82 results about "Electrode interface" patented technology

The invention relates to the field of electrochemical engineering, and discloses a seawater electrolysis chlorine production electrode life prediction method and equipment, and the method comprises the steps: collecting electrode interface electrochemical characteristics, operation environment parameters and material microstructure degradation data synchronously through a multi-channel electrochemical sensing array, an online water quality monitoring module and a microstructure evolution monitoring unit; and constructing a high-dimensional feature vector space, inputting a multi-scale dynamic coupling neural network model, and combining a physical constraint loss function and an online self-updating mechanism to realize high-precision prediction of residual life and performance inflection points. The system comprises a sensing array, a water quality monitoring module, a microstructure scanning unit, a central data processing platform, a neural network operation cluster and a human-computer interaction interface. According to the method, through cross-scale data fusion and physical interpretable modeling, the prediction error is controlled within 5%, inflection point early warning is advanced by more than 200 hours, a maintenance strategy and a parameter optimization suggestion are output, the service life of the electrode is remarkably prolonged, and the operation reliability of the system is remarkably improved.

The novel flexible electrodes disclosed herein utilize the low bending stiffness of electrospun nanofiber mats to achieve the material properties required for surgical implantation and sustained bidirectional communication with peripheral nerves without compromising electronic functionality. According to certain embodiments disclosed herein, implantable neural electrode probes are provided which comprise a polymeric substrate having proximal and distal ends, an electrode interface at the proximal end of the substrate; at least one neural contact at the distal end of the substrate; and electrically conductive traces formed on the fibrous substrate providing electrical communication between the at least one neural contact and the electrode interface, wherein the substrate comprises a nonwoven mass of polymeric nanofibers.

The invention discloses a microneedle array electrochemical sensor for monitoring a sepsis marker C-reactive protein in skin interstitial fluid. According to the novel-arrangement cactus-like structure microneedle array electrode, the enrichment efficiency of detection liquid is remarkably improved through the design that the structure sequentially extends from the center to the periphery, and good attachment to skin tissue is achieved in combination with a flexible substrate material. Electrode interface construction of the electrochemical sensor is based on electrochemical deposition, a C-reactive protein aptamer is taken as a recognition object, a highly uniform nucleic acid C-reactive protein aptamer probe single layer is formed by combining a freezing-unfreezing method self-assembly technology, and the nucleic acid C-reactive protein aptamer probe single layer has a good linear relationship with a detection electric signal in a C-reactive protein concentration range of 0.5-100 ng / mL; the kit has the properties of high sensitivity, high specificity, rapid response, real-time monitoring, minimally invasive property and the like, is beneficial to rapid detection of C-reactive protein and dynamic monitoring of sepsis course change, and also provides technical support for development of biosensors for biomarker detection in complex media.

According to the invention, a stable Zn negative electrode is realized by forming an in-situ constructed zinc-loving and hydrophobic interface through simple soaking, and a unique carbonyl functional interface layer is formed in situ by soaking zinc foil in a glyoxal solution. On the basis of strong electronegativity of carbonyl, obvious interaction can be generated on zinc ions. And moreover, the hydrophobicity of the Zn negative electrode is improved by the unique particle morphology formed in situ. Through reconstruction of a negative electrode interface by glyoxal, a contact angle result shows that the unique morphology of glyoxal formed on the surface of the Zn negative electrode can increase the hydrophobicity of the Zn negative electrode. Therefore, a compact granular unique morphology is formed in situ on the surface of the Zn negative electrode through simple soaking, so that the Zn negative electrode becomes hydrophobic, and side reactions such as hydrogen evolution and by-products at an electrolyte / electrode interface are slowed down. As a result, symmetric cells exhibit more than 3200 hours at 1 mA cm <-2 > and 1 mAh cm <-2 >. Various types of positive electrodes can be matched, and excellent cycling stability is realized; for example, when matched with a MnVO positive electrode, it can be stably cycled for 2000 times.

Provided are an electrolyte additive, an electrolyte, and an electrochemical device. The electrolyte additive comprises a compound represented by formula 1 and a compound represented by formula 2, wherein the compound represented by formula 2 is selected from at least one of a compound represented by formula 2-A and a compound represented by formula 2-B. By means of the above configuration, the compound represented by formula 1 and the compound represented by formula 2 are used in combination as the electrolyte additive, which is beneficial to forming a stable solid electrolyte interface film at a negative electrode interface and beneficial to forming a stable positive electrode electrolyte interface film at a positive electrode interface, thereby improving the stability of the positive electrode interface and the negative electrode interface, reducing side reactions between an electrolyte and electrode active materials, effectively inhibiting further decomposition of the electrolyte, reducing gas production, reducing the internal resistance growth rate of the electrochemical device, and improving the high-temperature cycle performance and the high-temperature storage performance of the electrochemical device.

The invention discloses an extensible three-dimensional electrical impedance imaging electrode array device, and belongs to the technical field of biomedical measurement. The device comprises a two-dimensional electrode interface module which is connected with original two-dimensional equipment through a series input and expansion interface; the three-dimensional common electrode array comprises a plurality of groups of electrodes at different horizontal layers; the input end of the three-dimensional electrode control module is connected to the two-dimensional electrode interface module, and the output end of the three-dimensional electrode control module is connected to the three-dimensional common electrode array. The control module comprises an electrode array control connector which is connected in parallel and an isolation type analog switch unit of a multi-stage series analog switch structure. By sending a control signal to the control connector, all electrode channels on a certain layer in the three-dimensional electrode array are uniformly gated, and original two-dimensional measurement is mapped to a three-dimensional space. According to the invention, three-dimensional measurement can be realized without changing the original equipment, the number of vertical layers expanded by serial connection of interfaces is supported, the number of horizontal electrodes expanded by parallel connection is controlled, and high compatibility, high expansibility and excellent signal isolation capability are realized.

The utility model discloses a plasma operation electrode cutting in-vitro tissue temperature test platform, which comprises a plasma host, a plasma operation electrode, a temperature measurement console, a temperature recorder, a time synchronization controller and a computer, and is characterized in that the plasma operation electrode is connected with an operation electrode interface of the plasma host through a lead; according to the test platform, the plasma operation electrode can be conveniently clamped and fixed by arranging the adjusting sliding block, the annular clamping frame and the anti-skid layer, and the spatial position of the plasma operation electrode clamped and fixed by the electrode clamping mechanism can be conveniently and accurately adjusted in the x direction, the y direction and the z direction by arranging the supporting column, the connecting sleeve, the connecting block, the positioning bolt and the connecting rod; the depth of the plasma operation electrode tool bit fixed on the electrode clamping mechanism inserted into the in-vitro tissue and the distance between the plasma operation electrode tool bit and the temperature measuring probe can be conveniently controlled, so that temperature data of different depths in the in-vitro tissue can be conveniently measured, and the temperature of the in-vitro tissue can be conveniently and accurately measured.

The invention relates to the technical field of solid oxide electrolytic cell hydrogen production, and particularly discloses a control system and method of SOEC equipment for producing hydrogen by electrolyzing water. The system comprises a multi-frequency impedance acquisition unit and a dynamic interval matching and cooperation controller. The method is characterized by comprising the following steps of: synchronously acquiring alternating-current impedance parameters of different frequency bands for representing an electrolyte body phase state and an electrode interface state; dynamically determining an optimized operation interval in a multi-dimensional impedance state space according to the real-time direct-current working state of the electric pile; a cooperative control instruction is generated by comparing the relative positions of the impedance parameter and the dynamic interval, and meanwhile, a direct-current power supply, a heating device and a gas supply device are adjusted according to differential weights to drive the state of the galvanic pile to enter and be kept in the target interval. According to the method, the internal comprehensive state of the electric pile is directly reflected by using the impedance parameter, global and rapid adaptive cooperative control is realized, and the operation efficiency, stability and durability of the SOEC system can be improved.

This utility model discloses a transcranial electrical stimulation (TCS) device for children's language training, comprising a housing and a control component disposed within the housing. A stimulation electrode interface is disposed on the right side of the housing, fixedly connected to the housing and electrically connected to the control component. A mode selection button, electrically connected to the control component, is provided on the housing to switch between different TCS modes. The TCS device for children's language training provided in this application allows switching between different TCS modes via the mode selection button, enabling selection of different TCS modes to meet the safety and precise control requirements of children's language training.

The utility model discloses an electrode connecting structure of a neuromuscular stimulator, which relates to the technical field of medical instruments, and is characterized by comprising an external shell, conductive hydrogel for packaging and an electrode pulse mechanism positioned between the conductive hydrogel and the shell, the electrode pulse mechanism comprises a PCBA (Printed Circuit Board Assembly) board, a positive electrode and a negative electrode, a control module is integrated on the PCBA board, connecting pieces are arranged between the PCBA board and the positive and negative electrodes, the PCBA board is detachably connected with the positive and negative electrodes through the connecting pieces, and positive and negative electrode interfaces are arranged on the PCBA board close to the positive and negative electrode ends; according to the utility model, the connection mode of the electrode and the circuit board is optimized, the reliability of long-term use is ensured, and the conductivity of the electrode can be improved.

The utility model discloses a flame-proof type reaction kettle on-line pH analyzer, which relates to the technical field of pH detection, and comprises an explosion-proof cabinet, a measuring storage tank and a diaphragm pump are fixedly connected in the explosion-proof cabinet, one side of the measuring storage tank is provided with an electrode interface penetrating to the outer side of the explosion-proof cabinet, the electrode interface is fixedly connected with a pH electrode, and the other side of the measuring storage tank is provided with a pressure sensor. A liquid inlet of the measuring storage tank is connected with a liquid outlet of the diaphragm pump; a liquid inlet of the diaphragm pump is connected with a liquid inlet pipe, a soaking liquid pipe and a flushing liquid pipe, a liquid outlet of the measuring storage tank is connected with a backflow pipe and a liquid discharging pipe, the backflow pipe is connected with a closed sampling valve in series, and the closed sampling valve is arranged on the outer side of the anti-explosion cabinet. And liquid valves are arranged on the liquid inlet pipe, the soaking liquid pipe, the flushing liquid pipe, the return pipe and the liquid discharge pipe. According to the on-line pH value analyzer for the flame-proof reaction kettle, the layout cost is low; the pH electrode is convenient to disassemble, and the explosion-proof effect is good; and automatic detection can be realized.

The utility model relates to an environment-friendly portable water quality detector in the field of water quality detection, which comprises a shell, an electrode interface, a display screen, a main control board, a battery and a control key, the upper end of the shell is provided with two electrode interfaces, one electrode interface is a composite electrode interface, the other electrode interface is a single electrode interface, the composite electrode interface is connected with a composite electrode, and the single electrode interface is connected with a single electrode; detection of a plurality of sensors is carried out through the two electrode interfaces; the composite electrode interface is provided with a multifunctional adapter, so that setting of various sensors is completed, the functions of automatic identification of various types of sensors, reading and storage of measured data, sensor calibration and the like can be set through the multifunctional adapter, and detection of various test indexes is completed.

The application discloses a self-driven disc type blood separation and detection device and method, which comprises a sample adding layer, a separation layer and a detection layer, and the layers are sequentially connected through screw fixation. The sample adding layer is provided with a sample adding port and a first screw hole; the separation layer comprises four repeated blood separation units and a second screw hole, and each separation unit comprises a sample inlet, a micro-fluidic channel, a filter groove, a sample outlet and a waste liquid collecting chamber; and the detection layer is provided with a screen-printed electrode interface and a third screw hole. Blood samples are dripped into the device from the sample adding port, and under the driving of the internal negative pressure of the device, the blood samples enter the micro-fluidic channel, and blood filtration is realized by using the gravity difference between blood cells and blood plasma. The filtered blood plasma flows into the detection layer and contacts with the screen-printed electrode detection unit, so that electrochemical detection is realized. The device does not need external power supply, thereby reducing sample operation, reducing the volume of the separation device, improving the blood separation efficiency, and facilitating instant detection and multi-channel detection of blood samples.

The present invention discloses an electrochemical biosensor for detecting C-reactive protein in plasma and whole blood. The electrode interface of the electrochemical biosensor is constructed based on electrochemical polymerization and electrochemical deposition. It is simple and rapid to prepare, requires minimal reagents, has low human toxicity, and is environmentally friendly and pollution-free. The sensor exhibits a good linear relationship with the electrical signal detected by the sensor within a C-reactive protein concentration range of 0.1 to 25 μg / mL, with a detection limit of 0.096 μg / mL. The sensor exhibits high sensitivity, simple operation, high selectivity, environmental friendliness, and high biosafety. It facilitates the rapid diagnosis of sepsis and the immediate monitoring of disease progression. It also provides technical support for the development of biosensors for biomarker detection in complex media.

The invention provides the double-electric-layer capacitor electrolyte with high energy density and cost advantages, the additive of the electrolyte contains small cations to increase the degree of freedom of salt ions and reduce the viscosity, and the anion part contains hydrophobic groups and oxyphilic groups of oxyphilic functional groups on the surface of activated carbon to reduce the contact between water molecules and an electrode interface, so that the service life of the double-electric-layer capacitor is prolonged, and the service life of the double-electric-layer capacitor is prolonged. And furthermore, the gas production rate of the electrolyte is reduced, the high-rate performance is adapted, the capacity exertion is increased, and the characteristic of low cost is compatible. The capacity retention rate of an EDLC battery cell containing the preferable additive is increased to 78.2% (19.3%) from 58.9% of a blank sample after 1000 circles of 125A large-current circulation (the current of a conventional application scene of the capacity battery cell is 25A), the capacitance retention rate is increased to 78.2% (19.3%) from 58.9% of the blank sample after 1500h of high-temperature floating charge at the voltage of 65DEG C and 2.9 V, and the internal resistance growth rate is increased to 78.2% (19.3%) from 58.9% of the blank sample. According to the present invention, the preferable additive can significantly improve the capacity, such that the injection amount of the cell electrolyte can be reduced so as to reduce the production cost on the premise of maintaining the capacity unchanged, the safety is high, the process change is small, the electrochemical performance is significantly improved, and the commercialization requirement can be well met.

The utility model belongs to the technical field of membrane electrode testing, and particularly relates to a membrane electrode partition testing device. According to the technical scheme, the membrane electrode partition testing device comprises a testing table base and an external power source, a lower porous sheet-shaped material is fixed to the testing table base, a membrane electrode to be tested is arranged on the lower porous sheet-shaped material, a three-axis moving device is installed on the testing table base, and the three-axis moving device is connected with the external power source. The Z-axis end of the three-axis moving device is sequentially connected with a pressure control sensor, an elastic insulating plate, an electrode structure and an upper porous sheet material in a superposed manner from top to bottom, and the electrode structure is connected with a raw material water filling nozzle; the test board base is provided with an electrode interface, and the electrode structure and the electrode interface are electrically connected with an external power supply. The utility model provides a partition testing device for a membrane electrode, which can accurately and fully evaluate the electrochemical performance and distribution characteristics of the membrane electrode under the condition that the membrane electrode is not cut and damaged.

This invention belongs to the field of electrochemical deoxygenation technology, specifically relating to an electrochemical oxygen atmosphere control system and method. The system, from bottom to top, includes a porous bottom cover, a first hydrophobic and breathable membrane, an oxygen-consuming cathode, a liquid-conducting diaphragm, an oxygen-evolving anode, a second hydrophobic and breathable membrane, and a porous top cover. Each component layer forms a zero-gap contact through the clamping force of the outer shell, enabling the device to achieve an ultra-thin thickness. The liquid-conducting diaphragm has a transverse liquid-conducting groove extending to the external electrolyte chamber, utilizing capillary action to achieve rapid electrolyte replenishment and eliminate local hot spots. Through the coupling design between the hydrophobic and breathable membrane and the electrode interface, oxygen generated by the oxygen-evolving anode directly penetrates and overflows in the form of gas molecules, effectively suppressing bubble formation and accumulation in traditional electrolysis processes, and significantly reducing the ohmic resistance of the interface and operating energy consumption. This invention features an extremely thin structure, high reaction efficiency, and no bubble interference, making it suitable for precise oxygen concentration control in spaces such as refrigerators and precision storage environments.

The application discloses a nerve electrode modified by an atomic dispersion metal catalytic material under super-temperature and a preparation method thereof, and the preparation method is as follows: roughening treatment is performed on the surface of a metal wire, cleaning, drying, and a nerve electrode base is obtained; polyimide solution is used to coat the other parts of the nerve electrode base except electrode recording sites; an electrochemical three-electrode system constant current mode is used to prepare the interface of the nerve electrode modified by the atomic dispersion metal catalytic material under super-temperature; the electrode can not only increase the effective contact area of the electrode interface and enhance the electron transport capacity, but also can play the high efficient biological catalytic activity of the atomic dispersion metal catalytic material, reduce the inflammatory reaction of the electrode-tissue interface, reduce the formation of scar tissue, greatly improve the biocompatibility of the nerve electrode, and improve the signal quality and detection sensitivity of long-term recording.

The application provides a multipurpose bioreactor, which comprises a reactor body, the reactor body comprises a tank body and a top cover detachably connected with the tank body, the tank body is provided with a plurality of interface holes penetrating the wall of the tank body, and the outer wall of the tank body is provided with an interface flange at the interface holes; the interface holes at least comprise a feeding interface hole, an air inlet interface hole, an electrode interface hole and a stirring interface hole; a disposable reaction bag can be arranged in the tank body and attached to the inner wall, the disposable reaction bag has a plurality of connecting interfaces; the connecting interfaces at least comprise a feeding interface, an air inlet interface, an electrode interface and a stirring interface; the feeding interface hole, the air inlet interface hole, the electrode interface hole and the stirring interface hole are arranged one by one corresponding to the feeding interface, the air inlet interface, the electrode interface and the stirring interface; and the top cover is detachably provided with a fixing clamp for fixing the disposable reaction bag. The application meets the requirements of various culture processes and reduces the cost.

This application relates to a neuromodulation device and an assembly for neuromodulation. The neuromodulation device includes a sealed housing assembly and electrodes. The sealed housing assembly includes an energy storage element, an output modulation element, and an electrode interface element. One end of the electrode is physically, electrically, and signalally connected to the sealed housing assembly via the electrode interface element. The other end of the electrode is arc-shaped and integrates one or more heating elements and a temperature sensing element; this other end is used for positioning near a target nerve. The neuromodulation assembly includes the neuromodulation device and an excitation device. The excitation device is used for energy emission and includes a control element, a waveform modulation element, and a emission element. The excitation device is operably connected to the neuromodulation device via the emission element in a wired or wireless manner.

The utility model relates to a three-electrode button cell. The three-electrode button cell comprises: a top cover, the end face of which is provided with a through hole; the electrode assembly comprises a negative plate, a first diaphragm and a positive plate which are stacked in sequence; the lithium plate is arranged between the top cover and the electrode assembly, and the lithium plate and the positive plate or the negative plate of the electrode assembly are arranged at intervals through a second diaphragm; the conductive piece is arranged between the lithium sheet and the top cover, is in ohmic contact with the lithium sheet and is insulated from the top cover; the sealing ring is arranged on the inner edge of the through hole of the top cover and abuts against the conductive piece penetrating through the through hole; and the shell is buckled with the top cover to form a closed cavity. The lithium sheet is arranged between the negative plate and the top cover of the button cell as the reference electrode, the electric potential of the reference electrode is exported in real time by the conductive piece, the electrochemical behavior of an electrode interface can be accurately analyzed in cooperation with potential signals of the positive electrode and the negative electrode, and the button cell is stable in structure, convenient to assemble, particularly good in sealing performance and high in reliability. And in-situ three-electrode testing can be carried out for many times.

The utility model discloses an intelligent plate adaptation system. The system comprises an upper computer and a bottom plate which are in communication connection with each other, the bottom plate is provided with a plurality of slots, each slot is provided with a plurality of function plates in a pluggable mode, and each function plate is provided with a code; an MCU, a slot interface, an identification circuit, a stimulation circuit and an electrode interface are arranged in the function board, the MCU is in communication connection with the slot interface, the slot interface is connected with the slot, the MCU is connected with the identification circuit, the MCU is connected with the electrode interface through the stimulation circuit, and the electrode interface is used for being connected with an electrode. According to the intelligent plate adaptation system, various function plates which can be flexibly plugged and unplugged are installed through the slots of the bottom plate, the adaptation problem between different function plates and table type electric ultrasonic treatment equipment is solved, the practicability of products is improved, the confidentiality of the products is improved, and the cost is reduced.

The invention provides an electrochemical microplate reader, which comprises: an acquisition module, which is used for acquiring an electric signal of a to-be-detected object; the interface module comprises an electrode interface unit and a communication interface unit, the electrode interface unit is used for forming a detection circuit of the acquisition module together with a detection electrode, and the communication interface unit is used for establishing control signal transmission and data transmission between the detection analysis module and the outside; the detection analysis module is used for performing quantitative analysis on the to-be-detected object according to the electric signal and optimizing a quantitative analysis result according to a machine learning algorithm; and the display module is used for displaying the result of the quantitative analysis.

The invention relates to an electrochemiluminescence sensor based on an intelligent controlled release-interface capture-self-enhancement mechanism and application of the electrochemiluminescence sensor in procalcitonin detection, and belongs to the technical field of electrochemiluminescence detection. Controllable release of signal molecules is achieved by packaging terpyridyl ruthenium through ZIF-8, meanwhile, a DNA layer rich in guanine is modified on an electrode interface, and the layer can serve as a nano trap to efficiently capture the signal molecules and can also serve as a co-reactant to achieve signal amplification. A DNA strand displacement reaction is utilized to regulate and control a target response release process, and detection is realized according to a quantitative relationship between the concentration of procalcitonin and an electrochemical luminescence signal. A labeling recovery method verifies that the recovery rate of the sensor in a human serum sample reaches 100.6-103.6%, good accuracy and precision are shown, and a reliable platform is provided for clinical detection of inflammatory markers.

The utility model provides an electrode interface of a muscle stimulator, which relates to the technical field of electrode interfaces and comprises an electrode interface body. The electrode interface body is provided with a butt joint anti-falling device in the left-right direction, the center of the butt joint anti-falling device is provided with an inner threaded cylinder in the left-right direction, four rightward L-shaped elastic pieces are arranged on the outer circumference of the inner threaded cylinder of the butt joint anti-falling device in an annular array mode, and triangular clamping blocks are arranged on the inner end faces of the right ends of the L-shaped elastic pieces of the butt joint anti-falling device. The right side of an internal thread cylinder of the butt joint anti-falling device is provided with a stimulator guide column in the left-right direction through threads, so that the butt joint anti-falling device is conveniently installed on a stimulator through the stimulator guide column, the stimulator guide column is conveniently connected with a stimulator circuit, and a wire protection cylinder is conveniently inserted into the butt joint anti-falling device to achieve butt joint anti-falling. The problems that the butt-joint state of the electrode interface cannot be effectively determined, so that the butt-joint stabilizing effect of the electrode interface is poor, and butt-joint measures are inconvenient to add on the electrode interface to determine the butt-joint state and maintain the butt-joint stability are solved.

The utility model discloses a multifunctional adapter. The adapter comprises a large adapter end and a small adapter end which are connected with each other, the tail end of the large adapter end is provided with a large adapter interface, a positive electrode interface, a negative electrode interface and a ground wire interface, and the tail end of the small adapter end is provided with a small adapter interface; wherein the large adapter end is provided with an adjusting button, two ends of the adjusting button are respectively provided with two on-off switches, and the large adapter interface and the small adapter interface are respectively connected with one of the on-off switches through a plurality of first electric wires. And the positive electrode interface, the negative electrode interface, the ground wire interface and the small adapter interface are respectively connected with another on-off switch through a plurality of second electric wires. Compared with the prior art, the multifunctional adapter not only can be used for switching over a multi-pin interface, but also can be used for switching over an interface using a positive electrode, a negative electrode and a ground wire, so that the multifunctional adapter is suitable for various types of medical equipment, has higher practicability, and reduces the use cost.

The application discloses a method and device for hydrogen production by electrolysis of water. The anode and cathode electrode materials are clamped in the anode clamp and cathode clamp respectively, and the electrolyte is injected to immerse the electrode clamp. After adjusting the distance between the two electrodes to the preset reference distance, the electrolysis voltage is applied to start the reaction. The high-frequency oscillation mechanism drives the two electrodes to do reciprocating oscillation with the reference distance as the center. The oscillation frequency matches the inherent characteristic frequency of the electrode surface flow boundary layer. The fast-shrinking slow-expanding asymmetric waveform is adopted, and the amplitude does not change the macroscopic working distance between the two electrodes. The transient electrochemical signals are synchronously collected to correct the oscillation frequency, and the hydrogen and oxygen gases generated in the reaction are collected. The application can strengthen the ion mass transfer of the electrode interface, realize the early directional separation of bubbles, effectively improve the electrolysis efficiency, and adapt to multiple types of electrolyte and variable load working conditions.

The novel flexible electrodes disclosed herein utilize the low bending stiffness of electrospun nanofiber mats to achieve the material properties required for surgical implantation and sustained bidirectional communication with peripheral nerves without compromising electronic functionality. According to certain embodiments disclosed herein, implantable neural electrode probes are provided which comprise a polymeric substrate having proximal and distal ends, an electrode interface at the proximal end of the substrate; at least one neural contact at the distal end of the substrate; and electrically conductive traces formed on the fibrous substrate providing electrical communication between the at least one neural contact and the electrode interface, wherein the substrate comprises a nonwoven mass of polymeric nanofibers.

The invention discloses a power conversion system and a control method thereof, and the system comprises an input positive electrode interface, an input negative electrode interface, an output positive electrode interface, an output negative electrode interface, a voltage reduction unit, an energy transmission unit, a near-end power conversion unit, and a far-end power conversion unit. An input capacitor is connected between the input positive electrode interface and the input negative electrode interface, and an output capacitor is connected between the output positive electrode interface and the output negative electrode interface; according to the invention, the step-down unit can be flexibly controlled, and a larger input / output transformation ratio is realized.

The application provides a full hydrogel nerve electrode which is composed of four layers of hydrogel, namely a PSFD hydrogel layer, an LPPDMEA layer, a PSFD hydrogel layer and an MHD layer; the application also provides a preparation method and application of the full hydrogel nerve electrode. The application provides a PEDOT:PSS hydrogel conductive path with ultrahigh conductivity, which achieves a record capacity compared with a metal electrode; the introduction of dopamine in each layer of the full hydrogel nerve electrode ensures excellent interface compliance, so that the full hydrogel nerve electrode can be attached to the complex geometry of soft neural tissue and avoid interface mismatch between the conductive layer, the packaging layer, the shielding layer and the tissue-electrode interface; the natural polymer packaging layer improves compatibility, and the electromagnetic shielding layer is used to improve the signal-to-noise ratio. The full hydrogel nerve electrode can provide artificial electrical stimulation to the cerebral cortex of a rat during a seizure, and the prepared full hydrogel nerve electrode has the potential to become a valuable tool for better understanding the development, function and treatment of brain diseases and neurodegenerative diseases and neurodegenerative diseases.