380 results about "PEDOT:PSS" patented technology

The invention provides a full hydrogel neural electrode which is composed of four layers of hydrogel, namely a PSFD hydrogel layer, an LPPDMEAs layer, a PSFD hydrogel layer and an MHD layer. The invention further provides a preparation method and application of the full-hydrogel neural electrode. According to the invention, a PEDOT: PSS hydrogel conductive path with ultrahigh conductivity is provided, so that the recording capability of the PEDOT: PSS hydrogel conductive path is achieved compared with that of a metal electrode; according to the full-hydrogel neural electrode disclosed by the invention, due to tight interlayer combination, excellent interface compliance is ensured by introducing dopamine into each layer of the full-hydrogel neural electrode, so that the full-hydrogel neural electrode can be attached to a complex geometrical shape of a soft nervous tissue, and interface mismatching among a conductive layer, a packaging layer, a shielding layer and a tissue-electrode interface is avoided; the natural polymer packaging layer improves the compatibility, and the electromagnetic shielding layer is used for improving the signal-to-noise ratio. The full-hydrogel neural electrode can provide artificial electrical stimulation for the cerebral cortex of a rat during epileptic seizure, and the prepared full-hydrogel neural electrode has the potential to become a valuable tool for better understanding the development and functions of brain diseases and neurodegenerative diseases and treating the neurodegenerative diseases.

The invention discloses a preparation method of PEDOT: PSS (poly (3, 4-ethylenedioxythiophene): poly (styrenesulfonate))-based composite fiber with silver nanoparticles loaded on the surface. The method comprises the following steps: uniformly mixing a silver nanowire solution with a PEDOT: PSS solution, or uniformly mixing the silver nanowire solution, the PEDOT: PSS solution and a polymer solution to obtain a spinning solution; extruding the spinning solution into a coagulating bath through a wet spinning process and soaking to obtain nascent composite fibers; and drying the nascent composite fiber to obtain the PEDOT: PSS-based composite fiber of which the surface is loaded with silver nanoparticles and the interior contains silver nanowires. The interior and surface structures of the PEDOT: PSS fiber are simultaneously modified, the interior of the fiber contains a silver nanowire structure, and the surface of the fiber has a silver nanoparticle structure. The composite fiber has the characteristics of ultra-sensitive SERS sensing capability, high conductivity, electric heating, molten drop resistance and antibacterial property.

The invention discloses a preparation method of a salt-resistant polyurethane sponge evaporator for a photo-thermal interface, which comprises the following steps: taking polyurethane sponge as a support framework, taking polyvinyl alcohol as a precursor solution, adding carbon black and PEDOT: PSS (poly (3, 4-ethylenedioxythiophene): poly (styrenesulfonate)) into the precursor solution as photo-thermal materials, and synthesizing the salt-resistant polyurethane sponge evaporator by an extrusion thermal crosslinking freeze-drying method. According to the obtained evaporator, the excellent photothermal conversion performance of carbon black / PEDOT: PSS and a porous framework structure mainly comprising polyurethane / polyvinyl alcohol are fully utilized, the water absorption, the mechanical performance and the photothermal conversion efficiency of the evaporator are effectively improved, the heat conductivity is reduced, it is guaranteed that salt crystals do not appear inside and on the surface of the evaporator while efficient interface evaporation is achieved, and the service life of the evaporator is prolonged. The device can be widely applied to solar interface evaporation in saline water, actual seawater or high-salinity wastewater so as to obtain clean water resources.

The invention discloses nano-porous aerogel based on carboxymethyl chitosan as well as a preparation method and application of the nano-porous aerogel, and belongs to the technical field of biomass-based aerogel. The aerogel is prepared from the following raw materials in parts by weight: 2.5 parts of deionized water, 0.075 part of carboxymethyl chitosan (CMC), 0.0075 to 0.0225 part of carboxylated multi-walled carbon nanotubes (C-CNT), 0.01125 part of glutaraldehyde (GA), 0.01 part of poly (3, 4-ethylenedioxythiophene)-poly (styrene sulfonic acid) (PEDOT: PSS) and 10 parts of dimethyl sulfoxide (DMSO). According to the preparation method, CM C is used as a matrix, C-CNT is used as an internal conductive material and a strength enhancing material, hydrogel is formed under the action of a cross-linking agent GA, and CMC / C-CNT aerogel is prepared through directional freeze drying; cMC / C-CNT is taken as a substrate, then PEDOT: PSS is dip-coated to obtain CMC / C-CNT / PEDOT: PSS, the CMC / C-CNT / PEDOT: PSS is taken as an external conductive substance, the CMC / C-CNT / PEDOT: PSS and internal C-CNT form a double-conductive network, aerogel with excellent conductive performance and mechanical performance is prepared, the prepared aerogel is used for preparing an aerogel sensor, and the prepared sensor has high mechanical performance and high electrical performance.

The invention belongs to the field of conductive films, and discloses a preparation method of a conductive film based on PEDOT: PSS and silver nanowires, and the preparation method specifically comprises the following steps: after carrying out surface hydroxylation treatment on the silver nanowires AgNWs, under the action of a silane coupling agent 3-(trimethoxymethylsilyl) propyl methacrylate TMSPMA, mixing the silver nanowires AgNWs with PEDOT: PSS to prepare a PEDOT: PSS / AgNWs base solution; the preparation method comprises the following steps: adjusting the pH value of a base solution to be nearly neutral through sodium citrate, then mixing the base solution with a PEA emulsion, carrying out spin coating to form a film, and finally, carrying out ultrafast laser treatment to improve the conductivity so as to obtain the conductive film based on PEDOT: PSS and silver nanowires. The conductive film provided by the invention has high conductivity (gt; 1200 S / cm), good stability and excellent mechanical properties, and is suitable for a flexible electronic device and stable work in a certain humidity environment.

The invention provides a preparation method and application of a quantum dot light-emitting diode based on interface modification, and belongs to the technical field of quantum dot materials. The preparation method comprises the following steps: (1) spin-coating PEDOT: PSS-4083 on ITO (Indium Tin Oxide) to obtain a hole injection layer; (2) spin-coating polyvinyl carbazole on the hole injection layer in the step (1) to obtain a hole transport layer; (3) spin-coating pyridine on the hole transport layer in the step (2) to obtain a modification layer; (4) spin-coating ZnCdS / ZnS quantum dot normal octane on the modification layer in the step (3) to obtain a quantum dot film; and (5) spin-coating an Mg-doped ZnO ethanol solution on the quantum dot film in the step (4), and performing high-vacuum evaporation to obtain the quantum dot light-emitting diode. Compared with an original device, the EQE of the prepared quantum dot light emitting diode is improved by 16.5%, and the highest brightness is improved by 12.5%.

The invention provides an implantable flexible pH sensor capable of continuous monitoring and a preparation method thereof, the implantable flexible pH sensor comprises a flexible substrate support, and a pH sensitive electrode and a pH reference electrode are arranged on the flexible substrate support. The pH sensitive electrode adopts polyaniline as a sensitive material and is synthesized through an electrochemical deposition method, so that the sensitivity to pH change is improved. The PEDOT: PSS polymer conductive material is used for modifying the electrode, so that the conductivity and the stability are enhanced. Furthermore, the silver / silver chloride modified reference electrode provides stable reference potential, and the measurement precision is ensured. The sensor can be manufactured by adopting a photoetching technology, high precision and high reliability are realized, the sensor is particularly suitable for continuous monitoring of the pH value in tumor cells, the problem of signal drift in long-term monitoring of a traditional sensor in the cells is solved, and the efficiency of tumor metabolism research and drug screening is improved.

The present invention discloses a VN 0.52 O 0.26 The method of combining nanoparticles with PEDOT:PSS thermoelectric nanocomposite film is used to prepare VN by pyrolysis of urea to generate ammonia and react with NaVO3 at high temperature. 0.52 O 0.26 Nanoparticles, constructing P-type PEDOT:PSS and N-type VN 0.52 O 0.26 The pn junction barrier of the nanoparticle organic-inorganic composite and the energy filtering effect between the nanoparticles and the organic PEDOT interface are used to improve the conductivity, Seebeck coefficient and power factor of the thermoelectric composite film. The organic-inorganic thermoelectric nanocomposite film prepared has a Seebeck coefficient of 62.75μV / K and a power factor of 474.424μWm at 90°C. ‑1 K ‑2 .

The invention discloses stimuli-responsive ionic conductive hydrogel as well as a preparation method and application thereof. The preparation method comprises the steps that a hydrogel precursor solution containing a cross-linking agent, a phase change regulating agent, a photoinitiator, water and PEDOT: PSS is provided, the cross-linking agent comprises laponite, and the phase change regulating agent at least comprises N-isopropylacrylamide; irradiating the hydrogel precursor solution with ultraviolet light, and curing to obtain blocky conductive hydrogel; and fully contacting the blocky conductive hydrogel with a zinc salt solution containing zinc ions to prepare the stimulus-responsive ion conductive hydrogel. The stimulus-responsive ionic conductive hydrogel prepared by the invention can realize good mechanical properties, adhesion performance and conductivity, has sensing performance to strain and temperature, can be prepared into a strain / temperature sensor, and realizes high sensitivity and fast response speed; in addition, a synaptic device can be prepared.

The invention relates to a method for coating a prussian blue analogue with PEDOT (poly (3, 4-ethylenedioxythiophene)) and application, and belongs to the field of sodium ion batteries. The method comprises the following steps: adding a Prussian blue analogue and a commercial PEDOT: PSS dispersion liquid into a dispersion system, and uniformly stirring; and slowly adding the precipitation solution into the dispersion system, so that the PEDOT is separated out on the surface of the Prussian blue analogue. A high-molecular polymer in a commercial PEDOT: PSS dispersion liquid is slowly precipitated on the surface of the Prussian blue analogue through a precipitation solution, so that PEDOT is uniformly distributed on the surface of the Prussian blue analogue to form a coating layer, conductive polymer PEDOT can be firmly attached to the surface of the Prussian blue analogue, and the conductivity is improved, so that the electrochemical performance is improved. The process is simple and convenient to operate, is very suitable for being used as a coating process of the Prussian blue analogue, and solves the problem that the Prussian blue analogue is difficult to coat.

The invention discloses a preparation method and application of a flexible stretchable electrode with double conductive networks, and relates to the technical field of flexible electronics, electrochemistry and material scientificity, the electrode comprises a conductive nano material and a high-molecular polymer material, the high-molecular polymer elastic material is thermoplastic polyurethane (TPU), and the conductive filler is a carbon nano tube (CNT) and poly (3, 4-difluorophenyl)-1, 3, 4-trimethyl-1, 3-pentanediol monoisobutyrate. The flexible stretchable electrode is in the shape of a thin film, and the flexible stretchable electrode is in the shape of a thin film and is made of polystyrolsulfon acid (PEDOT: PSS); according to the invention, when the mass ratio of the thermoplastic polyurethane (TPU) solution is 0.4: 2.6: 1.0, the film-shaped double-conductive-network flexible stretchable electrode obtains high stretchability (1100%); the double-conductive-network flexible stretchable electrode film can be deformed at will in a state and also has excellent conductivity in a stretching deformation state; the composite material has the characteristics of high stretchability, high conductivity, strain insensitivity, good electrochemical performance, excellent biocompatibility and the like, and human joint movement can be monitored in real time under large deformation of human movement; the preparation method is simple, easy to operate and low in cost.

The invention belongs to the field of conductive polymer materials, and particularly relates to a preparation method for regulating PEDOT: PSS dispersion liquid by utilizing reaction of different emulsifiers. The invention firstly provides a composition for synthesizing a PEDOT: PSS dispersion liquid. The composition comprises an EDOT monomer, poly (4-styrenesulfonic acid) and an amphiphilic emulsifier; the amphiphilic emulsifier comprises one or more materials selected from the group consisting of an anionic emulsifier, a cationic emulsifier, a zwitterionic emulsifier, and a nonionic emulsifier. The PEDOT: PSS material prepared by the method disclosed by the invention is high in conductivity and can be widely applied to various fields such as transparent electrodes, antistatic coatings and energy storage devices.

The invention discloses a sweat glucose detection bandage and a preparation method thereof, a hydrophobic layer OTS film and a UVO or plasma surface treatment technology are introduced to enhance the comparison between a hydrophobic region and a hydrophilic region, and an accurate patterned wettability surface can be simply and conveniently obtained, so that PEDOT: PSS is accurately deposited in a channel region and a grid region. In addition, due to the fact that the OTS treatment is conducted on the two faces of the bandage, after the UVO treatment is conducted on the single face of the bandage, the hydrophilic and hydrophobic difference is formed on the two faces of the bandage. Due to the structure, retention and diffusion of liquid on the surface are reduced, one-way flow of the detected liquid is effectively guided, and accuracy and stability of sweat glucose detection are ensured.

The present invention discloses a memristor based on a GaN / PEDOT:PSS planar heterojunction and a preparation method thereof, including a substrate; a GaN thin film, the GaN thin film is p-type conductive, and the GaN thin film is attached to the surface of the substrate; a PEDOT:PSS organic layer, the PEDOT:PSS organic layer is p-type conductive, and the PEDOT:PSS organic layer is attached to the surface of the GaN thin film; a first electrode, forming an ohmic contact with the GaN thin film; and a second electrode, forming an ohmic contact with the PEDOT:PSS organic layer. Through the combined action of the space charge layer generated by the GaN / PEDOT:PSS heterojunction and the nitrogen vacancies in the GaN thin film, the present invention can realize the switching of the device resistance between the high resistance state and the low resistance state under the control of an external voltage, and realize the non-volatile writing and erasing of data.

The invention belongs to the field of biomedical materials, and discloses a hydrogel patch with piezoelectricity, conductivity and high adhesion and a preparation method and application of the hydrogel patch. Polyvinyl alcohol (PVA) and acrylic acid (AA) serve as polymer frameworks of the hydrogel patch; the invention relates to a nano-zinc oxide / poly (3, 4-ethylenedioxythiophene) / poly (styrenesulfonic acid) (PEDOT: PSS) composite conductive adhesive, which comprises nano-zinc oxide (ZnO) as a piezoelectric material, poly (3, 4-ethylenedioxythiophene)-poly (styrenesulfonic acid) (PEDOT: PSS) as a conductive material, and N-hydroxysuccinimide acrylate (NHS-AA) as an adhesive functional monomer. According to the invention, active ester groups in the N-hydroxysuccinimide acrylate are utilized, so that the patch can quickly form covalent amido bonds with amino groups on the surface of a tissue in a dry state, firm adhesion is realized, local nerve repair can be effectively promoted through a piezoelectric effect, a novel ideal material is provided for disease treatment, and the patch has wide application prospects. Wide clinical application prospects are realized in the field of biological medicines.

The invention relates to preparation and application of a wearable hydrogel sensor for strain and temperature dual-mode monitoring, and the preparation method comprises the following steps: 1, mixing acrylamide, N, N-methylene bisacrylamide, PEDOT: PSS, beta-cyclodextrin and gallic acid; step 2, after mixing, putting the mixture into a mixed solution of glycerol and deionized water, and uniformly stirring at normal temperature to obtain a conductive hydrogel precursor solution; 3, adding ammonium persulfate into the hydrogel precursor solution, and uniformly mixing to obtain a hydrogel precursor solution; step 4, cutting an I-shaped mold and an S-shaped mold, pouring the precursor solution in the step 3 into the mold, and obtaining conductive hydrogel under a heating condition; 5, conductive adhesive tapes or wires are arranged on the left side and the right side of the conductive hydrogel and directly extend to serve as lead wires connected with external equipment, waterproof breathable adhesive tapes are used for packaging, the I-shaped hydrogel serves as a strain sensor, the S-shaped hydrogel serves as a temperature sensor, and an IS wearable sensor is formed. According to the invention, the two modes do not interfere with each other.

The invention relates to the technical field of memristors, and provides a chitosan-based memristor which comprises a substrate, a buffer layer, a composite dielectric layer and a top electrode which are sequentially stacked from bottom to top, the buffer layer is formed by spin-coating a PEDOT: PSS aqueous solution on the substrate and then carrying out heat treatment; the composite dielectric layer is formed by spin-coating the buffer layer with an ultrasonic composite solution formed by a graphene oxide aqueous dispersion and a chitosan acetic acid solution and then carrying out heat treatment. By adopting a collaborative architecture of the chitosan-graphene oxide composite dielectric layer and the PEDOT: PSS buffer layer, the prepared bio-based memristor has the effects of relatively high switching ratio, relatively low operating voltage and good performance stability. Meanwhile, based on stable high and low resistance states of the device, all seven basic logic operations including a NOT gate, an AND gate, an OR gate, a NAND gate, a NOR gate, an XOR gate and an XNOR gate are completely realized on a single bio-based platform, the function accuracy can reach 100%, and an unexpected effect is achieved.

The invention relates to the technical field of electronic materials, and discloses a nano-structure-based flexible electronic material preparation method, which comprises: 1, dissolving 80-85% of a hydrogenated styrene-butadiene block copolymer (SEBS) in a tetrahydrofuran (THF) and N-methyl pyrrolidone (NMP) mixed solvent to form a matrix solution; 2, 12%-15% of functionalized graphene (EGO-PP) with the surface grafted with PEDOT: PSS is added into the matrix solution, and ultrasonic-shearing synergistic dispersion treatment is carried out; and step 3, performing programmed cooling control on the dispersion system, and cooling from 80 DEG C to 25 DEG C in stages to complete nano-network self-assembly. Matching ([delta] [delta] t; compared with the prior art that a blending method depends on high filler loading, the method provided by the invention has the advantages that a three-dimensional interpenetrating conductive network is formed by the functionalized graphene under the ultralow content of 1.8 vol% by using an ultra-low (0.5, 0.5) and Spinodal decomposition mechanism, and compared with a blending method which depends on high filler loading, the core contradiction of material embrittlement caused by high filler concentration is solved, and the flexibility is improved by 240% or above under the same conductivity.

The invention provides an electrochemical sensor and a biological index monitoring device. The electrochemical sensor comprises a flexible substrate and a working electrode arranged on at least one side of the flexible substrate; the working electrode comprises a conductive layer; the conductive layer comprises a conductive polymer PEDOT: PSS and a plasticizer; wherein the conductive polymer PEDOT: PSS is distributed in the conductive layer in the form of linear fibers. The conductive polymer PEDOT: PSS is modified by adopting the plasticizer, so that the electrochemical activity and the conductivity of the conductive polymer PEDOT: PSS can be effectively improved, the conductive polymer PEDOT: PSS can meet the application requirement of an electrochemical sensor, and the limitation that the traditional CGMS is only based on a carbon material and a noble metal material is broken through. And meanwhile, the working electrode adopting the conductive polymer PEDOT: PSS has good flexibility, still has good conductivity and electrochemical activity after being circularly bent for multiple times, and has remarkable advantages compared with a carbon-based electrode.

The invention discloses a biological gel electrode based on polyvinyl alcohol and gelatin double-network crosslinking as well as a preparation method and application of the biological gel electrode, and belongs to the technical field of conductive hydrogel. According to the method, polyvinyl alcohol, gelatin, liquid metal, poly (3, 4-ethylenedioxythiophene)-polystyrolsulfon acid (PEDOT: PSS) and the like are used as main raw materials. Wherein the liquid metal gallium indium alloy is a conductive filler, sodium tetraborate is used as a cross-linking agent, and the biological double-network structure gel electrode with excellent conductivity, relatively low skin impedance and relatively good self-healing is obtained. As a biological electrode patch, the hydrogel prepared by the invention can be used for long-time and high-fidelity electrophysiological electrical signal acquisition, such as electrocardiosignals, electromyographic signals, electroencephalogram signals and the like. In addition, the biogel electrode provided by the invention is simple in preparation process, low in cost and good in biocompatibility, and has huge potential in the aspects of large-scale production, popularization and application of electrode patches.

The invention belongs to the technical field of hydrophobic materials, and particularly relates to transparent hydrophobic paper and a preparation method and application thereof.The preparation method comprises the steps that a reaction reagent n-decanoic acid is mixed with a catalyst, a condensing agent and an organic solvent to obtain a reaction solution, the catalyst is 4-dimethylaminopyridine, and the condensing agent is 4-dimethylaminopyridine; the condensing agent is 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride, and the solvent is a solvent; the transparent paper-based material is placed in a reaction solution to be subjected to esterification reaction, and the transparency of the transparent paper-based material is hardly influenced; the esterification reaction introduces a hydrophobic alkyl chain on the surface of the paper-based material, so that the hydrophobicity of the paper-based material is improved, the transparency of the paper-based material can be retained, and the film-forming property of PEDOT: PSS on a paper base is not influenced.

The invention discloses a silver nanowire and polymer composite transparent conductive film and a preparation method thereof, and belongs to the field of conductive films. According to the preparation method disclosed by the invention, hydroxylation treatment is performed on the surface of AgNWs through ultraviolet irradiation induction to generate a large number of-OH groups, and the-OH groups and sulfonic acid groups (-SO3H) in PEDOT: PSS form chemical bonding, so that the contact resistance between the AgNWs and the PEDOT: PSS is remarkably reduced, and a continuous and efficient conductive network is constructed. Meanwhile, the tight coating structure of hydroxylated AgNWs and PEDOT: PSS effectively inhibits oxidation and ion migration of the silver nanowires in a humid and hot environment, and the stability of the transparent conductive film is remarkably improved.

The invention discloses a functional fabric capable of synchronously achieving electric heating and infrared stealth and a preparation method and application thereof.The fabric is of a sandwich structure, the outer layer is an infrared stealth layer, cellulose is used for modifying the fabric, the porosity is reduced, the capillary action is improved, a low-emissivity material and the fabric are tightly combined, the surface is smooth, the problem that inorganic materials fall off is solved, and the fabric has the function of infrared stealth. The infrared stealth effect is enhanced; the interlayer is a heat insulation layer, the aerogel is subjected to silanization modification, rigid chain segments are introduced to form a rigid-flexible physical cross-linked network, the hydrogen bond strength and mechanical performance are improved, heat loss of the inner layer is slowed down, collaborative stealth is achieved, and infrared stealth of the thin aerogel under heating is achieved; the inner layer is an electric heating layer, PEDOT: PSS and CF are compounded, and the pi-pi conjugation action of the PEDOT: PSS and the CF changes the arrangement of macromolecular chains, reduces the contact resistance of the CF, improves the conductivity of the PEDOT: PSS and enhances the electric heating performance.

The invention discloses a transparent electrode composition, a transparent electrode and a preparation method and application of the transparent electrode. The transparent electrode composition provided by the invention comprises a PEDOT: PSS dispersion liquid, dimethyl sulfoxide, a water-based silane coupling agent and a surfactant. The transparent electrode prepared from the transparent electrode composition has excellent stability, adhesive force and light transmittance and low square resistance. The transparent conductive layer can be used for replacing an existing ITO thin film to serve as the transparent conductive layer of the electrowetting display device. After voltage is applied for a long time, the transparent electrode is not subjected to electrochemical damage, and the service life of the electrowetting display device is greatly prolonged.

The invention discloses an electromagnetic shielding aerogel framework with a concentration gradient and porosity gradient structure as well as a preparation method and application of the electromagnetic shielding aerogel framework. The aerogel framework has a multi-stage concentration gradient and porosity gradient structure in the thickness direction, and each stage of gradient structure of the aerogel framework is composed of cellulose nanofibers (CNFs), MXene and poly (3, 4-ethylenedioxythiophene)-polystyrolsulfon acid (PEDOT: PSS) in different proportions. The aerogel framework not only has ultrahigh kilomegahertz total electromagnetic shielding efficiency, but also can keep excellent low-reflection characteristic. The preparation method of the aerogel framework adopts a 3D printing technology, so that the preparation method has application flexibility, adaptability and customizability to meet large-scale preparation and industrialization.

The invention belongs to the field of conductive films, and discloses a high-oxidation-resistance silver nanowire transparent composite conductive film and a preparation method thereof.According to the transparent composite conductive film, the two sides of a conductive film containing silver nanowires are each sequentially provided with an anti-ultraviolet layer and a hydrophobic protection layer; the conductive thin film containing the silver nanowires is an AgNWs / PEDOT: PSS conductive thin film obtained by performing film forming on a mixed solution of the silver nanowires AgNWs and modified PEDOT: PSS; the anti-ultraviolet layer is a nano ZnO / PI layer obtained by film forming of a mixed solution of nano ZnO and polyimide PI; and the hydrophobic protective layer is an OTS layer formed by soaking the conductive thin film on which the anti-ultraviolet layer is formed in octadecyl trichlorosilane OTS. According to the transparent composite conductive film, the oxidation resistance is remarkably improved while high light transmittance is kept, good mechanical flexibility and conductivity are shown, and the transparent composite conductive film has wide application prospects in the fields of electronic devices and transparent electrodes.

A high-stability solid aluminum electrolytic capacitor comprises a shell, a core package and a rubber plug, the core package is arranged in the shell in a sealed mode through the rubber plug, a conductive high-molecular polymer film is formed in the core package, and the conductive high-molecular polymer film comprises a first conductive high-molecular polymer layer and a second conductive high-molecular polymer layer; the first conductive high-molecular polymer layer comprises PEDOT: PSS doped with sulfonated polyetheretherketone, and the second conductive high-molecular polymer layer comprises PEDOT: PSS. According to the invention, the adhesion between the PEDOT: PSS and the anode foil can be improved by introducing the polyether-ether-ketone, so that the cycle stability of the solid aluminum electrolytic capacitor is improved.

The invention discloses a modified MXene conductive polymer bacterial cellulose composite fiber electrode and a preparation method and application thereof, and belongs to the field of composite conductive super-strong fiber preparation. The preparation method comprises the following steps: mixing K-MXene and a conductive polymer to obtain composite conductive ink; then, the strip-shaped BC hydrogel is crosslinked with composite conductive ink through a hydrogen bond, and K-MXene / PEDOT: PSS-coated BC conductive hydrogel is obtained; secondly, the conductive hydrogel is subjected to a wet state-drafting technology and a wet state-twisting technology, and K-MXene / PEDOT: PSS-BC conductive composite large fibers are obtained; finally, the p-K-MXene / PEDOT: PSS (at) BC composite conductive large fiber electrode is obtained through dip coating of PDMS dispersion liquid and solvent replacement, and the p-K-MXene / PEDOT: PSS (at) BC composite conductive large fiber electrode is obtained. The prepared fiber electrode and commercial yarn can be woven into an intelligent fabric which is used for a self-powered sensor and reliable detection of human body signals.

The invention is related to a microneedle array comprising a substrate and a plurality of hydrogel-forming microneedles arranged in the form of one or more arrays. The invention is also related to a method for producing such a microneedle array. The hydrogel-forming microneedles may be coated with a conductive polymer layer of PEDOT:PSS. The resulting microneedles may have an electrical conductivity of 100 S / m or more. Laser-based photothermal techniques such as laser-scribed phase separation (LSPS) may be used for enhancing the electrical conductivity and in vivo water stability of the PEDOT:PSS coating layer.

This invention discloses an electrochemical sensor for neutralizing antibodies applicable to whole blood and its usage method, comprising a foldable drainage region, a reaction region, and an adsorption region. The working electrode of the reaction region is coated with PEDOT:PSS conductive hydrogel material, which is then modified with PEG to immobilize specific biorecognition molecules. This invention's detection device can quickly and efficiently quantify neutralizing antibody concentrations, can be used for whole blood testing, can detect extremely low concentrations, and exhibits high sensitivity and good detection performance.