three 203, and a negative poisson ratio structure one 10101 is photoetched on a lower surface 101 of the flexible substrate layer.
As shown in fig. 2, the first negative poisson ratio structure 10101 photoetched on the lower surface 101 of the flexible substrate layer adopts a first two-arc-edge concave honeycomb structure, the structure has a negative poisson ratio characteristic, the tensile resistance and bending resistance of the flexible substrate layer are improved by the characteristic, the flexible electrode is suitable for high-strength stretching and bending conditions, and the first two-arc-edge concave honeycomb structure 10102 is connected with each other.
The thickness of the flexible substrate layer 1 is 3.5-4.5 um, and in order to ensure the flexibility and stretchability of the flexible electrode, the chemically stable and flexible and stretchable Polydimethylsiloxane (PDMS) is adopted, so that the flexible electrode has excellent biocompatibility.
As shown in fig. 3, the second negative poisson's ratio structure 202 in the middle of the conductive layer 2 adopts a four-arc-edge concave honeycomb structure;
as shown in fig. 4, the periphery of the conductive layer 2 is connected with a third negative poisson's ratio structure 203, and a second concave honeycomb structure with two arc edges is adopted;
the negative Poisson ratio structure II and the negative Poisson ratio structure III have the negative Poisson ratio characteristic, the characteristic is large in indentation resistance and good in tensile property, and the negative Poisson ratio structure II and the negative Poisson ratio structure III have bending resistance and crack expansion resistance, so that the conducting layer is prevented from falling off or generating microcracks under the action of repeated stretching and bending loads, and the conducting performance of the electrode is improved.
The preparation of conducting layer 2 adopts screen printing, and conducting layer 2's thickness is 150 ~ 250nm, has adopted toughness, ductility and the good gold (Au) of electric conductivity, compares with traditional lithography technique, has that maneuverability is strong, simple process, efficient advantage.
The side length of each square in the 5 × 5 square array unit 201 of the conductive layer 2 is 1.2-1.8 mm, and the distance between every two squares is also 1.2-1.8 mm.
And the width of all the arc-shaped connecting positions of the second negative Poisson ratio structure 202 and the third negative Poisson ratio structure 203 is 0.15-0.20 mm.
The width of all the arc-shaped connecting parts of the first negative Poisson ratio structure 10101 is 0.15-0.20 mm.
An application of a flexible electrode connected with an inwards concave honeycomb negative Poisson ratio structure in electrophysiological signal detection. The electrode can be used for detecting electrical physiological signals such as Electrocardiogram (ECG), Electromyogram (EMG), electroencephalogram (EEG) and the like, and has important significance for health monitoring and medical diagnosis.
In order to further verify the advantages of the island bridge structure, the mechanical properties of the island bridge structure are subjected to simulation analysis, the analysis results are shown in fig. 5-7, when the load is 20N, compared with the existing island bridge structure, the maximum tensile stress and the maximum bending stress of the island bridge structure are respectively reduced by 30% and 28%, and the fatigue life is improved by 18 times.
In addition, the flexible substrate layer and the conductive layer are designed to realize that the invention has the characteristics of capability of greatly bearing various deformations such as tension, compression, bending and distortion, long service life and good conductivity. The problem of flexible electrode inefficacy under high strength tensile and crooked state in the in-service use, especially the conducting layer drops or produces the microcrack under the effect of repeated tensile and bending load to seriously influence the conductivity can be solved. The invention can be used for detecting the electrophysiological signals such as Electrocardiogram (ECG), Electromyogram (EMG), electroencephalogram (EEG) and the like, and has important significance for health monitoring and medical diagnosis.
While particular embodiments of the present invention have been described, it is to be understood that the invention is not limited to the precise embodiments described above, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A flexible electrode with concave honeycomb negative Poisson ratio structure connection is characterized in that: the flexible substrate comprises a flexible substrate layer and a conductive layer, wherein the conductive layer is printed on the upper surface of the flexible substrate layer, the conductive layer is composed of a 5 x 5 square array unit, the middle of the square array unit is connected through a 4 x 4 negative poisson ratio structure II, the periphery of the square array unit is connected through a negative poisson ratio structure III, and the lower surface of the flexible substrate layer is engraved with a negative poisson ratio structure I.
2. The flexible electrode with a concave honeycomb negative poisson's ratio structural connection of claim 1, wherein: the first negative Poisson ratio structure photoetched on the lower surface of the flexible substrate layer is of a first honeycomb structure with two inwards concave arc edges, and the first honeycomb structure with the two inwards concave arc edges is connected through a connecting rib.
3. The flexible electrode with a concave honeycomb negative poisson's ratio structural connection of claim 1, wherein: the thickness of the flexible substrate layer is 3.5-4.5 um, and polydimethylsiloxane PDMS is adopted.
4. The flexible electrode with a concave honeycomb negative poisson's ratio structural connection of claim 1, wherein: and a second negative Poisson ratio structure in the middle of the conducting layer adopts a four-arc-edge concave honeycomb structure.
5. The flexible electrode with a concave honeycomb negative poisson's ratio structural connection of claim 1, wherein: the periphery of the conducting layer is connected with a negative Poisson ratio structure III, and a honeycomb structure II with two arc sides concave inwards is adopted.
6. The flexible electrode with a concave honeycomb negative poisson's ratio structural connection of claim 1, wherein: the conducting layer is prepared by adopting screen printing, and the thickness of the conducting layer 2 is 150-250 nm.
7. The flexible electrode with a concave honeycomb negative poisson's ratio structural connection of claim 1, wherein: the side length of each square in the 5 multiplied by 5 square array unit of the conducting layer is 1.2-1.8 mm, and the distance between every two squares is 1.2-1.8 mm.
8. The flexible electrode with a concave honeycomb negative poisson's ratio structural connection of claim 1, wherein: and the width of all the arc-shaped connecting parts of the negative Poisson ratio structure II and the negative Poisson ratio structure III is 0.15-0.20 mm.
9. The flexible electrode with a concave honeycomb negative poisson's ratio structural connection of claim 1, wherein: the width of all the arc-shaped connecting parts of the first negative Poisson ratio structure is 0.15-0.20 mm.
10. Use of a flexible electrode having a concave honeycomb negative poisson's ratio structural connection as claimed in claims 1-9 in electrophysiological signal detection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111381958.6A CN114052737A (en) | 2021-11-20 | 2021-11-20 | Flexible electrode connected with concave honeycomb negative Poisson ratio structure and application |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114783300A (en) * | 2022-05-30 | 2022-07-22 | 武汉华星光电半导体显示技术有限公司 | Flexible display module |
| CN115171957A (en) * | 2022-07-08 | 2022-10-11 | 东北电力大学 | Combined negative Poisson ratio flexible electrode imitating butterfly and honeycomb appearance structures |
| CN115530835A (en) * | 2022-10-21 | 2022-12-30 | 吉林大学 | Electrode system suitable for intelligent artificial limb |
| WO2024192785A1 (en) * | 2023-03-22 | 2024-09-26 | 大连理工大学 | Flexible led dot matrix screen having no image distortion under large stretching amount |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107276449A (en) * | 2017-06-07 | 2017-10-20 | 南京航空航天大学 | Chiral negative poisson's ratio structure based on dielectric type electroactive polymer |
| WO2018004313A1 (en) * | 2016-06-30 | 2018-01-04 | 광주과학기술원 | Surface electromyogram sensor having multi-channel |
| WO2018040070A1 (en) * | 2016-08-30 | 2018-03-08 | Tsinghua University | Micro-supercapacitor array for integrated wearable electronic system and integrated wearable electronic system comprising the same |
| WO2018101724A1 (en) * | 2016-11-29 | 2018-06-07 | 서울대학교산학협력단 | Conductive flexible element |
| WO2020130596A1 (en) * | 2018-12-18 | 2020-06-25 | ㈜아모레퍼시픽 | Skin-attachable flexible patch comprising plurality of through-holes and method for manufacturing flexible patch |
| KR20200076816A (en) * | 2018-12-19 | 2020-06-30 | 한국로봇융합연구원 | Hygroscopic OnSkin Sensors having Poisson′s ratio of human skin for Easytohandle Repeated Daily Uses |
| US20200205673A1 (en) * | 2018-12-31 | 2020-07-02 | Korea Institute Of Science And Technology | Sensor patch |
| KR102279068B1 (en) * | 2020-11-25 | 2021-07-19 | 한국과학기술연구원 | Stretchable substrate and manufacturing method thereof |
-
2021
- 2021-11-20 CN CN202111381958.6A patent/CN114052737A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018004313A1 (en) * | 2016-06-30 | 2018-01-04 | 광주과학기술원 | Surface electromyogram sensor having multi-channel |
| WO2018040070A1 (en) * | 2016-08-30 | 2018-03-08 | Tsinghua University | Micro-supercapacitor array for integrated wearable electronic system and integrated wearable electronic system comprising the same |
| WO2018101724A1 (en) * | 2016-11-29 | 2018-06-07 | 서울대학교산학협력단 | Conductive flexible element |
| CN107276449A (en) * | 2017-06-07 | 2017-10-20 | 南京航空航天大学 | Chiral negative poisson's ratio structure based on dielectric type electroactive polymer |
| WO2020130596A1 (en) * | 2018-12-18 | 2020-06-25 | ㈜아모레퍼시픽 | Skin-attachable flexible patch comprising plurality of through-holes and method for manufacturing flexible patch |
| KR20200076816A (en) * | 2018-12-19 | 2020-06-30 | 한국로봇융합연구원 | Hygroscopic OnSkin Sensors having Poisson′s ratio of human skin for Easytohandle Repeated Daily Uses |
| US20200205673A1 (en) * | 2018-12-31 | 2020-07-02 | Korea Institute Of Science And Technology | Sensor patch |
| KR102279068B1 (en) * | 2020-11-25 | 2021-07-19 | 한국과학기술연구원 | Stretchable substrate and manufacturing method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114783300A (en) * | 2022-05-30 | 2022-07-22 | 武汉华星光电半导体显示技术有限公司 | Flexible display module |
| CN115171957A (en) * | 2022-07-08 | 2022-10-11 | 东北电力大学 | Combined negative Poisson ratio flexible electrode imitating butterfly and honeycomb appearance structures |
| CN115171957B (en) * | 2022-07-08 | 2024-06-07 | 东北电力大学 | Combined negative poisson ratio flexible electrode imitating butterfly and honeycomb appearance structure |
| CN115530835A (en) * | 2022-10-21 | 2022-12-30 | 吉林大学 | Electrode system suitable for intelligent artificial limb |
| WO2024192785A1 (en) * | 2023-03-22 | 2024-09-26 | 大连理工大学 | Flexible led dot matrix screen having no image distortion under large stretching amount |
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