CN111745875A - Method for integrating graphene biosensor circuit in condom or latex glove process - Google Patents
Method for integrating graphene biosensor circuit in condom or latex glove process Download PDFInfo
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- CN111745875A CN111745875A CN202010564349.3A CN202010564349A CN111745875A CN 111745875 A CN111745875 A CN 111745875A CN 202010564349 A CN202010564349 A CN 202010564349A CN 111745875 A CN111745875 A CN 111745875A
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- circuit
- condom
- latex
- latex glove
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/003—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/14—Dipping a core
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/20—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. moulding inserts or for coating articles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/045—Circuits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/4842—Outerwear
- B29L2031/4864—Gloves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/753—Medical equipment; Accessories therefor
- B29L2031/7538—Condoms
Abstract
The invention relates to the field of material integration and sensors, in particular to a method for integrating a graphene biosensor circuit in a condom or latex glove process. Dipping the outer surface of a hollow condom or latex glove polymer mould into a graphene oxide solution, and dipping, drying and reducing to form a reduced graphene oxide membrane. And (3) processing a circuit by reducing the graphene oxide film by using a laser pair. And connecting the ultrathin signal chip into the circuit, and reversibly packaging the circuit. Dipping the polymer mould into the natural latex to form the outer rubber film. And tearing the reversible package, coating the biological monitoring substance on the circuit area, completing the molding of the sensing area of the outer adhesive film, and then performing the reversible package. And buckling the other glass mold on the outer adhesive film and fixing, pouring the solvent into the inner cavity of the polymer mold, dissolving the polymer mold inside, and cleaning after pouring out the solvent. Pouring natural latex, pouring out and drying to form an inner glue film. And taking the whole body out of the glass mold to obtain the integrated circuit composite product.
Description
Technical Field
The invention relates to the field of material integration and sensors, in particular to a method for integrating a graphene biosensor circuit in a condom or latex glove process.
Background
Most of the materials of the latex gloves and condoms are natural latex, and the common characteristic of the latex gloves and condoms is that the latex gloves and condoms have a higher probability of contacting biological body fluid. Both latex gloves and condoms have no detection function for body fluids carrying viruses or pathogenic bacteria.
The graphene is a two-dimensional nano material, has extremely high sheet diameter/thickness ratio, and has good toughness and high conductivity.
How to integrate the graphene sensing circuit with the condom or latex glove in the traditional condom or latex glove dipping process to form a flexible, stable and highly sensitive product with biological detectable sensing is a significant innovation work and an innovation process thought with market potential.
Disclosure of Invention
The invention aims to provide a method for integrating a graphene biosensor circuit in a condom or latex glove process, and the obtained condom or latex glove has the same flexibility and comfort level as the traditional product, is inert and is not allergic. Meanwhile, the kit also has the function of detecting pathogenic bacteria or viruses.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for integrating a graphene biosensor circuit in a condom or latex glove process, comprising the steps of:
(1) dipping the outer surface of a hollow condom or latex glove polymer mold into a graphene oxide aqueous solution, lifting, then putting into a reducing agent for reduction, lifting, and drying to form a reduced graphene oxide film, wherein the reduced graphene oxide film is attached to the outer surface of the polymer mold;
(2) processing a circuit by using laser to reduce the graphene oxide film, connecting an ultrathin signal chip into the circuit, and reversibly packaging the circuit;
(3) dipping a polymer mold into natural latex, lifting, drying and repeating for several times to form an outer rubber film;
(4) tearing the reversible package, coating the biological monitoring substance on the circuit area to complete the molding of the sensing area of the outer adhesive film, and then performing the reversible package on the circuit;
(5) buckling the other glass mold on the outer adhesive film and fixing, inverting, pouring organic solvent into the inner cavity of the polymer mold, dissolving the inner polymer mold, pouring out the organic solvent, and cleaning the inner cavity of the condom or latex glove;
(6) pouring natural latex into the inner cavity of the condom or the latex glove, pouring out and drying the latex, and repeating the steps for a plurality of times to form an inner rubber film.
The method for integrating the graphene biosensor circuit in the condom or latex glove process comprises the step (1), wherein the condom or latex glove high-molecular mold is made of transparent polystyrene, and the mass concentration of the graphene oxide aqueous solution is 0.0001-0.001%.
The method for integrating the graphene biosensor circuit in the condom or latex glove process comprises the following steps of (1), reducing graphene oxide by using a chemical reducing agent, wherein the chemical reducing agent is ascorbic acid, hydroiodic acid and water in a mass ratio of 1: 0.5-2: and (3) reducing the 30-50 aqueous solution at the temperature of 50-80 ℃ for 2-60 minutes.
The method for integrating the graphene biosensor circuit in the condom or latex glove process comprises the step (1), dipping and lifting → reduction → drying process is repeated for 2-30 times, and the thickness of the reduced graphene oxide film is 0.5-20 μm.
The method for integrating the graphene biosensor circuit in the condom or latex glove process comprises the step (2), wherein the circuit comprises a crossed microelectrode array circuit, and the thickness of the ultrathin signal chip is 0.5-20 mu m.
The method for integrating the graphene biosensor circuit in the condom or latex glove process comprises the step (3), dipping and lifting → repeating the drying process for 2-10 times, wherein the thickness of the formed outer rubber film is 10-25 μm.
In the method for integrating the graphene biosensor circuit in the condom or latex glove process, in the step (4), the biological monitoring substance is an immobilized biological sensitive material and comprises enzymes, antibodies, antigens, microorganisms, cells, tissues or nucleic acid bioactive substances, the corresponding bacteria or virus types are detected, and the coating thickness is 5-40 μm.
The graphene biosensor circuit is integrated in a condom or latex glove process, in the step (2) and the step (4), the reversible packaging film is a single-sided electrostatic adhesive film of 2-10 mu m transparent poly-4-methyl-1-pentene or polyvinylidene chloride, and can be repeatedly torn and bonded.
The method for integrating the graphene biosensor circuit in the condom or latex glove process comprises the following steps of (5), dissolving organic solvents used by a high polymer mold, such as ethyl acetate, higher alcohols and methyl ethyl ketone, according to a ratio of 1: 1: 0.5 to 1 mass ratio of a mixed solvent.
The method for integrating the graphene biosensor circuit in the condom or latex glove process comprises the step (6), natural latex is poured over → natural latex is poured out → drying is repeatedly carried out for 2-10 times, and the thickness of the formed inner rubber film is 10-25 mu m.
The design idea of the invention is as follows:
after the graphene oxide is reduced, the graphene oxide has good conductivity and flexibility, and can be well attached to a flexible latex film. Meanwhile, the reduced graphene oxide film is suitable for being processed into a circuit by laser etching, the reduced graphene oxide film has biological safety, and biochemical substances are stable on the surface of the film. The stable biological flexible sensing membrane with high conductivity and high sensitivity can be prepared by compounding a circuit etched by reduced graphene oxide and latex.
Compared with the prior art, the invention has the advantages and beneficial effects that:
1. the graphene high-sensitivity sensing circuit is small in resistance and high in sensitivity after being compositely integrated with latex. The overall resistance is 1 omega-8 omega.
2. The thickness of the film formed by compounding and integrating the graphene high-sensitivity sensing circuit and the latex can be very thin, the thinnest integral thickness can reach 20.5 mu m, and the film can be repeatedly folded without foreign body sensation. The film can be repeatedly rolled and folded for at least more than 200 times without damage, the resistance value basically keeps stable, and the variation is +/-3 omega.
3. The invention is simple to use, and the function detection state is started after the reversible packaging film is torn. The resistance change of the graphene cross microelectrode array circuit is influenced through the biochemical reaction of the antibody and the biological monitoring substance, so that the current change response can be obtained. The response signal can be acquired by the signal chip and sent to the user terminal equipment, such as: mobile phones, computers, etc.
Detailed Description
In the specific implementation process, firstly, the outer surface of a hollow condom or latex glove polymer mold is dipped in a graphene oxide aqueous solution, the graphene oxide aqueous solution is lifted and then put into a reducing agent, the graphene oxide film is lifted and dried, and the reduced graphene oxide film is formed repeatedly for several times and attached to the outer surface of the polymer mold, and the graphene oxide film has the following functions: as the basic board surface of the conductive circuit. A laser pair is adopted to process a circuit for reducing the graphene oxide film, and the circuit comprises an intersection microelectrode array circuit (IDA). Then, an ultrathin signal chip (with the thickness of 0.5-20 μm) is connected into the circuit, and the IDA is packaged reversibly, so that the IDA can be torn off repeatedly for processing and manufacturing. Dipping the polymer mould into the natural latex, repeatedly dipping and drying to form the outer rubber film. And tearing the reversible package, coating the biological monitoring substance on the IDA area to complete the formation of the sensing area of the outer adhesive film, and then performing the reversible package on the IDA. And then, buckling the other glass mold on the outer adhesive film and fixing, turning over the mold to enable the opening of the inner cavity of the polymer mold to be upward, pouring the organic solvent into the inner cavity of the polymer mold, dissolving the inner polymer mold, pouring out the organic solvent and cleaning. Then, after the inner cavity of the condom or the latex glove is filled with natural latex, the natural latex is poured out and dried to form a layer of glue film. Repeating the steps for several times, increasing the thickness of the inner adhesive film, and taking out the whole from the glass mold to obtain the integrated circuit composite product.
The present invention will be described in further detail with reference to examples and test results.
Example 1
In this embodiment, a method for integrating a graphene biosensor circuit in a condom or latex glove process is as follows:
firstly, dipping the outer surface of a transparent hollow polystyrene mold of a condom or a latex glove into a graphene oxide aqueous solution, wherein the mass concentration of the graphene oxide aqueous solution is 0.0004%. After dipping and lifting, adding ascorbic acid, hydroiodic acid and water according to the mass ratio of 1: 2: 50, the reduction temperature is 60 ℃, and the reduction time is 5 minutes. And lifting and drying the film, and repeating the drying for 3 times to form a reduced graphene oxide film, wherein the reduced graphene oxide film is attached to the outer surface of the high-molecular mold, and the thickness of the reduced graphene oxide film is 4 micrometers. Circuitry, including interdigitated microelectrode array circuitry (IDA), is processed using a laser pair to reduce the graphene oxide film. The ultrathin signal chip is connected into a circuit, and the IDA is packaged reversibly by using a 5-micron transparent poly-4-methyl-1-pentene single-sided electrostatic adhesive film which can be repeatedly torn and bonded. Dipping a macromolecule mould into natural latex with the mass concentration of rubber of 35 percent, drying, repeating for 3 times, and forming an outer rubber film to be 15 mu m. And tearing the reversible packaging, coating the biological monitoring substance with the thickness of 35 mu m on the IDA area to complete the forming of the sensing area of the outer rubber film, and then recovering the reversible packaging of the IDA. And (2) buckling the other glass mold on the outer adhesive film and fixing, turning the mold upside down to enable the opening of the inner cavity of the polymer mold to be upward, and pouring organic solvent into the inner cavity of the polymer mold, wherein the organic solvent is ethyl acetate, higher alcohols (such as isobutanol) and methyl ethyl ketone according to the proportion of 1: 1: 1 mass proportion of mixed solvent, dissolving the polystyrene high molecular mould, pouring out the organic solvent, and cleaning with pure water. Then, the inner cavity of the condom or the latex glove is filled with natural latex, and then the latex is poured out and dried to form a layer of glue film. Repeating the steps for 3 times, increasing the thickness of the inner latex film to 15 mu m, and taking out the whole from the glass mold to obtain the product of the integrated composite of the graphene and the latex product.
The product test result is: the resistance of the graphene high-sensitivity sensing circuit after the composite integration with latex is small, and the sensitivity is high. The sheet had an overall resistance of 4. omega. and an overall film thickness of 34 μm, and was repeatedly folded without foreign body sensation. The film is not damaged after being repeatedly rolled and folded for 200 times, and the resistance value is basically kept stable and changes +/-1 omega.
Example 2
In this embodiment, a method for integrating a graphene biosensor circuit in a condom or latex glove process is as follows:
firstly, dipping the outer surface of a transparent hollow polystyrene mold of a condom or a latex glove into a graphene oxide aqueous solution, wherein the mass concentration of the graphene oxide aqueous solution is 0.0008%. After dipping and lifting, adding ascorbic acid, hydriodic acid and water according to the mass ratio of 1: 1: 50 of the reducing agent, the reduction temperature is 70 ℃, and the reduction time is 10 minutes. And lifting and drying the film, and repeating the drying for 4 times to form a reduced graphene oxide film, wherein the reduced graphene oxide film is attached to the outer surface of the high polymer mold, and the thickness of the reduced graphene oxide film is 8 microns. Circuitry, including interdigitated microelectrode array circuitry (IDA), is processed using a laser pair to reduce the graphene oxide film. The ultrathin signal chip is connected into a circuit, and the IDA is packaged reversibly by using a 6 mu m transparent polyvinylidene chloride single-sided electrostatic adhesive film which can be repeatedly torn and bonded. Dipping a high molecular mold into natural latex with the mass concentration of rubber of 35 percent, drying, repeating for 4 times, and forming an outer rubber film with the thickness of 20 mu m. And tearing the reversible packaging, coating the biological monitoring substance with the thickness of 30 mu m on the IDA area to complete the forming of the sensing area of the outer rubber film, and then recovering the reversible packaging of the IDA. And (2) buckling the other glass mold on the outer adhesive film and fixing, turning the glass mold upside down to enable the opening of the inner cavity of the polymer mold to be upward, and pouring organic solvent into the inner cavity of the polymer mold, wherein the organic solvent is ethyl acetate, higher alcohols (such as isoamyl alcohol) and methyl ethyl ketone according to the proportion of 1: 1: 0.5 mass ratio of mixed solvent, dissolving the polystyrene high molecular mould, pouring out the organic solvent, and cleaning with pure water. Then, the inner cavity of the condom or the latex glove is filled with natural latex, and then the latex is poured out and dried to form a layer of glue film. Repeating the steps for 4 times, increasing the thickness of the inner rubber film to 20 mu m, and taking out the whole from the glass mold to obtain the product of the integrated composite of the graphene and the rubber latex product.
The product test result is: the resistance of the graphene high-sensitivity sensing circuit after the composite integration with latex is small, and the sensitivity is high. The overall resistance was 3. omega. and the overall film thickness was 48 μm, and the film could be repeatedly folded without foreign body sensation. The film is not damaged after being repeatedly rolled and folded for 200 times, and the resistance value is basically kept stable and changes +/-1 omega.
Example 3
In this embodiment, a method for integrating a graphene biosensor circuit in a condom or latex glove process is as follows:
firstly, dipping the outer surface of a transparent hollow polystyrene mold of a condom or a latex glove into a graphene oxide aqueous solution, wherein the mass concentration of the graphene oxide aqueous solution is 0.0006%. After dipping and lifting, adding ascorbic acid, hydroiodic acid and water according to the mass ratio of 1: 0.5: 30 ℃ at a reduction temperature of 50 ℃ for a reduction time of 30 minutes. And lifting and drying the film, repeating the drying for 5 times to form a reduced graphene oxide film, wherein the reduced graphene oxide film is attached to the outer surface of the high polymer mold, and the thickness of the reduced graphene oxide film is 6 microns. Circuitry, including interdigitated microelectrode array circuitry (IDA), is processed using a laser pair to reduce the graphene oxide film. The ultrathin signal chip is connected into a circuit, and the IDA is packaged reversibly by using a 4-micron transparent poly-4-methyl-1-pentene single-sided electrostatic adhesive film which can be repeatedly torn and bonded. Dipping a high molecular mold into natural latex with the rubber mass concentration of 28%, drying, repeating for 5 times, and forming an outer rubber film with the thickness of 25 mu m. And tearing the reversible packaging, coating the biological monitoring substance with the thickness of 20 mu m on the IDA area to complete the forming of the sensing area of the outer rubber film, and then recovering the reversible packaging of the IDA. And (2) buckling the other glass mold on the outer adhesive film and fixing, turning the mold upside down to enable the opening of the inner cavity of the polymer mold to be upward, and pouring organic solvents into the inner cavity of the polymer mold, wherein the organic solvents are ethyl acetate, higher alcohols (such as propanol) and methyl ethyl ketone according to the proportion of 1: 1: 1 mass proportion of mixed solvent, dissolving the polystyrene high molecular mould, pouring out the organic solvent, and cleaning with pure water. Then, the inner cavity of the condom or the latex glove is filled with natural latex, and then the latex is poured out and dried to form a layer of glue film. Repeating the steps for 5 times, increasing the thickness of the inner rubber film to 25 mu m, and taking out the whole from the glass mold to obtain the product of the integrated composite of the graphene and the rubber film.
The product test result is: the resistance of the graphene high-sensitivity sensing circuit after the composite integration with latex is small, and the sensitivity is high. The overall resistance was 2. omega. and the overall film thickness was 56 μm, and the film was repeatedly foldable without foreign body sensation. The film is not damaged after being repeatedly rolled and folded for 200 times, and the resistance value is basically kept stable and changes +/-1 omega.
Claims (10)
1. A method for integrating a graphene biosensor circuit in a condom or latex glove process is characterized by comprising the following steps:
(1) dipping the outer surface of a hollow condom or latex glove polymer mold into a graphene oxide aqueous solution, lifting, then putting into a reducing agent for reduction, lifting, and drying to form a reduced graphene oxide film, wherein the reduced graphene oxide film is attached to the outer surface of the polymer mold;
(2) processing a circuit by using laser to reduce the graphene oxide film, connecting an ultrathin signal chip into the circuit, and reversibly packaging the circuit;
(3) dipping a polymer mold into natural latex, lifting, drying and repeating for several times to form an outer rubber film;
(4) tearing the reversible package, coating the biological monitoring substance on the circuit area to complete the molding of the sensing area of the outer adhesive film, and then performing the reversible package on the circuit;
(5) buckling the other glass mold on the outer adhesive film and fixing, inverting, pouring organic solvent into the inner cavity of the polymer mold, dissolving the inner polymer mold, pouring out the organic solvent, and cleaning the inner cavity of the condom or latex glove;
(6) pouring natural latex into the inner cavity of the condom or the latex glove, pouring out and drying the latex, and repeating the steps for a plurality of times to form an inner rubber film.
2. The method for integrating the graphene biosensor circuit in the condom or latex glove process according to claim 1, wherein in the step (1), the material of the polymer mold of the condom or latex glove is transparent polystyrene, and the mass concentration of the graphene oxide aqueous solution is 0.0001-0.001%.
3. The method for integrating the graphene biosensor circuit in the condom or latex glove process according to claim 1, wherein in the step (1), the reduction of the graphene oxide uses a chemical reducing agent, and the chemical reducing agent is ascorbic acid, hydroiodic acid and water in a mass ratio of 1: 0.5-2: and (3) reducing the 30-50 aqueous solution at the temperature of 50-80 ℃ for 2-60 minutes.
4. The method for integrating the graphene biosensor circuit in the condom or latex glove process according to claim 1, wherein the dipping-up → reduction → drying process is repeated for 2-30 times in the step (1), and the thickness of the reduced graphene oxide film is 0.5-20 μm.
5. The method for integrating the graphene biosensor circuit in the condom or latex glove process according to claim 1, wherein in the step (2), the circuit comprises a crossed microelectrode array circuit, and the thickness of the ultrathin signal chip is 0.5-20 μm.
6. The method for integrating the graphene biosensor circuit in the condom or latex glove process according to claim 1, wherein in the step (3), the dipping and lifting → drying process is repeated for 2-10 times, and the thickness of the formed external adhesive film is 10-25 μm.
7. The method for integrating the graphene biosensor circuit in the condom or latex glove process according to claim 1, wherein in the step (4), the biological monitoring substance is an immobilized biological sensitive material comprising enzymes, antibodies, antigens, microorganisms, cells, tissues or nucleic acid bioactive substances, and is coated to a thickness of 5-40 μm for detecting corresponding bacteria or virus types.
8. The method for integrating the graphene biosensor circuit in the condom or latex glove process according to claim 1, wherein in the step (2) and the step (4), the reversible packaging film is a 2-10 μm transparent single-sided electrostatic adhesive film of poly-4-methyl-1-pentene or polyvinylidene chloride, and can be repeatedly torn and bonded.
9. The method for integrating the graphene biosensor circuit in the condom or latex glove process according to claim 1, wherein in the step (5), the organic solvent used for dissolving the polymer mold is ethyl acetate, higher alcohols, methyl ethyl ketone according to a ratio of 1: 1: 0.5 to 1 mass ratio of a mixed solvent.
10. The method for integrating the graphene biosensor circuit in the condom or latex glove process according to claim 1, wherein in the step (6), the process of pouring natural latex → drying is repeated for 2-10 times, and the thickness of the inner rubber film is 10-25 μm.
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| CN202010564349.3A CN111745875B (en) | 2020-06-19 | 2020-06-19 | Method for integrating graphene biosensor circuit in condom or latex glove process |
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| CN202010564349.3A CN111745875B (en) | 2020-06-19 | 2020-06-19 | Method for integrating graphene biosensor circuit in condom or latex glove process |
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| CN111745875B (en) | 2022-06-14 |
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