CN113521524A - Electronic skin tattoo with heating function and preparation method and application thereof - Google Patents
Electronic skin tattoo with heating function and preparation method and application thereof Download PDFInfo
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- CN113521524A CN113521524A CN202110812878.5A CN202110812878A CN113521524A CN 113521524 A CN113521524 A CN 113521524A CN 202110812878 A CN202110812878 A CN 202110812878A CN 113521524 A CN113521524 A CN 113521524A
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- electronic tattoo
- heating
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 82
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 19
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 19
- 229910001338 liquidmetal Inorganic materials 0.000 claims abstract description 14
- 239000007921 spray Substances 0.000 claims description 11
- 229910000846 In alloy Inorganic materials 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052733 gallium Inorganic materials 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 4
- 230000036541 health Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000002604 ultrasonography Methods 0.000 claims description 4
- 230000003238 somatosensory effect Effects 0.000 claims description 3
- 238000009210 therapy by ultrasound Methods 0.000 claims description 3
- 238000006136 alcoholysis reaction Methods 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 238000002560 therapeutic procedure Methods 0.000 claims description 2
- 210000003491 skin Anatomy 0.000 abstract description 56
- 230000006870 function Effects 0.000 abstract description 32
- 210000002615 epidermis Anatomy 0.000 abstract description 15
- 230000003993 interaction Effects 0.000 abstract description 2
- 230000008338 local blood flow Effects 0.000 abstract description 2
- 230000008961 swelling Effects 0.000 abstract 1
- 238000000015 thermotherapy Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 229910021389 graphene Inorganic materials 0.000 description 3
- 238000007592 spray painting technique Methods 0.000 description 3
- 230000035900 sweating Effects 0.000 description 3
- 238000001931 thermography Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical group C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000036548 skin texture Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
- A61M37/0076—Tattooing apparatus
- A61M37/0084—Tattooing apparatus with incorporated liquid feeding device
Abstract
The invention provides an epidermal electronic tattoo with a heating function, and a preparation method and application thereof. The electronic tattoo comprises a reciprocating loop formed by conductive ink and a heating end; the conductive ink includes: polyvinyl alcohol solution and liquid metal. The invention provides a conductive pattern tattoo which is sprayed on skin and has a heating function, the skin can be heated by electrifying the electronic tattoo of the epidermis, the thermotherapy of local skin can be realized, the functions of improving local blood circulation, reducing swelling, relieving pain and relieving adhesion can be realized, the temperature sensing and interaction of people in a virtual environment can be realized in the field of virtual reality, and the heating electronic tattoo solves the problems of air impermeability of a conventional resistance heating patch and discomfort caused by pasting on the skin.
Description
Technical Field
The invention belongs to the technical field of conductive materials, relates to an electronic tattoo, a preparation method and application thereof, and particularly relates to an epidermal electronic tattoo with a heating function, and a preparation method and application thereof.
Background
Wearable devices are rapidly developing and require heating of human epidermis in many areas including health monitoring and therapy, somatosensory gaming, virtual reality. Conventional heating means include infrared radiation heating and conduction heating. The infrared radiation heating mode needs to arrange a light source near a human body, so that the movement of the human body is inconvenient, and the use limitation is obvious. Heating the local skin by means of heat conduction is usually done by attaching a heating patch to the skin. The heating mode is not influenced by the activity of human body, and is convenient to use in life and complex environment. However, at present, the human epidermis is heated by heat conduction mainly by attaching a patch with heating function to the skin, so as to heat the local skin.
At present, most of the leading researches are to adhere a flexible stretchable circuit with good fitting property to the skin to achieve the purpose of fully fitting with the skin, stretching and deforming along with the skin and heating under the condition of electrifying. This way of applying the flexible stretchable heating film patch to the skin has no way of being completely embedded deep into the skin's texture and thus has a slightly inferior conformality with the skin. Moreover, the coverage of large-area air-impermeable films can prevent the air permeability of the skin, and the adhesiveness of the film to the skin after sweating is greatly reduced. The discomfort of attaching a film to the skin is also a disadvantage.
CN110696540A discloses an electronic tattoo skin based on patterned graphene and a preparation method thereof. The electronic tattoo skin mainly comprises three layers: the upper layer is a PDMS layer, the middle layer is a graphene layer, and the lower layer is a glue base layer. When in use, the electronic tattoo skin is transferred to the skin of a human body through the adhesive base layer (back adhesive) to realize that the electronic tattoo skin is directly pasted on the surface of the skin of the human body. Besides the function of attractive appearance and decoration, health data such as human body movement, pulse and expiration frequency can be detected through the change of the electric signals of the graphene in the middle layer.
CN108384327A discloses a stretch-rendered electrically conductive liquid metal particle-based conductive ink comprising: liquid metal and polymer solution, and provides a preparation method and application of the conductive ink. The conductive ink disclosed by the invention is simple to prepare, low in cost, easy to pattern and suitable for various substrate materials, and the liquid metal has excellent conductivity, flexibility and tensile property.
Therefore, the development of an electronic tattoo having excellent skin-friendly properties and no discomfort is an important research point in the art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an electronic tattoo for epidermis with a heating function and a preparation method and application thereof. The invention forms the specific tattoo pattern by the conductive ink, thereby not only ensuring the heating area of the tattoo, but also ensuring the air permeability of the tattoo.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a epidermal electronic tattoo having a heating function, which includes a round-trip loop formed of conductive ink and a heating tip;
the conductive ink includes: polyvinyl alcohol solution and liquid metal.
In the invention, the friction-resistant conductive ink is directly printed on the surface of the skin by adopting a mode of spraying and painting the tattoo of the ink layer of a specific reciprocating loop to form a heatable circuit pattern, so that no airtight film material covers the large area of the skin. The bothersome tattoo with the specific pattern can enable the conductive circuit to be completely embedded with the skin, penetrate into the skin lines and have no damage to the deformation effect of the skin. And the ink used by the invention has friction resistance, so that the encapsulation layer is not required to be used for encapsulation. It has good stability after sweating without affecting its adhesion to skin. The electronic tattoo with the jet-printed heatable epidermis has no sense of discomfort on the skin.
Wherein the shuttle loop and the heating tip are both formed from conductive ink, the conductive ink comprising: polyvinyl alcohol solution and liquid metal, liquid metal itself has excellent electric conductivity, flexibility and tensile properties, and polyvinyl alcohol can guarantee gas permeability, heating effect and antifriction better than other macromolecular solution.
The heating ends are respectively arranged at two ends of the reciprocating loop, when in heating, the two ends of the electrical reciprocating loop are connected to a power supply to be electrified and pressurized, and the electronic tattoo on the epidermis forms a circuit loop, so that the heating can be carried out. The shape of the heating end can be set arbitrarily, such as round, oval and the like.
Preferably, the thickness of the epidermal electronic tattoo having heating function is 5-15 μm, and may be, for example, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm, 15 μm, or the like.
Preferably, the epidermal electronic tattoo having a heating function includes ink layers formed of conductive ink and having 5 or more (e.g., 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 20, 25, etc.) round-trip loops.
In the invention, if the number of the back-and-forth loops is too small, the heating effect of the conductive circuit on the skin is poor; if the number of the return paths is too large, the ink may cover a large area of the skin too much, resulting in poor air permeability.
Preferably, the length of each round-trip loop is the same and the pitch of each round-trip loop is the same.
Preferably, the mass ratio of the polyvinyl alcohol solution to the liquid metal is (1-2):1, and may be, for example, 1:1, 1.2:1, 1.4:1, 1.6:1, 1.8:1, 2:1, and the like.
Preferably, the polyvinyl alcohol solution has a solids content of 1-10 wt%, which may be, for example, 1 wt%, 2 wt%, 4 wt%, 6 wt%, 8 wt%, 10 wt%, etc.
The degree of alcoholysis of the polyvinyl alcohol is preferably 99 mol% or more, and may be, for example, 99.0 mol%, 99.1 mol%, 99.2 mol%, 99.3 mol%, 99.4 mol%, 99.5 mol%, or the like.
Preferably, the solvent in the polyvinyl alcohol solution is selected from water or dimethyl sulfoxide, preferably water.
Preferably, the liquid metal is a gallium indium alloy and/or a gallium metal.
Preferably, the mass ratio of gallium to indium in the gallium-indium alloy is (3-4):1, and may be, for example, 3:1, 3.2:1, 3.4:1, 3.6:1, 3.8:1, 4:1, and the like.
In a second aspect, the present invention provides a method for preparing an epidermal electronic tattoo having a heating function according to the first aspect, the method comprising the steps of:
(1) pretreatment: mixing the polyvinyl alcohol solution and the liquid metal and performing ultrasonic treatment to obtain conductive ink; manufacturing a hollowed-out pattern sticker according to the drawn electronic tattoo;
(2) and (3) after the hollowed-out pattern sticker in the step (1) is attached to the skin, spraying conductive ink to form the electronic skin tattoo with the heating function.
The manufacturing method of the invention is very simple, the time from the preparation of the ink to the completion of the spray painting is only within 10min, and the pattern of the spray painting tattoo can completely embed the conductive circuit with the skin and go deep into the skin lines, thereby improving the heating effect of the skin
Preferably, in step (1), the power of the mixing ultrasound is 15-20W, such as 15W, 16W, 17W, 18W, 19W, 20W, etc., and the time of the mixing ultrasound is 2-3min, such as 2min, 2.2min, 2.4min, 2.6min, 2.8min, 3min, etc.
Preferably, in the step (1), the hollowed-out pattern sticker is made of PVC.
Preferably, in the step (2), the spraying is performed by using a pneumatic spray pen.
Preferably, the pneumatic pen has an operating air pressure of 20-30psi, such as 20psi, 22psi, 24psi, 26psi, 28psi, 30psi, etc., a nozzle caliber of 0.3-0.5mm, such as 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, etc., and a spray distance of 10-20cm, such as 10cm, 12cm, 14cm, 16cm, 18cm, 20cm, etc.
In a third aspect, the invention provides an application of the epidermal electronic tattoo with heating function according to the first aspect in the preparation of health monitoring and treatment, somatosensory games or virtual reality equipment.
The invention relates to a conductive pattern tattoo with a heating function, which is sprayed on the skin. The skin can be heated by electrifying the electronic tattoo of the epidermis. Realizes the functions of local skin heat treatment, local blood circulation improvement, detumescence, pain relief and adhesion relief. And realizing human perception and interaction of the temperature in the virtual environment in the field of Virtual Reality (VR). And the heating electronic tattoo solves the problems of air impermeability and discomfort caused by skin sticking of the conventional resistance heating patch.
Compared with the prior art, the invention has the following beneficial effects:
(1) the electronic tattoo has the advantages that the electronic tattoo has no large-area coverage of the airtight film material on the skin, and is excellent in ventilation;
(2) the electronic tattoo with heating function can embed the conductive circuit with the skin completely and penetrate into the skin lines, thereby improving the heating effect of the skin;
(3) the electronic tattoo with heating function has friction resistance, so that the electronic tattoo does not need to be packaged by a packaging layer; the product still has good stability after sweating without affecting the adhesiveness with skin;
(4) the electronic skin tattoo with the heating function has no sense of discomfort on the skin;
(5) the manufacturing method of the electronic tattoo with the heating function is very simple, only 10 minutes are needed from the preparation of the ink to the completion of the spray painting, the preparation cost is low, and the cost for roughly calculating the electronic tattoo with the epidermis is within 0.5 yuan.
Drawings
Fig. 1 shows a heating circuit pattern of an electronic tattoo of epidermis having a heating function according to example 1.
FIG. 2A is a diagram illustrating the heating effect detected by the thermal imaging instrument of the electronic tattoo apparatus according to example 1;
FIG. 2B is a diagram showing the ratio of different temperatures in the heating area of the electronic tattoo of epidermis to the total heating area;
fig. 2C is a temperature distribution on a cross section of an electronic tattoo of epidermis.
Fig. 3A is a temperature rising and decreasing curve of the epidermal electronic tattoo with heating function provided in example 1 under different voltages;
FIG. 3B is a graph showing the temperature of the electronic tattooing of the epidermis with heating function according to example 1 as a function of voltage;
fig. 3C is a graph showing the resistance change of the electronic tattooing skin having the heating function according to example 1 after the temperature is increased.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
The following sources of the components are shown below: polyvinyl alcohol is purchased from (manufacturer: Michelin, model 1799) and gallium-indium alloy (manufacturer: Haoke technology, gallium-indium alloy mass ratio is 4: 1).
Example 1
The present embodiment provides an electronic skin tattoo with a heating function, wherein the electronic skin tattoo with a heating function is an ink layer formed by conductive ink and having 11 round-trip loops, each round-trip loop has the same length, and each round-trip loop has the same pitch (as shown in fig. 1).
The preparation method of the epidermal electronic tattoo with the heating function comprises the following steps:
(1) pretreatment: dissolving 5 wt% of polyethylene in deionized water to obtain a polyvinyl alcohol solution, adding the polyvinyl alcohol solution and the gallium-indium alloy into the same centrifugal tube according to the mass ratio of 1.5:1, uniformly mixing the polyvinyl alcohol solution and the gallium-indium alloy by using an ultrasonic crusher, and carrying out 15-20% amplitude ultrasonic treatment for 3min to obtain conductive ink; manufacturing the PVC paster by using a paper cutter, and manufacturing the hollowed-out pattern paster according to the drawn electronic tattoo (as shown in figure 1);
(2) and (2) after the hollow pattern sticker in the step (1) is attached to the skin, spraying conductive ink by using a pneumatic spray pen, wherein the working air pressure of the pneumatic spray pen is 35psi, the nozzle caliber of the pneumatic spray pen is 0.3mm, and the spraying distance of the pneumatic spray pen is 15cm, so that a 10-micrometer-thick electronic skin tattoo with a heating function is formed.
Test example 1
The heating can be performed by connecting both ends of the circuit to a power supply, and the pattern heating effect is detected by using a thermal imager (manufacturer: Degraph, model: 865), and the specific results are as follows:
FIGS. 2A-2C are graphs showing the effect of heating detected by the thermal imaging instrument of the electronic tattoo for epidermis having heating function according to example 1, wherein, as shown in FIG. 2A, the thermal imaging is performed during the operation of heating the tattoo; as shown in fig. 2B, the different temperatures in the heating zones are proportional to the total heating zone; as shown in fig. 2C, the temperature distribution over the cross section. Therefore, the electronic tattoo has an obvious heating effect, and the conductive circuit can be completely embedded with the skin to penetrate into the skin lines, so that the heating effect of the skin is improved, and the heating is uniform.
Test example 2
The two ends of the circuit are connected to a power supply to heat, and a temperature rising curve and a temperature reducing curve are drawn, wherein the specific drawing method comprises the following steps: starting a power supply to heat for 3min, then closing the power supply to wait for cooling to room temperature, monitoring the circuit temperature in real time by using a thermal imager during the period, and recording the temperature value of the corresponding time point so as to draw a temperature-time curve; the specific results are as follows:
FIGS. 3A-3C are temperature increasing and decreasing curves of the electronic tattooing of epidermis with heating function provided in example 1, wherein, as shown in FIGS. 3A and 3B, the higher the voltage, the faster the temperature increase; as shown in fig. 3C, the electronic tattoo for epidermis having heating function according to the present invention has an extremely small change in resistance with an increase in temperature, and thus has an excellent heating effect.
The applicant states that the present invention is described by the above embodiments of the present invention, but the present invention is not limited to the above embodiments, i.e., it is not meant to imply that the present invention must be implemented by the above embodiments. It will be apparent to those skilled in the art that any modification of the present invention, equivalent substitutions of selected materials and additions of auxiliary components, selection of specific modes and the like, which are within the scope and disclosure of the present invention, are contemplated by the present invention.
Claims (10)
1. The electronic skin tattoo with the heating function is characterized by comprising a reciprocating loop and a heating end, wherein the reciprocating loop is formed by conductive ink;
the conductive ink includes: polyvinyl alcohol solution and liquid metal.
2. The epidermal electronic tattoo having heating function according to claim 1, wherein said epidermal electronic tattoo having heating function has a thickness of 5-15 μm.
3. The epidermal electronic tattoo having heating function according to claim 1 or 2, wherein said epidermal electronic tattoo having heating function comprises an ink layer formed of conductive ink and having 5 or more round-trip loops;
preferably, the length of each round-trip loop is the same and the pitch of each round-trip loop is the same.
4. The epidermal electronic tattoo having heating function according to any one of claims 1-3, wherein the mass ratio of said polyvinyl alcohol solution and liquid metal is (1-2): 1.
5. The epidermal electronic tattoo having heating function according to any one of claims 1-4, wherein said polyvinyl alcohol solution has a solid content of 1-10 wt%;
preferably, the alcoholysis degree of the polyvinyl alcohol is more than 99 mol%;
preferably, the solvent in the polyvinyl alcohol solution is selected from water or dimethyl sulfoxide, preferably water.
6. The epidermal electronic tattoo having a heating function according to any one of claims 1-5, wherein said liquid metal is gallium-indium alloy and/or gallium metal;
preferably, the mass ratio of gallium to indium in the gallium-indium alloy is (3-4): 1.
7. The method for preparing epidermal electronic tattoo having heating function according to any one of claims 1-6, wherein said method comprises the steps of:
(1) pretreatment: mixing the polyvinyl alcohol solution and the liquid metal and performing ultrasonic treatment to obtain conductive ink; manufacturing a hollowed-out pattern sticker according to the drawn electronic tattoo;
(2) and (3) after the hollowed-out pattern sticker in the step (1) is attached to the skin, spraying conductive ink to form the electronic skin tattoo with the heating function.
8. The method for preparing epidermal electronic tattoo according to claim 7, wherein in step (1), the power of said mixed ultrasound is 15-20W, and the time of said mixed ultrasound is 2-3 min;
preferably, in the step (1), the hollowed-out pattern sticker is made of PVC.
9. The method for preparing epidermal electronic tattoo according to claim 7 or 8, wherein in step (2), said spraying is performed by using a pneumatic spray pen;
preferably, the working air pressure of the pneumatic spray pen is 20-30psi, the caliber of a nozzle of the pneumatic spray pen is 0.3-0.5mm, and the spray distance of the pneumatic spray pen is 10-20 cm.
10. Use of the epidermal electronic tattoo with heating function according to any one of claims 1-6 for the preparation of health monitoring and therapy, somatosensory gaming or virtual reality equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110812878.5A CN113521524A (en) | 2021-07-19 | 2021-07-19 | Electronic skin tattoo with heating function and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110812878.5A CN113521524A (en) | 2021-07-19 | 2021-07-19 | Electronic skin tattoo with heating function and preparation method and application thereof |
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| CN113521524A true CN113521524A (en) | 2021-10-22 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111134401A (en) * | 2018-11-02 | 2020-05-12 | 国家纳米科学中心 | High-elasticity intelligent clothes based on liquid metal, and preparation method and application thereof |
| CN112932494A (en) * | 2021-01-29 | 2021-06-11 | 南方科技大学 | Epidermis dry electrode and manufacturing method thereof and epidermis electric signal acquisition device |
| CN113108687A (en) * | 2021-04-15 | 2021-07-13 | 南方科技大学 | Skin electronic stretch sensor tattoo and preparation method and application thereof |
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2021
- 2021-07-19 CN CN202110812878.5A patent/CN113521524A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111134401A (en) * | 2018-11-02 | 2020-05-12 | 国家纳米科学中心 | High-elasticity intelligent clothes based on liquid metal, and preparation method and application thereof |
| CN112932494A (en) * | 2021-01-29 | 2021-06-11 | 南方科技大学 | Epidermis dry electrode and manufacturing method thereof and epidermis electric signal acquisition device |
| CN113108687A (en) * | 2021-04-15 | 2021-07-13 | 南方科技大学 | Skin electronic stretch sensor tattoo and preparation method and application thereof |
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Application publication date: 20211022 |