CN113768496B - Device for monitoring motion state of biological body surface or bionic body inner surface - Google Patents
Device for monitoring motion state of biological body surface or bionic body inner surface Download PDFInfo
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
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Abstract
The invention provides a device for monitoring the motion state of the surface of an organism or the inner surface of a bionic body, which is characterized in that after macromolecular polymer sol is coated and dried on the surface of the organism or the inner surface of the bionic body, an electric connector is prepared on the surface of the organism or the inner surface of the bionic body by using a liquid metal composite material doped with modified graphene, and a motion state monitoring, energy supplying and controlling module is attached. The device preparation is simple, the security is high, and the liquid metal combined material that modified graphene mixes has good carrier adaptability, and does not need extra surface packaging to handle, and the electric connector of preparation has high conductivity and flexibility, can satisfy the demand of monitoring motion state.
Description
Technical Field
The invention belongs to the technical field of electronic material preparation and device processing, and particularly relates to a device for monitoring the motion state of the inner surface of a biological body surface or a bionic body.
Background
Currently, flexible technology is seen as one of the mainstream interactive forms of next-generation intelligent hardware, and flexible devices are also growing rapidly on an exponential scale. The rapid development of flexible devices has led to a great interest in many applications, such as health monitoring devices, electronic skins, and implantable devices. Meanwhile, the deep mind of the healthy Chinese idea also has higher and higher requirements on the convenience of the detection device, can monitor the body surface and the internal motion state of the organism in real time, and is helpful for rapidly and comprehensively mastering the functional characteristics of the organism, which is very necessary for improving the health quality. Among them, the quality of the electric connector is crucial to the real-time monitoring of the moving state of the living body. The elasticity, the bendability and the stretchability of the flexible electric connector can be well adapted to the stretching and the bending of the epidermis and tissues of an organism, so that the prepared device can be used for accurately measuring the motion state of the surface of the organism in real time. Meanwhile, the bionic body prepared by 3D printing can simulate the physical and chemical properties of the organism by selecting an acrylic resin material with the physical and chemical properties similar to those of the organism, so that the aim of truly simulating the characteristics of the organism is fulfilled, the motion state of the organism is simulated and real-time monitoring is realized by preparing a device on the inner surface of the bionic body, and an effective means is provided for deeply researching the motion state in the organism.
The liquid metal has good conductivity and is in a liquid state at normal temperature, so that the liquid metal can be used as a flexible conductive material and can be used for manufacturing a flexible electric connector in a printing mode. The electric connector prepared from the liquid metal has the advantages of being capable of being manufactured quickly, environment-friendly, capable of being used for manufacturing flexible and bendable electric connectors, stretchable and the like. However, the electrical connector made of liquid metal requires a certain packaging technology to isolate the conductive wire from the external environment, so as to avoid oxidation or physical damage of the liquid metal conductive wire. At present, materials such as PDMS or silica gel are generally used for preparing the electric connector from the liquid metal, uncured PDMS or silica gel materials are filled on the surface of the electric connector prepared from the liquid metal, and the packaging material is solidified by high temperature or natural curing, so that the electric connector is protected. This method requires a long waiting time, and the package thickness and uniformity are difficult to ensure due to the use of the natural curing method. Meanwhile, the selectivity of the liquid metal to the preparation of the carrier is high, which further limits the application and popularization of the liquid metal.
Disclosure of Invention
Based on the technical problems in the background art, the invention aims to provide a device for monitoring the motion state of the surface of an organism or the inner surface of a bionic body, which is characterized in that high-viscosity high-molecular polymer sol is coated and dried on the surface of the organism or the inner surface of the bionic body to obtain a high-molecular polymer curing film, then an electric connector is prepared on the surface of the organism or the inner surface of the bionic body by using a liquid metal composite material doped with modified graphene, and a motion state monitoring, energy supplying and controlling module is attached. The device is simple to prepare, high in safety, the used modified graphene-doped liquid metal composite material has good carrier adaptability, an even and stable electric connector can be prepared on the surface of a high-molecular polymer curing film, extra surface packaging treatment is not needed, and the application range is wide. Meanwhile, the prepared electric connector has high conductivity and flexibility, and can meet the application requirement of monitoring the motion state of the inner surface of a biological body surface or a bionic body. The specific technical scheme is as follows:
a device for monitoring the motion state of the surface of a living body or the inner surface of a bionic body is prepared by the following steps:
(1) Coating the high-viscosity high-molecular polymer sol A on the surface of an organism or the inner surface of a bionic body, and then curing in an infrared drying or low-temperature drying mode to obtain a high-molecular polymer curing film tightly attached to the surface of the organism or the inner surface of the bionic body, wherein the infrared drying power is 10-50W, and the infrared drying time is 3-5min; drying at 40-60 deg.C for 5-10min;
(2) Preparing an electric connector on the surface of the high-molecular polymer curing film by using the modified graphene-doped liquid metal composite material B, wherein the prepared electric connector is in a semi-solid state and can be uniformly attached to the surface of the high-molecular polymer curing film without additionally adding a packaging process; the method for preparing the electric connector by using the modified graphene-doped liquid metal composite material B comprises one or more of extrusion, electro-hydrodynamic direct writing and brush drawing;
(3) A motion state monitoring, energy supplying, signal transmission and control module is attached to the surface of the electric connector, and a device for monitoring the motion state of the surface of a living body or the inner surface of a bionic body is obtained.
The high molecular polymer sol comprises one or more of PVP hydrosol, PVP-PEG hydrosol, PVP-PLA hydrosol and PVP-PEG-PLA hydrosol, and the viscosity of the high molecular polymer sol is 1,000-4,000cp. The selected high molecular polymer sol material has good compatibility and low toxicity to organisms, and has rich sources, so that the biosafety problem does not need to be worried about.
The bionic body is prepared by adopting a mode of photocuring 3D printing acrylic composite resin, and the acrylic composite resin is formed by mixing two or more than two of 1, 4-butanediol diacrylate, di (ethylene glycol) dimethacrylate, 1, 4-butanediol dimethacrylate, 2-hydroxyethyl methacrylate and hydroxypropyl methacrylate. The selected bionic material has good elasticity, toughness and stretchability after being subjected to photocuring treatment, so that the bionic material can be used as a bionic material with an organism structure and a function.
The preparation process of the modified graphene-doped liquid metal composite material B comprises the following steps: modified graphene, liquid metal and an ester solvent are mixed according to the weight ratio of (0.001-0.03): (0.1-0.2): 1, uniformly mixing the raw materials in a ball milling mode, and then drying in vacuum, wherein the ball milling speed is 100-300rpm, the ball milling time is 6-24h, the vacuum drying temperature is 120-180 ℃, and the vacuum drying time is 4-6h. Graphene is a two-dimensional carbon nano material with excellent physical and chemical properties such as electricity, heat and mechanics, but the sheets of graphene have strong pi-pi interaction and high specific surface energy, so that the graphene has strong chemical inertness and is easy to tend to aggregate, and the excellent performance of the graphene is limited. By modifying the surface of the graphene, on one hand, the dispersibility of the graphene in an ester solvent can be improved, and the graphene can be doped into liquid metal; on the other hand, chemical bonds and intermolecular forces between graphene and liquid metal can be increased, and the modified graphene-doped liquid metal composite material which can be uniformly and stably attached to the surface of the high-molecular polymer curing film can be obtained.
The modified graphene comprises one or more of halogen element modified reduced graphene oxide and high-active oxygen content modified graphene oxide.
The preparation process of the halogen element modified reduced graphene oxide comprises the following steps: mixing graphene oxide with the concentration of 1 mol.L -1 The halogen modification liquid is prepared from the following components in percentage by mass (0.01-0.25): 1, mixing, heating, centrifuging and drying at the temperature of 60-90 ℃ for 6-12h, wherein the halogen modification liquid contains AlI 3 、AlBr 3 、FeI 2 、FeBr 2 One or more of them.
The preparation process of the high active oxygen content modified graphene oxide comprises the following steps: putting graphene oxide into H 2 SO 4 And HNO 3 And in the mixed oxidizing solution with the same volume, carrying out reflux heating for 8-18h under a vacuum condition, wherein the heating temperature is 70-90 ℃, repeatedly washing the oxidized graphene subjected to secondary oxidation for three times by using deionized water, repeating the steps for three times, and centrifuging to obtain the high-active-oxygen-content modified oxidized graphene.
The liquid metal is gallium-based liquid metal, the content of metal gallium is 65-95 parts by mass, the content of metal indium is 5-25 parts by mass, the content of metal tin is 0-25 parts by mass, and the melting point of the gallium-based liquid metal is 3-40 ℃.
The ester solvent comprises one or more of methyl formate, ethyl formate, propyl formate, butyl formate, methyl acetate, ethyl acetate, propyl acetate and butyl acetate.
The motion state monitoring module comprises one or more monitoring modules for measuring temperature, pressure, inorganic salt/saccharide/enzyme/antibody and the like.
The invention has the beneficial effects that: a device for monitoring the motion state of the surface of a living body or the inner surface of a bionic body is designed and prepared. The device is simple to prepare, high in safety, the modified graphene-doped liquid metal composite material has good carrier adaptability, an even and stable electric connector can be prepared on the surface of a high-molecular polymer curing film, extra surface packaging treatment is not needed, and the application range is wide. Meanwhile, the prepared electric connector has high conductivity, flexibility, reliability and application range, and can meet the application requirement of monitoring the motion state of the surface of a living body or the inner surface of a bionic body.
Drawings
Fig. 1 is an SEM image of a modified graphene-doped liquid metal composite material used in example 1 of the present invention;
FIG. 2 is a coherence interferogram of an electrical connector prepared on the surface of a PVP cured film by using the modified graphene-doped liquid metal composite of example 1 of the present invention;
fig. 3 is a coherence interferogram of an electrical connector prepared on the surface of a PVP cured film without using the modified graphene-doped liquid metal in comparative example 2 of the present invention.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention and the accompanying drawings, and it is obvious that the described contents are only a part of the present invention, and all other embodiments obtained by those skilled in the art without any inventive work belong to the protection scope of the present invention.
The method aims to solve the problems that in the prior art, the electric connector directly prepared by liquid metal is poor in uniformity, high in selectivity to a carrier and narrow in application range, and the electric connector prepared by liquid metal is complex in process, poor in safety and the like. The invention designs and prepares a device for monitoring the motion state of the surface of a living body or the inner surface of the living body, which adopts high-viscosity high-molecular polymer sol to coat and dry the surface of the living body or the inner surface of the living body to obtain a high-molecular polymer cured film, then prepares an electric connector on the surface of the electric connector by using a liquid metal composite material doped with modified graphene, and attaches a motion state monitoring, energy supply and control module. The method is simple to prepare and high in safety, the modified graphene-doped liquid metal composite material has good carrier adaptability, a uniform and stable electric connector can be prepared on the surface of a high-molecular polymer curing film, and additional surface packaging treatment is not needed. Meanwhile, the prepared electric connector has high conductivity and flexibility, and can meet the application requirement of monitoring the motion state of the inner surface of a biological body surface or a bionic body.
Example 1
The invention provides a device for monitoring the motion state of the surface of a living body or the inner surface of a bionic body, which comprises the following steps:
(1) Coating PVP hydrosol on the surface of an organism or the inner surface of a bionic body, and then curing in an infrared drying mode to obtain a high molecular polymer curing film tightly attached to the surface of the organism or the inner surface of the bionic body, wherein the infrared drying power is 50W, and the infrared drying time is 5min;
(2) Preparing an electric connector (shown in figure 2) on the surface of the high-molecular polymer curing film by using the modified graphene-doped liquid metal composite material B (shown in figure 1), wherein the prepared electric connector is in a semi-solid state and can be uniformly attached to the surface of the high-molecular polymer curing film; the electric connector is prepared by an extrusion method, and the resistance of the obtained electric connector is 2 omega;
(3) A motion state monitoring, energy supplying, signal transmission and control module is attached to the surface of the electric connector, and a device for monitoring the motion state of the surface of a living body or the inner surface of the bionic body is obtained.
The viscosity of the PVP hydrosol was 4,000cp.
The bionic body is prepared by adopting a mode of photocuring 3D printing acrylic composite resin, and the acrylic composite resin is formed by mixing 1, 4-butanediol diacrylate and di (ethylene glycol) dimethacrylate.
The preparation process of the modified graphene-doped liquid metal composite material B comprises the following steps: modified graphene, liquid metal and an ester solvent are mixed according to the weight ratio of 0.03:0.1:1, uniformly mixing by adopting a ball milling mode, and then carrying out vacuum drying, wherein the ball milling speed is 100rpm, the ball milling time is 6 hours, the vacuum drying temperature is 180 ℃, and the vacuum drying time is 6 hours.
The modified graphene is halogen element modified reduced graphene oxide.
Preparation of halogen element modified reduced graphene oxideThe preparation process comprises the following steps: mixing graphene oxide with the concentration of 1 mol.L -1 The halogen modification liquid is prepared by mixing the following components in a mass ratio of 0.01:1, mixing, heating, centrifuging and drying at the temperature of 60 ℃ for 12 hours, wherein the halogen modification liquid contains AlI 3 And AlBr 3 。
The liquid metal is gallium-based liquid metal, the content of metal gallium is 70 parts by mass, the content of metal indium is 5 parts by mass, and the content of metal tin is 25 parts by mass.
The ester solvent is prepared by mixing methyl formate and methyl acetate according to the mass ratio of 1.
The motion state monitoring module comprises one or more monitoring modules for measuring temperature, pressure, inorganic salt/saccharide/enzyme/antibody and the like.
Example 2
The invention provides a device for monitoring the motion state of the surface of a living body or the inner surface of a bionic body, which comprises the following steps:
(1) Coating PVP-PEG-PLA hydrosol on the surface of an organism or the inner surface of a bionic body, and then curing in a low-temperature drying mode to obtain a high-molecular polymer curing film attached to the surface of the organism or the inner surface of the bionic body; the low-temperature drying temperature is 60 ℃, and the low-temperature drying time is 10min;
(2) Preparing an electric connector on the surface of the high-molecular polymer curing film by using the modified graphene-doped liquid metal composite material B, wherein the prepared electric connector is in a semi-solid state and can be uniformly attached to the surface of the high-molecular polymer curing film; the electric connector is prepared by an electrohydrodynamic direct writing method, and the resistance of the obtained electric connector is 1 omega;
(3) And sticking a motion state monitoring, energy supplying, signal transmission and control module on the surface of the electric connector to obtain a device for monitoring the motion state of the surface of the organism or the inner surface of the bionic body.
The PVP-PEG-PLA hydrosol had a viscosity of 1,000cp.
The bionic body is prepared by adopting a mode of photocuring 3D printing acrylic composite resin, and the acrylic composite resin is formed by mixing 1, 4-butanediol dimethacrylate, 2-hydroxyethyl methacrylate and hydroxypropyl methacrylate.
The preparation process of the modified graphene-doped liquid metal composite material B comprises the following steps: modified graphene, liquid metal and an ester solvent are mixed according to the weight ratio of 0.001:0.2:1, uniformly mixing the raw materials in a ball milling mode, and performing vacuum drying, wherein the ball milling speed is 300rpm, the ball milling time is 24 hours, the vacuum drying temperature is 120 ℃, and the vacuum drying time is 4 hours.
The modified graphene is high-active oxygen content modified graphene oxide.
The preparation process of the high active oxygen content modified graphene oxide comprises the following steps: placing graphene oxide in H 2 SO 4 And HNO 3 And (3) in the mixed oxidizing solution with the same volume, heating for 18 hours under a vacuum condition at the heating temperature of 70 ℃, repeatedly washing the oxidized graphene subjected to secondary oxidation for three times by using deionized water, repeating the steps for three times, and centrifuging to obtain the modified oxidized graphene with high active oxygen content.
The liquid metal is gallium-based liquid metal, the content of metal gallium is 80 parts by mass, the content of metal indium is 10 parts by mass, and the content of metal tin is 10 parts by mass.
The ester solvent is a mixture of ethyl formate and ethyl acetate according to a mass ratio of 1.
The motion state monitoring module comprises one or more monitoring modules for measuring temperature, pressure, inorganic salt/saccharide/enzyme/antibody and the like.
Example 3
The invention provides a device for monitoring the motion state of the surface of a living body or the inner surface of a bionic body, which comprises the following steps:
(1) Coating PVP-PLA hydrosol on the surface of an organism or the inner surface of a bionic body, and then curing in an infrared drying mode to obtain a high molecular polymer curing film which is tightly attached to the surface of the organism or the inner surface of the bionic body, wherein the infrared drying power is 10W, and the infrared drying time is 3min;
(2) Preparing an electric connector on the surface of the high-molecular polymer curing film by using the modified graphene-doped liquid metal composite material B, wherein the prepared electric connector is in a semi-solid state and can be uniformly attached to the surface of the high-molecular polymer curing film; the electric connector is prepared by a writing brush drawing method, and the resistance of the obtained electric connector is 2 omega;
(3) A motion state monitoring, energy supplying, signal transmission and control module is attached to the surface of the electric connector, and a device for monitoring the motion state of the surface of a living body or the inner surface of the bionic body is obtained.
The PVP-PLA hydrosol had a viscosity of 2,000cp.
The bionic body is prepared by adopting a mode of photocuring 3D printing acrylic composite resin, and the acrylic composite resin is formed by mixing di (ethylene glycol) dimethacrylate and 1, 4-butanediol dimethacrylate.
The preparation process of the modified graphene-doped liquid metal composite material B comprises the following steps: modified graphene, liquid metal and an ester solvent are mixed according to the weight ratio of 0.001:0.1:1, uniformly mixing the raw materials in a ball milling mode, and performing vacuum drying, wherein the ball milling rotation speed is 150rpm, the ball milling time is 12 hours, the vacuum drying temperature is 140 ℃, and the vacuum drying time is 5 hours.
The modified graphene is halogen element modified reduced graphene oxide.
The preparation process of the halogen element modified reduced graphene oxide comprises the following steps: mixing graphene oxide with the concentration of 1 mol.L -1 The halogen modification liquid is prepared by mixing the following components in a mass ratio of 0.2:1, heating, centrifuging and drying after mixing, wherein the heating temperature is 90 ℃, the heating time is 6h, and the halogen modification liquid contains AlI 3 And FeI 2 。
The liquid metal is gallium-based liquid metal, the content of metal gallium is 95 parts by mass, and the content of metal indium is 5 parts by mass.
The ester solvent is formed by mixing butyl formate and propyl acetate according to a mass ratio of 1.
The motion state monitoring module comprises one or more monitoring modules for measuring temperature, pressure, inorganic salt/saccharide/enzyme/antibody and the like.
Example 4
The invention provides a device for monitoring the motion state of the surface of a living body or the inner surface of a bionic body, which comprises the following steps:
(1) Coating PVP-PEG hydrosol on the surface of an organism or the inner surface of a bionic body, and then curing in a low-temperature drying mode to obtain a high-molecular polymer curing film tightly attached to the surface of the organism or the inner surface of the bionic body, wherein the low-temperature drying temperature is 40 ℃, and the low-temperature drying time is 5min;
(2) Preparing an electric connector on the surface of the high-molecular polymer curing film by using the modified graphene-doped liquid metal composite material B, wherein the prepared electric connector is in a semi-solid state and can be uniformly attached to the surface of the high-molecular polymer curing film; the electric connector is prepared by an electrohydrodynamic direct writing method, and the resistance of the obtained electric connector is 1.5 omega;
(3) A motion state monitoring, energy supplying, signal transmission and control module is attached to the surface of the electric connector, and a device for monitoring the motion state of the surface of a living body or the inner surface of the bionic body is obtained.
The viscosity of the PVP-PEG hydrosol was 3,000cp.
The bionic body is prepared by adopting a mode of photocuring 3D printing acrylic composite resin, and the acrylic composite resin is formed by mixing 1, 4-butanediol diacrylate, 1, 4-butanediol dimethacrylate and hydroxypropyl methacrylate.
The preparation process of the modified graphene-doped liquid metal composite material B comprises the following steps: modified graphene, liquid metal and an ester solvent are mixed according to the weight ratio of 0.03:0.2:1, uniformly mixing the materials in a ball milling mode, and performing vacuum drying, wherein the ball milling rotation speed is 220rpm, the ball milling time is 18 hours, the vacuum drying temperature is 160 ℃, and the vacuum drying time is 4.5 hours.
The modified graphene is high-active oxygen content modified graphene oxide.
The preparation process of the high active oxygen content modified graphene oxide comprises the following steps: putting graphene oxide into H 2 SO 4 And HNO 3 In the mixed oxidizing solution with the same volume, reflux heating is carried out for 8 hours under the vacuum condition, the heating temperature is 90 ℃, and then the oxidized graphene after secondary oxidation is repeatedly washed for three times by deionized waterRepeating the steps for three times, and centrifuging to obtain the high-active-oxygen-content modified graphene oxide.
The liquid metal is gallium-based liquid metal, the content of metal gallium is 65 parts by mass, and the content of metal indium is 25 parts by mass.
The ester solvent is prepared by mixing propyl formate and butyl acetate according to a mass ratio of 1.
The motion state monitoring module comprises one or more monitoring modules for measuring temperature, pressure, inorganic salt/saccharide/enzyme/antibody and the like.
Comparative example 1
The technical scheme of the embodiment 1 is changed as follows: the high-molecular polymer curing film is not coated on the surface of a biological body or the inner surface of a bionic body by using high-molecular polymer sol, the modified graphene-doped liquid metal composite material is directly prepared on the surface of the biological body or the inner surface of the bionic body, and a small amount of metal elements in the liquid metal can be immersed into the biological body through the body surface, so that certain potential safety hazards are caused. Moreover, the modified graphene-doped liquid metal composite material cannot directly prepare a uniform and coherent high-quality electric connector on the surface of a living body, and the reliability of monitoring the motion state is reduced.
Comparative example 2
The technical scheme of the embodiment 1 is changed as follows: the electric connector prepared by using the liquid metal composite material doped with the modified graphene is not used, the resistance of the obtained electric connector is 50 omega, and the uniform and continuous high-quality electric connector cannot be prepared on the surface of a high-molecular polymer curing film. Fig. 3 is a coherence interferogram of an electrical connector prepared on the surface of a PVP cured film without using the modified graphene-doped liquid metal in comparative example 2 of the present invention.
From the above, the device for monitoring the motion state of the inner surface of the biological body surface or the bionic body, which is prepared by the embodiment of the invention, has the advantages of simple preparation process and high safety, and the modified graphene-doped liquid metal composite material has good carrier adaptability, can prepare a uniform and stable electric connector on the surface of a high-molecular polymer curing film without additional surface packaging treatment. Meanwhile, the prepared electric connector has high conductivity and flexibility, and can meet the application requirement of monitoring the motion state of the inner surface of a biological body surface or a bionic body.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Various changes may be made by those skilled in the art based on the embodiments of the invention, and any changes which are equivalent or similar to the embodiments of the invention are intended to be within the scope of the invention.
Claims (8)
1. A device for monitoring the motion state of the surface of a living body or the inner surface of the living body is characterized in that the preparation method of the device comprises the following steps:
(1) Coating the high-molecular polymer sol A on the surface of an organism or the inner surface of a bionic body, drying and curing to obtain a high-molecular polymer curing film tightly attached to the surface of the organism or the inner surface of the bionic body; the high molecular polymer sol comprises one or more of PVP hydrosol, PVP-PEG hydrosol, PVP-PLA hydrosol and PVP-PEG-PLA hydrosol, and the viscosity of the high molecular polymer sol is 1,000-4,000 cp;
(2) Preparing an electric connector on the surface of the high molecular polymer curing film by using the modified graphene-doped liquid metal composite material B, wherein the prepared electric connector is in a semi-solid state and is uniformly attached to the surface of the high molecular polymer curing film; the method for preparing the electric connector by using the modified graphene-doped liquid metal composite material B comprises one or more of extrusion, electrohydrodynamic direct writing and writing brush drawing; the preparation process of the modified graphene-doped liquid metal composite material B comprises the following steps: modified graphene, liquid metal and an ester solvent are mixed according to the weight ratio of (0.001-0.03): (0.1-0.2): 1, and performing vacuum drying at the temperature of 120-180 ℃ for 4-6h;
(3) And (3) sticking a motion state monitoring, energy supplying, signal transmission and control module on the surface of the electric connector obtained in the step (2) to obtain a device for monitoring the motion state of the surface of the living body or the inner surface of the bionic body.
2. The device according to claim 1, wherein the biomimetic in step (1) is prepared by photo-curing 3D printing acrylic composite resin mixed by two or more of 1, 4-butanediol diacrylate, di (ethylene glycol) dimethacrylate, 1, 4-butanediol dimethacrylate, 2-hydroxyethyl methacrylate and hydroxypropyl methacrylate.
3. The apparatus of claim 1, wherein the modified graphene in step (2) comprises one or both of a halogen modified reduced graphene oxide and a high active oxygen modified graphene oxide.
4. The device according to claim 3, wherein the preparation process of the halogen element modified reduced graphene oxide comprises the following steps: mixing graphene oxide with the concentration of 1 mol.L -1 The halogen modification liquid is prepared from the following components in percentage by mass (0.01-0.25): 1, mixing, heating, centrifuging and drying at the temperature of 60-90 ℃ for 6-12h, wherein the halogen modification liquid contains AlI 3 、AlBr 3 、FeI 2 、FeBr 2 One or more of them.
5. The device according to claim 3, wherein the preparation process of the high active oxygen content modified graphene oxide is as follows: putting graphene oxide into H 2 SO 4 And HNO 3 And (3) in the mixed oxidizing solution with the same volume, carrying out reflux heating for 8-18h under a vacuum condition, wherein the heating temperature is 70-90 ℃, then repeatedly washing the oxidized graphene after secondary oxidation by using deionized water, repeating the steps for three times, and centrifuging to obtain the high-active-oxygen-content modified oxidized graphene.
6. The apparatus according to claim 1, wherein the liquid metal in step (2) is a gallium-based liquid metal, the gallium content is 65 to 95 parts by mass, the indium content is 5 to 25 parts by mass, the tin content is 0 to 25 parts by mass, and the melting point of the gallium-based liquid metal is 3 to 40 ℃.
7. The device according to claim 1, wherein the ester solvent comprises one or more of methyl formate, ethyl formate, propyl formate, butyl formate, methyl acetate, ethyl acetate, propyl acetate, and butyl acetate.
8. The device according to claim 1, wherein the motion state monitoring module in step (3) comprises one or more of monitoring modules for measuring temperature, pressure, inorganic salt/sugar/enzyme/antibody substance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111054087.7A CN113768496B (en) | 2021-09-09 | 2021-09-09 | Device for monitoring motion state of biological body surface or bionic body inner surface |
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| CN202111054087.7A CN113768496B (en) | 2021-09-09 | 2021-09-09 | Device for monitoring motion state of biological body surface or bionic body inner surface |
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| CN113768496B true CN113768496B (en) | 2023-02-03 |
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