13 results about "Electron gain" patented technology

The invention relates to the technical field of microelectronic devices, in particular to a single-molecule memristor-rectifier device based on supramolecular assembly and a preparation method thereof. According to the preparation method, the guest molecule B is covalently connected with the tail end of the graphene electrode pair, so that stable and tight interface bonding between the supramolecular functional molecule and the electrode can be ensured; and then soaking the graphene electrode pair connected with the guest molecule B in a solution containing the host molecule A and the guest molecule C to form a supramolecular functional molecule between the graphene electrode pair. The guest molecule C in the supramolecular functional molecule has intrinsic oxidation-reduction activity, and the molecular structure of the guest molecule C can generate a reversible electron gain and loss process, so that controllable and reversible adjustment of charge distribution in the molecule is realized. Under the action of an electric field, through the reversible oxidation-reduction reaction of the guest molecule C, significant changes of intramolecular charge distribution and electron transmission characteristics are triggered, and finally reliable switching of high and low resistance states of the device is achieved.

The invention relates to a micro-channel plate, in particular to an electron beam focusing method of the micro-channel plate, the micro-channel plate and an image intensifier, and solves the technical problem that the spatial resolution of the image intensifier is reduced due to the fact that the existing micro-channel plate is easy to generate an electron beam spot expansion effect. According to the electron beam focusing method of the micro-channel plate provided by the invention, the insulating dielectric layer and the modulation electrode are arranged outside the output electrode of the existing micro-channel plate, and different working voltages are applied to the output electrode and the modulation electrode, so that an electric field with electron beam focusing capability is formed between the two electrodes; the electron beams emitted by each micro-channel are focused and shaped, so that the size of an electron beam spot is reduced, and the spatial resolution is improved. Meanwhile, the modulation electrode changes the electric field distribution condition at the output electrode, so that more multiplied electrons can be emitted, and the electron gain of the micro-channel plate can be improved.

The invention belongs to the technical field of electrochemistry and materials, and particularly relates to a device and a method for quantitatively detecting biochar electron transfer. The invention provides a device for quantitatively detecting biochar electron transfer. The device comprises an electrolytic reaction tank, a sulfuric acid electrolyte, a carbon-containing film working electrode, a counter electrode, a reference electrode and an electrochemical workstation, the carbon-film-containing working electrode comprises a working electrode and a carbon film loaded on the surface of the working electrode; the preparation raw material of the carbon film comprises biochar. According to the device for quantitatively detecting biochar electron transfer, sulfuric acid serves as electrolyte, the surface of the working electrode is coated with the carbon film containing biochar, and the obtained device is stable in system and has good anti-interference capacity; by constructing a hydrogen / oxygen evolution reaction kinetic model, a quantitative relationship between biochar electron transfer and reaction kinetic parameters is established, so that the problems that the existing biochar electron gaining and losing capability test mode and technical operation are complicated, and the detection sensitivity and the detection accuracy are low are solved.

The present application relates to the technical field of medical devices, in particular to an electronic non-affinity friction nanogenerator and a heart disease detector and a preparation method thereof. The generator comprises a first friction layer, a second friction layer, a first electrode and a second electrode; by adjusting the composition of the same material, the electron gain and loss ability of the material is changed, the first friction layer and the second friction layer are made of the same material, and the composition of the material used by the first friction layer and the second friction layer is different, so that the electron gain and loss ability of the first friction layer and the second friction layer is different, thereby realizing electronic non-affinity friction nanogeneration, using the high sensitivity to pressure to extract the characteristic signal points of the pulse wave, realizing the function of self-powered single-point detection of human heart rate, diastolic pressure and systolic pressure; in addition, it is sensitive and high, and can detect the subtle changes of the pulse wave, and since the pulse wave of a patient with heart disease is different from the normal pulse wave, it can be applied to the preparation of a heart disease detector.

The invention discloses a preparation method of a two-dimensional metal organic framework nanosheet and application of the two-dimensional metal organic framework nanosheet in photothermal-photodynamic combined therapy of tumors. The two-dimensional metal organic framework nanosheet is a metal-organic framework material composed of X metal ions and Y organic ligands, has a strong absorption peak from red light to near-infrared regions, can penetrate deeper tissues, overcomes the limitation of insufficient penetration due to ultraviolet / visible light absorption of a traditional photosensitizer, and can be applied to the field of photosensitizers. Meanwhile, the two-dimensional nanosheet structure can increase the specific surface area and improve the surface activity, metal ions can promote generation of reactive oxygen free radicals through electron gain and loss, the high photoexcitation reactive oxygen free radical generation capacity is achieved, and the phototherapy effect on tumors is enhanced. Tumor targeted molecular modification is further performed on the surface of the material, and the tumor phototherapy effect can be remarkably improved after drug loading.

The invention belongs to the technical field of mass spectrometry detection, and discloses a method and a kit for detecting redox activity metabolome by using matrix-assisted laser desorption ionization mass spectrometry. According to the method, 2, 4-dichloro-1-aminonaphthalene is taken as a matrix, and the redox activity metabolome is detected by using matrix-assisted laser desorption ionization mass spectrometry. According to the method, photoinduced electron transfer and redox potential difference are utilized, and electron gaining and losing, namely photoinduced electron soft ionization, are generated based on the redox potential difference, so that a sample loses or captures electrons, and corresponding cation free radicals, anion free radicals and fragment ions are generated; therefore, mass spectrometry and / or mass spectrometry imaging analysis of the redox activity metabolome can be realized.

The application provides a method for calculating a theoretical polarization curve of an inhibitor on a metal surface, obtaining a pure Fe (110) surface from an iron body phase, constructing a 4*3*1 Fe (110) surface and performing structural optimization to obtain a stable Fe (110) surface; placing an inhibitor molecule on a top position of the Fe (110) surface in sequence and performing structural optimization to obtain a stable adsorption structure; adding a water molecule layer on the inhibitor molecule and performing structural optimization to obtain a stable co-adsorption system; calculating a planar average electron potential energy of the co-adsorption system to obtain an electrode potential of the system and surface charge information of the co-adsorption system; taking the co-adsorption system as a cathode and an anode, simulating anode electron loss and cathode electron gain processes in a corrosion process, calculating electrode potentials of the system in different charge states, linearly fitting the obtained electrode potentials, and obtaining a theoretical polarization curve. The application can preferably give polarization curves of various inhibitors on different metal surfaces.

The invention discloses an optimization method for a grid mesh structure of a micro-grid gas detector. The optimization method comprises the following steps: 1, establishing a finite element model of the micro-grid gas detector; 2, converting the obtained target candidate structure set into a Garfield + + readable format, and importing the converted target candidate structure set into a Garfield + + readable format; 3, generating a specified number of spatially distributed initial ionization electrons in the drift region, and tracking the drift trajectory of the initial ionization electrons from the generation position to the grid mesh; 4, performing avalanche multiplication on the penetrating electrons to generate secondary electrons, tracking movement tracks of the secondary electrons and ions, and calculating electron gain and an ion feedback coefficient; 5, outputting an original current signal and obtaining an output voltage pulse signal; and 6, analyzing a plurality of performance indexes obtained under different grid structure parameters, and determining a comprehensive score through an analytic hierarchy process to determine the optimal configuration of the grid structure parameters. According to the method, the grid mesh structure is optimized from the microcosmic electron behavior process for the first time, the trial and error cost can be remarkably reduced, and physical simulation and parameter optimization functions are deeply fused.

This invention discloses a method for optimizing the grid structure of a microgrid gas detector, comprising the following steps: 1. Establishing a finite element model of the microgrid gas detector; 2. Converting the obtained target candidate structure set into a Garfield++ readable format and importing it; 3. Generating a specified number and spatially distributed initial ionized electrons within the drift region and tracking their drift trajectory from the generation location to the grid; 4. Avalanche multiplication of penetrating electrons to generate secondary electrons, tracking the motion trajectories of secondary electrons and ions, and calculating the electron gain and ion feedback coefficient; 5. Outputting the original current signal and obtaining the output voltage pulse signal; 6. Analyzing multiple performance indicators obtained under different grid structure parameters, and determining the optimal configuration of the grid structure parameters through the analytic hierarchy process (AHP) to obtain a comprehensive score. This invention is the first to achieve grid structure optimization from the microscopic electronic behavior process, which can significantly reduce trial and error costs and deeply integrate physical simulation and parameter optimization functions.

This invention relates to the field of microelectronic device technology, and more particularly to a single-molecule memristor-rectifier device based on supramolecular assembly and its fabrication method. The fabrication method involves covalently linking a guest molecule B to the ends of a graphene electrode pair, ensuring a stable and tight interfacial bond between the supramolecular functional molecule and the electrode. Subsequently, the graphene electrode pair connected to the guest molecule B is immersed in a solution containing a host molecule A and a guest molecule C, forming a supramolecular functional molecule between the graphene electrode pairs. The guest molecule C in the supramolecular functional molecule possesses intrinsic redox activity; its molecular structure itself can undergo reversible electron gain and loss processes, thereby achieving controllable and reversible adjustment of the intramolecular charge distribution. Under the influence of an electric field, the reversible redox reaction of the guest molecule C triggers significant changes in the intramolecular charge distribution and electron transport characteristics, ultimately achieving reliable switching between high and low resistance states of the device.

The utility model discloses an automatic vacuum breaking and plate removing device which comprises a lifting platform, a crane and a vacuum valve group, the crane comprises a truss and a plurality of first suction cups; an automatic vacuum breaking mechanism is arranged on the truss; in the copper-clad plate releasing process, the magnetic core suction rod and the spring are made to move through electron gaining and losing of the electromagnetic coil, the automatic vacuum breaking mechanism starts to vibrate under the combined action of vacuum and electromagnetic force, a steel plate is driven to vibrate, the vacuum state between the steel plate and the copper-clad plate is promoted to be broken, and full-automatic vacuum breaking is achieved; the vacuum between the copper-clad plate and the steel plate does not need to be broken by manually lifting the plate, the automation level of the plate releasing process is improved, the operation safety is improved, and meanwhile the production efficiency is improved; the problem that the surface of the copper-clad plate is damaged when people lift the plate is solved, and the product quality is improved.

The invention relates to a molecular redox potential prediction method, device and equipment, a medium and a product. The method comprises the following steps: acquiring a potential type of an initial molecular structure; the potential type of the initial molecular structure comprises a single-molecule potential type, a solvation molecule potential type and a broken-bond molecule potential type; performing electron transfer treatment on the initial molecular structure according to the potential type of the initial molecular structure, and predicting the molecular redox potential of the initial molecular structure according to the treated initial molecular structure; the electron transfer treatment comprises at least one of electron gaining and losing treatment, solvation treatment and bond breaking treatment. By adopting the method, the electron transfer treatment corresponding to the potential type can be automatically performed on the initial molecular structure according to the potential type of the initial molecular structure, so that the molecular redox potential of the initial molecular structure can be automatically predicted according to the treated initial molecular structure; therefore, a plurality of practical oxidation-reduction potentials can be quickly and accurately calculated.

This invention discloses an intelligent ORP control system for biochemical water treatment, relating to the field of micro-electric field control technology. The invention includes a wastewater tank, columns located inside the tank, and an electrode array. The wastewater tank is horizontally divided into anaerobic, anoxic, and aerobic zones; vertically, it is divided into upper and lower regions. Each column has three water sampling ports for detecting ORP and other required indicators at different depths within the tank. Differential ORP control is implemented based on the distribution of dissolved oxygen and pollutants at the bottom and top of the tank. This invention utilizes nonlinear micro-electric field control to improve the efficiency of electron gain and loss between organic molecules and O2, compensating for electrochemical factors in the biochemical reaction system that hinder pollutant degradation. This enables the degradation of pollutants by the biofilm under local electric field excitation conditions, thereby achieving precise ORP control in the three-dimensional space within the tank.