CN209446160U - A kind of sticking type skin sensor based on graphene - Google Patents
A kind of sticking type skin sensor based on graphene Download PDFInfo
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- CN209446160U CN209446160U CN201821678570.6U CN201821678570U CN209446160U CN 209446160 U CN209446160 U CN 209446160U CN 201821678570 U CN201821678570 U CN 201821678570U CN 209446160 U CN209446160 U CN 209446160U
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 67
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 238000010023 transfer printing Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 11
- 238000002360 preparation method Methods 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
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- 241000931526 Acer campestre Species 0.000 description 1
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- 241000406668 Loxodonta cyclotis Species 0.000 description 1
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- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
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- 150000001336 alkenes Chemical class 0.000 description 1
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- 239000011248 coating agent Substances 0.000 description 1
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- 238000003745 diagnosis Methods 0.000 description 1
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- 229910002804 graphite Inorganic materials 0.000 description 1
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- 238000009532 heart rate measurement Methods 0.000 description 1
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Abstract
The utility model relates to a kind of sticking type skin sensor based on graphene, belongs to Human Detection field.The sensor include: include: flexible substrate, graphene sensing layer and electrode；The graphene sensing layer and flexible substrate contact with each other, and the distribution of electrodes is at the both ends of graphene sensing layer；The flexible substrate is the film for removing sacrificial layer in water by water-transfer printing paper and leaving；The graphene sensing layer is obtained by laser scanning graphene oxide layer.The skin sensor of the utility model preparation, the pattern of graphene sensing layer therein, graphene can carry out personalized designs, and shape, size can be adjusted as needed, simple and beautiful.The skin sensor of the utility model preparation can be attached at skin vibrations easily, carry out daily portable sensing.
Description
Technical field
The utility model relates to a kind of sticking type skin sensor based on graphene, belongs to Human Detection field.
Background technique
The movement of skin surface can characterize many physiological activities.For example chest skin caused by the breathing of human body can be used
The variation such as the fluctuating of the skin of skin or abdomen, flexible, characterizes respiratory rate, respiratory capacity of human body etc.；Skin vibrations are also at heart
The information such as heartbeat, heart rate can be characterized；The skin vibrations information at human body throat position can characterize human body and speak, vocal cord vibration, gulp down
The movement of the necks such as pharynx, rotary head portion；Skin vibrations information at human body wrist can characterize the information such as pulse pulse condition, wrist rotation.
In terms of breathing detection, wearable respiration monitoring device on the market mostly uses greatly ceramic condenser or ceramic electrical
Sensor is hindered, the chest strap for having sensor or abdominal belt are tied up to the physical feeling measured in needs, the pressure of breathing is converted into biography
The variation of the resistance, capacitor of sensor, then be sent to display device through conducting wire and show.The tightness of the bandage of this equipment is not easy
It controls, pine will lead to measurement result inaccuracy excessively, and tension can cause the measured uncomfortable again and can reduce chest strap or abdominal belt
Service life, be unfavorable for subjects carry out real-time monitoring.
In terms of pulse detection, pulse is the tangible arteriopalmus arrived of people's body surface, can characterize Human Physiology and health
Information.Doctor with finger feel come pulse image, show the depth at position, the speed of rate, intensity including arterial pulse
Size, the rhythm and pace of moving things it is uniform whether etc., may determine that the health degree of a people by the diagnosis to human connection elephant.Traditional pulse
Detection method is typically all to be felt by doctor to judge, and due to the difference of the factors such as everyone knowledge, experience, right
The feeling of pulse condition and judgement also can be inconsistent, thus the obtained error of pulse detection result of traditional pulse detection method compared with
Greatly.Heart rate, throat vibrate etc. context of detection, also encounter the problem that the device is complicated, inconvenient for use, sensitivity is low.
Sticking type skin sensor is a kind of important biomedical sensor, can characterize the activity of skin surface.It
It is required that flexibility and scalability that device has possessed, high sensitivity, good compactness and comfort level.Graphene is outstanding due to it
Electric conductivity and flexibility, be the ideal material of sticking type skin sensor.But by graphene Comfortable attractive, reliablely and stablely
It is fitted in skin surface, meets the function of acquiring various physiological signals, is a urgent problem to be solved.
Summary of the invention
The purpose of this utility model is to propose a kind of sticking type skin sensor based on graphene, can be portable and accurate
Ground measures skin vibrations feature, solves currently in necks such as round-the-clock health monitoring, portable heart rate detection or physiological signal records
To skin vibrations, breathing heart rate measurement etc., fields equipment instrument is at high cost greatly, installs and uses inconvenience, the not difficulties such as easy donning in domain.
The sticking type graphene skin sensor of the utility model preparation, comprising: flexible substrate, graphene sensing layer and electricity
Pole；The graphene sensing layer and flexible substrate contact with each other, and the distribution of electrodes is at the both ends of graphene sensing layer.
The utility model proposes the sticking type skin sensor based on graphene, its advantage is that:
1, the sticking type skin sensor of the utility model design has ultra-thin substrate, directly attaching skin, does not dress
Sense of discomfort.
2, the sticking type skin sensor of the utility model design, exterior design can customize.Due to laser scan pattern
It can program, during patterned, the pattern of graphene sensing layer can carry out personalized designs, and shape, size are equal
It can be adjusted as needed, it is simple and beautiful.
3, the sticking type skin sensor of the utility model design, measurement are accurate.Laser reduction is based in the method for the present invention
Graphene combines graphene with tatooing, and interface is drawn by electrode, by resistance variations to the miniature deformation of skin surface
It is monitored, is accurately obtained skin vibrations signal.
4, the sticking type skin sensor of the utility model design, application is extensive, can measure various skin surfaces
Regular or irregular vibration or motion conditions, reflection rapidly, can be obtained the vibration of high frequency low frequency based on external circuit
To visualization waveform, frequency, amplitude etc. can also be analyzed, effect is obvious.
Detailed description of the invention
Fig. 1 be the utility model proposes the sticking type skin sensor based on graphene structural schematic diagram.
Fig. 2 be the utility model proposes the sticking type skin sensor based on graphene preparation process schematic diagram.
Fig. 3 is the usage state diagram of the sticking type skin sensor of the utility model.
Fig. 4 is the outer detecting circuit schematic diagram of the sticking type skin sensor of the utility model.
In Fig. 1, Fig. 2 and Fig. 3,1 is flexible substrate, and 2 sacrificial layers, 3 be graphene oxide layer, and 4 be dry graphene oxide
Layer, 5 be graphene sensing layer, and 6 and 7 are distributed across the electrode at sensor both ends respectively.
Specific embodiment
The sticking type skin sensor based on graphene of the utility model preparation, structure are as shown in Figure 1, comprising: soft
Property substrate 1, graphene sensing layer 5 and electrode 6 (7).Graphene sensing layer 5 and flexible substrate 1 contact with each other, the electrode 6
(7) both ends of graphene sensing layer 5 are distributed in.
The utility model proposes sticking type graphene skin sensor preparation process, as shown in Fig. 2, include following step
It is rapid:
(1) it by graphene oxide solution drop coating or is spin-coated on water-transfer printing paper, forms graphene oxide on water-transfer printing paper
Layer 3, by graphene oxide film nature airing, make dry graphene oxide layer 4 with a thickness of 5-40 microns, such as (a) in Fig. 2
It is shown.
(2) laser irradiating method is used, formula irradiation is scanned in dry 4 upper surface of graphene oxide layer, by irradiation
Drying graphene oxide layer 4 reduction become graphene sensing layer 5, show as black.The optical maser wavelength of irradiation is 400-
500nm, laser power density is in 10mW/cm2-50mW/cm2Between, scanning speed is in 1mm/s-100mm/s.In Fig. 2
(b) shown in.
(3) into the water by the structure of above-mentioned steps (2), make the sacrificial layer 2 of graphene sensing layer lower part and not by laser
The drying graphene oxide layer 4 of irradiation falls off, and flexible substrate layer 1 can leave, as shown in (c) in Fig. 2；
(4) conductive material 6 and 7 is set in the end of graphene sensing layer 5, obtains sticking type graphene skin sensor,
As shown in (d) in Fig. 2.
Below in conjunction with attached drawing, the preparation principle of this sticking type skin sensor is discussed in detail:
As shown in Figure 1, the sticking type graphene skin sensor of the utility model production shares 2 layers, i.e. flexible substrate layer 1
With graphene sensing layer 5, additionally adhesive electrodes 6, electrode 7.
Wherein, flexible substrate layer 1 and sacrificial layer 2 together constitute water-transfer printing paper, and 1 is the upper layer film of water-transfer printing paper, and 2 be water
Structure of the transfer paper in addition to layer 1.2 are easy to fall off in water, referred to as sacrificial layer.In preparation process shown in Fig. 2,3 be in water
The graphene oxide layer of coating or spin coating on transfer paper (1 and 2) forms dry graphene oxide layer 4 after spontaneously drying, thick
Degree is 5-40 microns.Dry graphene oxide layer 4 forms graphene sensing layer 5 after laser scanning, not by the ground of laser scanning
Side is still dry graphene oxide layer 4.Structure obtained above is impregnated or rinsed into the water, it can be by water-transfer printing paper
Layer 2 falls off, and dry graphene oxide layer 4 is fallen off.Only remaining 1 and 5 structure spontaneously dries after falling off, and in graphene
5 upper surface of sensing layer makes two rod-shaped electrodes 6,7.The shape of electrode 6,7 and distribution can be adjusted according to the needs.
Fig. 3 is the usage state diagram of the sticking type skin sensor of the utility model.
Below in conjunction with attached drawing, the working principle of this sticking type skin sensor is discussed in detail:
Flexible substrate layer 1 derives from water-transfer printing paper it can be seen from preparation process.Water-transfer printing paper is impregnated to punching in a liquid
It washes, after removing sacrificial layer 2, one layer of flexible substrate, i.e. flexible substrate layer 1 can be left.The function of flexible substrate layer 1 is carrying upper layer
Graphene sensing layer is bonded skin.
Graphene sensing layer 5 is core sensing unit, is obtained by the dry graphene oxide layer 4 of laser scanning.Graphite
Alkene sensing layer 5 can more stick on water-transfer printing paper than graphene oxide, and not soluble in water.Pass through what is impregnated or rinse in water
Mode removes dry graphene oxide layer 4, leaves graphene sensing layer 5.
Electrode 6, electrode 7 are attached to the electrode on graphene sensing layer 5, and function output graphene sensing layer obtains
Signal.Its material can be the electrically conductive material such as metal electrode or conducting resinl (band).In the present invention, typical material
Material is conductive silver paste, and preparation method is that silver paste is coated in required position and is placed under high temperature (80 DEG C of <) or normal temperature environment to do
It is dry.
The utility model is not stringent to decentralized medium, the density requirements of graphene oxide solution, and solvent is aqueous or oiliness
It is ok, general density is not less than 0.001g/cm3, that is, meet sensing function.In one embodiment of the utility model, stone
The parameter of black alkene solution is as follows:
| Apparent form | Black liquor |
| Decentralized medium | Water |
| Density | 0.4g/cm3 |
The external circuit testing principle of the utility model design is detection resistance variation.Due to the signal of this sensor output
It is resistance variations, above-mentioned external signal detection circuit, usually resistance measuring circuit, such as " resistance measurement with voltammetry "；Or
Based on circuit of measurement resistance principle design, such as load constant-current source measurement voltage change etc., Fig. 4 is the attaching of the utility model
The outer detecting circuit schematic diagram of formula skin sensor.
Claims (1)
1. a kind of sticking type skin sensor based on graphene, it is characterised in that the sensor includes: flexible substrate, graphene
Sensing layer and electrode；The graphene sensing layer and flexible substrate contact with each other, and the distribution of electrodes is sensed in graphene
The both ends of layer；The flexible substrate is the film for removing sacrificial layer in water by water-transfer printing paper and leaving；The graphene
Sensing layer is obtained by laser scanning graphene oxide layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821678570.6U CN209446160U (en) | 2018-10-17 | 2018-10-17 | A kind of sticking type skin sensor based on graphene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821678570.6U CN209446160U (en) | 2018-10-17 | 2018-10-17 | A kind of sticking type skin sensor based on graphene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209446160U true CN209446160U (en) | 2019-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821678570.6U Active CN209446160U (en) | 2018-10-17 | 2018-10-17 | A kind of sticking type skin sensor based on graphene |
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| Country | Link |
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| CN (1) | CN209446160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113243920A (en) * | 2021-05-12 | 2021-08-13 | 北京石墨烯研究院 | Flexible attached skin electrode and preparation method and application thereof |
-
2018
- 2018-10-17 CN CN201821678570.6U patent/CN209446160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113243920A (en) * | 2021-05-12 | 2021-08-13 | 北京石墨烯研究院 | Flexible attached skin electrode and preparation method and application thereof |
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