32 results about "Nuclear track" patented technology

The present disclosure pertains to a method for analyzing a solid-state nuclear track detector, SSNTD, image including pits, to determine particle information for at least one particle species. The method comprises the following steps of: A first step of obtaining a SSNTD image including pits. A second step of obtaining pit occurrence information from the SSNTD image, the pit occurrence information being indicative of a number of pits in the SSNTD image. A third step of obtaining first pit information from the SSNTD image, the first pit information being indicative of a physical property of the pits. A fourth step of obtaining a distribution of the pit information based on the first pit information and the pit occurrence information. A fifth step of calculating an expected distribution of the first pit information for the at least one particle species based on calibration information. A sixth step of comparing the expected distribution to the distribution of the pit information. A seventh step of determining particle information for the at least one particle species based on the result of the comparison, the particle information being indicative of a physical property of the at least one particle species, and the calibration information being indicative of a relationship between a second pit information and the at least one particle species at given analysis conditions.

The invention discloses a colorectal cancer Septin9 gene methylation detection kit based on a graded anchoring probe, and belongs to the technical field of molecular diagnosis. The graded anchoring probe is composed of a specific capture probe (F1), a precise anchoring probe (R1), a synergistic blocking probe (F2 / R2) and a short chain complementary sequence (S1) which are Septin9 methylation specific probes and can be fixed in a conical pore channel of a nuclear track membrane in a graded manner to form a capture-anchoring-blocking functional chain; during application, a general accumulation body is formed by combining with a Septin9 methylation target, a nuclear track membrane pore channel is blocked, current drop is caused, and detection is realized. Through cooperation of the probe, the nuclear track membrane and the electrochemistry, the problems of insufficient sensitivity, poor stability and poor specificity of traditional detection are solved, and the kit is suitable for ultra-early diagnosis of colorectal cancer.

The utility model relates to a film cutting and laminating mechanism, which is mounted on a nuclear track film air regulating valve assembly production line through a rack, is used for cutting a nuclear track film and laminating the nuclear track film on the surface of a bottom piece, and is characterized by comprising a lifting component, a lifting component and a film laminating component, the unwinding roller set is formed by combining a pair of parallel carrier rollers arranged side by side, and a bearing space of the unwinding roller is formed above the two carrier rollers; the winding roller group is used for spreading the nuclear track film on the unwinding roller and conveying the nuclear track film to a film cutting and laminating station along a certain track; the winding roller set is used for winding and recycling the nuclear track film after film cutting and film covering are completed; and the laser film cutting machine is used for cutting the nuclear track film which is coated in place. The device is compact and reasonable in structural design, fast cutting and covering of a nuclear track membrane on a tray bottom piece are completed through action coordination and cooperation of all assemblies, the device is suitable for the production rhythm of a nuclear track membrane air adjusting valve assembly production line, and production efficiency is greatly improved.

The utility model discloses a self-pressure-relief waterproof loudspeaker with a waterproof and breathable nuclear track vibrating membrane, and belongs to the technical field of loudspeakers. Comprising a loudspeaker support, a nuclear track waterproof breathable vibrating membrane and a loudspeaker surface cover, the nuclear track waterproof breathable vibrating membrane is composed of a nuclear track membrane, one end of the loudspeaker support is provided with a loudspeaker magnetic circuit, loudspeaker coils are arranged inside and outside the loudspeaker magnetic circuit, and the loudspeaker coils are fixedly connected with the nuclear track waterproof breathable vibrating membrane. The loudspeaker surface cover presses the edge of the nuclear track waterproof breathable vibrating membrane on the loudspeaker support. Compared with a first-generation self-pressure-relief waterproof loudspeaker, the self-pressure-relief waterproof loudspeaker is simple in production process. The nuclear pore waterproof and breathable vibrating membrane achieves waterproof and breathable functions, is high in mechanical strength and good in toughness, and meets the requirements of deep waterproof products for toughness and high-pressure tearing of the waterproof and breathable membrane. The nuclear track membrane is good in air flow consistency, can meet the requirements of an electronic product with a built-in air pressure sensor and an electronic product for accurately measuring the current altitude, and has deep waterproof and air leakage functions.

The invention belongs to the field of membrane material preparation, and relates to an irradiation preparation method of a nuclear track membrane with uniformly distributed pores, which comprises the following steps: determining the vertical size of a beam spot according to the size of a beam window; arranging an original nuclear track membrane, and ensuring that the original nuclear track membrane is stretched and tightened; carrying out one-dimensional scanning on the nuclear track membrane original membrane by adopting an ion beam with the determined vertical size; and in the one-dimensional scanning process, the irradiation fluence I0 of the irradiation single scanning period is determined according to the transmission rate v and the transverse scanning frequency f. The transmission rate v and the transverse scanning frequency f are used as main control parameters for coupling, the accuracy of the irradiation fluence I is achieved, meanwhile, the irradiation uniformity is guaranteed, transverse stripes generated by irradiation can be avoided while the target irradiation fluence is achieved, and uniform pore distribution in the nuclear pore membrane irradiation preparation process is achieved.

The invention belongs to the technical field of electroacoustics, and particularly relates to a sound production device and electronic equipment, the sound production device comprises a shell and a sound production monomer and a breathable separator which are arranged in the shell, the sound production monomer is matched with the shell to define a front sound cavity and a rear sound cavity in the shell, the rear sound cavity is filled with molecular sieve powder particles, and the breathable separator is arranged in the shell. The breathable separator is used for separating the molecular sieve powder particles from the sound production monomer, the breathable separator is a nuclear track membrane, the nuclear track membrane is provided with a plurality of breathable micropores, each breathable micropore is provided with an airflow pore channel penetrating through a membrane body, and an inclination angle alpha and 0 degree lt is formed between the extension direction of at least part of the airflow pore channels and the thickness direction of the membrane body in the flowing direction of airflow; [alpha] [lt]; and 90 degrees. According to the sound production device, under the condition that the required ventilation volume is achieved, molecular sieve powder particles can be more effectively isolated and protected, and the powder particles are prevented from leaking to pollute the sound production monomers.

The invention discloses an electrochemical luminescence biosensor based on a functionalized nuclear track membrane. According to the electrochemical luminescence biosensor, a nuclear track membrane is used as a substrate, and terpyridyl ruthenium functionalized silver nanoparticles are modified in nanometer pore channels of the nuclear track membrane and are used as ECL illuminants; a gold nano layer is loaded on the outer surface of the nuclear track membrane through a spin-coating method, and a trialkali matrix consisting of a dopamine aptamer and an auxiliary chain containing a hydrophobic group is fixed. When the dopamine is combined with the main chain of the aptamer, the structure of the trialkali matrix is unwound to release an auxiliary chain, the hydrophobic barrier is eliminated, so that the nano pore channel is converted into an open state from a closed state, and the material in the pore channel is in contact with a co-reactant tripropylamine (TPrA) in the electrolyte to generate a remarkably enhanced ECL signal. The dopamine concentration is in a good linear relationship with the ECL strength in a range of 0.1 nM to 10 mu M (R2 is equal to 0.995). According to the sensor, the interface stability is enhanced through the gold nanolayer, the recognition precision is improved through the aptamer, the pore permeability is dynamically regulated and controlled through the hydrophobic group, and high-selectivity detection of dopamine is achieved.

The invention discloses an atomizer with a replaceable nuclear track diaphragm and an operation method, and relates to the technical field of atomizers, the atomizer comprises a liquid bin, a boss is arranged in the middle of the liquid bin, an atomization groove is formed in the middle of the boss, a liquid storage cavity is formed between the liquid bin and the boss, and a metal loading plate, an atomization nuclear track diaphragm and a piezoelectric ceramic ring are arranged in the atomization groove; micropores are distributed in the center of the atomization nuclear pore membrane, a water drawing mechanism is arranged on the boss, the piezoelectric ceramic ring is connected with a power source, a clamping assembly matched with the atomization nuclear pore membrane is arranged on the atomization groove, the clamping assembly comprises a lifting pressing plate which is arranged in the atomization groove and connected with the piezoelectric ceramic ring, and a displacement mechanism for promoting the lifting pressing plate to move in the vertical direction is arranged on the boss. A locking mechanism is arranged between the lifting pressing plate and the atomization nuclear track membrane and comprises an arc-shaped protrusion arranged on the atomization nuclear track membrane, and an arc-shaped groove is formed in the corresponding position of the lifting pressing plate. The atomization nuclear track membrane can be replaced conveniently, maintenance of the atomization nuclear track membrane is facilitated, the maintenance cost is low, and daily batch use is facilitated.

[Problem] To provide a technique capable of visualizing, with high spatial resolution in neutron imaging, the internal structure of an object to be inspected, without performing chemical treatment that is required when a nuclear emulsion is used. [Solution] A neutron position recording device 10 is provided with a conversion film 1 and a fluorescent nuclear track detector 2 in order to generate an image representing the fine structure of an object T to be inspected. When each neutron that has passed through the object T to be inspected is incident, the conversion film 1 converts each neutron into a charged particle. The fluorescent nuclear track detector 2 has a surface 2a facing the conversion film 1, and records, due to the incidence of the charged particle from the conversion film 1, the track of the charged particle corresponding to the position of the neutron.

The utility model discloses a nuclear track membrane assembly splitting device, and relates to the technical field of nuclear track membrane assembly processing, the nuclear track membrane assembly splitting device comprises a bearing disc, a plurality of placing grooves are arranged at the upper end of the bearing disc in a circular array mode, the nuclear track membrane assembly is composed of a nuclear track membrane, an upper clamp and a lower clamp, a top box is arranged above a bottom box, and the top box is arranged above the bottom box. A splitting part, a diaphragm recycling part and a clamp recycling part are sequentially arranged between the bottom box and the top box in the rotating direction of the bearing disc. A plurality of placing grooves are formed in the upper end of a bearing disc in a circular array mode, a splitting part, a diaphragm recycling part and a clamp recycling part are sequentially arranged in the rotating direction of the bearing disc, a lower pressing cover and a jacking column move at the same time through a linkage mechanism, the moving directions are opposite, and a hinge rod drives a jacking rod to move through an installation sliding rod; and during actual machining, feeding, removal of nuclear track membranes, recovery of the nuclear track membranes, and recovery of the upper clamp and the lower clamp can be completed at the same time.

The utility model discloses a continuous type nuclear track membrane detection device, relates to nuclear track membrane detection technical field, the device includes conveyer belt and second bracing frame, conveyer belt both ends are equipped with driving roller and transmission roller respectively, said second bracing frame both ends are equipped with feeding roller and wind-up roller respectively, said second bracing frame both ends are equipped with driving subassembly, and the driving subassembly is equipped with driving roller and transmission roller respectively. According to the nuclear track membrane cutting device, through the arrangement of the fixing mold, the bearing plate and the ejector rod, when the nuclear track membrane cutting component cuts a membrane belt, a nuclear track membrane can conveniently fall to the upper end of the bearing plate, the nuclear track membrane can conveniently fall to the upper end of the bearing plate, the detection assembly is arranged on the upper portion of one end of the conveying belt, and the detection assembly is arranged on the upper portion of the middle of the second supporting frame. And meanwhile, the nuclear track membrane detection component drives the mounting friction wheel to rotate while detecting the nuclear track membrane, so that continuous detection of the nuclear track membrane detection component is facilitated.

The invention discloses an etching production device for nuclear track membrane production, and relates to the technical field of plastic film nuclear track membrane etching.The device comprises an etching box and a cleaning box, a second support is installed on the side wall, away from the cleaning box, of the etching box, and unwinding equipment is installed at the upper end of the second support; a first support is arranged on the side wall, away from the etching box, of the cleaning box, a winding device is installed at the upper end of the first support, supporting guide rollers are installed at the upper end of the side wall of the etching box and the upper end of the side wall of the cleaning box, a plurality of first guide rollers are installed in the etching box, and a plurality of second guide rollers are installed in the cleaning box. According to the invention, a brand-new high-concentration etching solution is sprayed onto a plastic film, the etching efficiency of the etching solution on the plastic film is effectively improved, water after cleaning is conveyed to other cleaning modules close to one side of the etching box in sequence, multiple purposes of water are achieved, and the concentration of the etching solution in recycled wastewater is improved.

The invention discloses a gradient nuclear track membrane based on heavy ion irradiation and application of the gradient nuclear track membrane in cherry preservation, and belongs to the technical field of nuclear track membrane preparation. The method is used for solving the problems that in the prior art, PET films do not have pore diameters with moderate quantity and particle sizes, so that the PET films for storing cherries are too high in compactness and low in air permeability, and excessive anaerobic respiration exists during cherry storage. In addition, the technical problem that the PET film is poor in biological antibacterial activity is solved. The invention provides a gradient nuclear track membrane based on heavy ion irradiation for cherry preservation. The gradient nuclear track membrane based on heavy ion irradiation is composed of a nuclear track membrane substrate, and a first coating layer and a second coating layer which are sequentially coated on the surface of the nuclear track membrane substrate, the nuclear track membrane substrate is obtained by sequentially carrying out heavy ion irradiation, ultraviolet sensitization and alkaline etching liquid etching on a PET (Polyethylene Terephthalate) film; the first coating solution is obtained by dissolving copper zinc pyrithione and dopamine in ethanol, and the second coating solution is obtained by dissolving silver nitrate in ethanol.

The invention belongs to the technical field of electroacoustics, and particularly relates to a sound production device and electronic equipment, the sound production device comprises a shell and a sound production monomer and a breathable separator which are arranged in the shell, the sound production monomer is matched with the shell to define a front sound cavity and a rear sound cavity in the shell, the rear sound cavity is filled with molecular sieve powder particles, and the breathable separator is arranged in the shell. The breathable separator is used for separating the molecular sieve powder particles from the sounding monomer, the breathable separator is an anti-sticking nuclear track membrane with an anti-sticking coating, and the dyne value of the anti-sticking coating is lt; 38). The anti-sticking nuclear track membrane is provided with the anti-sticking coating, anti-sticking components in the anti-sticking nuclear track membrane enable molecular sieve powder particles not to adhere to the anti-sticking nuclear track membrane, the molecular sieve powder particles easily fall off from the surface of the anti-sticking nuclear track membrane, and the problem that the air permeability of the air-permeable separator is affected due to the fact that the molecular sieve powder particles adhere to the surface of the air-permeable separator is effectively solved.

The invention provides a modified allyldiglycol carbonate sheet for track detection and a preparation method thereof, and the modified allyldiglycol carbonate sheet is prepared by curing allyldiglycol carbonate and a comonomer as main raw materials under ultraviolet irradiation. By adding the comonomer, a radiation sensitive group can be introduced into the polymer, the crosslinking density is effectively improved, the track detection efficiency is improved, and meanwhile, the curing speed is not influenced. The ultraviolet light initiator is added for light curing, the curing speed can be effectively increased, the curing time can be effectively shortened, compared with a peroxide initiator, the method can achieve curing at the normal temperature, the reaction controllability is higher, and the prepared modified allyl diethylene glycol carbonate material is high in transmittance, excellent in mechanical property and suitable for large-scale production. The method can be used for a solid nuclear track detector, and is high in track detection efficiency and good in application prospect.

The invention discloses a marine container nuclear track membrane fresh-keeping method which comprises the following steps: S1, respiration characteristic analysis and parameter determination: respiration characteristic parameters of goods to be transported are obtained, and the respiration characteristic parameters at least comprise the respiration rate of the goods under the aerobic condition, the respiration rate of the goods under the anaerobic condition and the ethylene release rate; and determining a target gas regulation and control range and a nuclear track membrane aperture parameter matched with the cargo type based on the breathing characteristic parameter and in combination with a basic fresh-keeping temperature of the cargo. And through the collaborative design of breathing characteristics, aperture parameters and installation layout, the precision of gas regulation and control is realized. The aperture of the nuclear track membrane is customized on the basis of parameters such as the cargo breathing rate and the ethylene release amount, the high selectivity of the monodisperse aperture of the nuclear track membrane is combined, O2 in the container can be stably controlled to be 2%-8%, CO2 can be controlled to be 3%-12%, ethylene is smaller than or equal to 0.1 ppm, the gas fluctuation range of the container is narrowed by 60% compared with that of a traditional controlled atmosphere container, and the breathing effect and the ethylene ripening effect are remarkably reduced.

The utility model discloses a self-pressure-relief waterproof loudspeaker of a nuclear track membrane waterproof breathable sound production dome, and belongs to the technical field of deep waterproof loudspeakers. Comprising a support, a concave vibrating membrane and a nuclear track membrane waterproof breathable sounding dome. The concave vibrating membrane is provided with an air circulation area, and the nuclear track membrane waterproof breathable sound production dome covers and is fixed to the air circulation area of the concave vibrating membrane. The self-pressure-relief waterproof loudspeaker with the nuclear track membrane waterproof breathable sounding globe roof is simple in production process and low in cost, and the waterproof grade can reach more than 50 meters. The waterproof breathable sounding dome with the nuclear track membrane is high in mechanical strength and good in toughness, meets the requirements of deep waterproof products on toughness, high-pressure strength, no deformation or fracture and the like of the waterproof breathable dome, is controllable in pore density, consistent in pore diameter, regular in shape and good in air flow consistency, and meets the requirements of electronic products with built-in air pressure sensors. The current altitude height is accurately measured, and the functions of deep water prevention, diving, ventilation and pressure relief are achieved.

The invention belongs to the technical field of electroacoustics, and particularly relates to a sound production device and electronic equipment, the sound production device comprises a shell with an internal space, and a sound production monomer and a breathable separator which are arranged in the shell, the sound production monomer is matched with the shell to define a front sound cavity and a rear sound cavity in the internal space, the rear sound cavity is filled with molecular sieve powder particles, the average particle size D50 of the molecular sieve powder particles is 20-50 microns, and the mass ratio of silicon to aluminum is 1t; 200); the breathable separator is used for separating the molecular sieve powder particles from the sounding monomer, the breathable separator is a nuclear track membrane, the aperture of the nuclear track membrane is 6-14 [mu] m, and the air permeability of the breathable separator is 1000-6000 L / m < 2 >. S at 20 mm H2O. Under the condition that the nuclear track membrane meets the acoustic use requirement, the aperture of the nuclear track membrane is far smaller than the particle size of the molecular sieve powder particles, and the molecular sieve powder particles can be effectively isolated and protected and can be prevented from leaking out to pollute the sounding monomer.

The invention belongs to the technical field of electroacoustics, and particularly relates to a sound production device and electronic equipment, the sound production device comprises a shell and a sound production monomer and a breathable separator which are arranged in the shell, the sound production monomer is matched with the shell to define a front sound cavity and a rear sound cavity in the shell, the rear sound cavity is filled with molecular sieve powder particles, and the breathable separator is arranged in the shell. The breathable separator is an antistatic nuclear track membrane used for isolating molecular sieve powder particles and a sound production monomer, and comprises a nuclear track membrane body and an antistatic coating arranged on the surface of the nuclear track membrane body; the thickness of the antistatic coating is 0.05-6 [mu] m, and the surface resistance value of the antistatic nuclear track membrane is 105-1012 omega / sq. The antistatic nuclear track membrane is provided with the antistatic coating, so that the molecular sieve powder particles are not easily adsorbed on the surface of the breathable separator and enter the pore channels, the problem that the molecular sieve powder particles are difficult to fill can be effectively solved, and meanwhile, the problem that the acoustic performance is influenced due to the fact that the molecular sieve powder particles are adsorbed on the surface of the breathable separator is also effectively solved.

The utility model relates to a whole piece unloading mechanism, which is arranged on a nuclear track membrane air-conditioning valve assembly production line through a fixing seat, is used for unloading and stripping a nuclear track membrane air-conditioning valve assembled into a whole piece from a tray, and is characterized by comprising a lifting material platform, a lifting mechanism and a lifting mechanism, the unloaded empty trays are conveyed downwards; the material clamping assembly is used for grabbing the finished material parts on the tray and putting the finished material parts into the hopper; and the hopper transferring assembly is used for transferring the hopper to the position below the material clamping assembly so as to bear the material parts. According to the utility model, the plate changing table, the clamping component and the hopper transferring component of the speed chain line body are combined in order, and the whole piece on the tray can be quickly and efficiently unloaded through the coordination and cooperation of the actions of the plate changing table, the clamping component and the hopper transferring component. In addition, the hopper is provided with an independent material collecting area, the problems occurring in all links of a production line can be recognized according to the states of finished material pieces in different material bins, and therefore equipment can be debugged and maintained in a targeted mode.

The invention provides a nanopore nuclear track membrane rapid nondestructive detection method based on a dark field scattering optical method, which comprises the following steps: focusing a nuclear track membrane to be detected by using a dark field optical microscope, adjusting to a dark field mode after focusing, and obtaining a scattered light image of the nuclear track membrane to be detected in the dark field mode; determining the image area and the number of scattered light spots in the image based on the scattered light image, and obtaining the density of the nuclear track membrane; moving the light spot center of the dark-field optical microscope to the position of a single hole for dark-field scattering spectrum acquisition to obtain single-hole dark-field scattering spectrum intensity I; and based on a relational expression I = aD2 + b between the scattering spectrum intensity I and the aperture D, calculating the aperture of the nuclear pore model through the single-pore dark field scattering spectrum intensity I. Therefore, the method has the advantages of simplicity and convenience in operation, low cost, high detection speed and the like, and can be widely applied to the fields of nanotechnology and material science.

The invention belongs to the technical field of electroacoustics, and particularly relates to a sound production device and electronic equipment, the sound production device comprises a shell and a sound production monomer and a breathable separator which are arranged in the shell, the sound production monomer is matched with the shell to define a front sound cavity and a rear sound cavity in the shell, the rear sound cavity is filled with molecular sieve powder particles, and the breathable separator is arranged in the shell. The breathable separator is used for separating the molecular sieve powder particles from the sound production monomer and comprises a nuclear track membrane and a supporting layer arranged on the surface of one side of the nuclear track membrane; the tensile strength gt of the breathable separator at 15-25 DEG C; the tensile strength gt at the temperature of 110 DEG C to 150 DEG C is 15 MPa; and the pressure is 10 MPa. According to the sound production device, through supporting of the supporting layer, the breathable separator has high tensile strength and can resist external force stretching without being broken, molecular sieve powder particles are effectively isolated and protected, and the molecular sieve powder particles are effectively prevented from leaking out to pollute the sound production monomer.

The utility model discloses a replaceable and detachable nuclear track membrane structure and an atomizer, and relates to the technical field of atomizers, the replaceable and detachable nuclear track membrane structure comprises a liquid bin, a boss is arranged in the middle of the liquid bin, an atomization groove is formed in the middle of the boss, a liquid storage cavity is formed between the liquid bin and the boss, a metal loading plate, an atomization nuclear track membrane and a piezoelectric ceramic ring are arranged in the atomization groove, and micropores are distributed in the center of the atomization nuclear track membrane. The boss is provided with a water drawing mechanism, the piezoelectric ceramic ring is connected with a power source, the atomization groove is provided with a clamping assembly matched with the atomization nuclear track membrane, the clamping assembly comprises a lifting pressing plate which is arranged in the atomization groove and connected with the piezoelectric ceramic ring, and the boss is provided with a displacement mechanism for promoting the lifting pressing plate to move in the vertical direction. A locking mechanism is arranged between the lifting pressing plate and the atomization nuclear track membrane and comprises an arc-shaped protrusion arranged on the atomization nuclear track membrane, and an arc-shaped groove is formed in the corresponding position of the lifting pressing plate. The atomization nuclear track membrane can be replaced conveniently, maintenance of the atomization nuclear track membrane is facilitated, the maintenance cost is low, and daily batch use is facilitated.

The invention discloses a composite nuclear track membrane as well as a preparation method and application thereof. The composite nuclear track membrane comprises a supporting base layer and a two-layer structure membrane formed on the supporting base layer through membrane scraping and finishing, wherein the thickness of the supporting base layer ranges from 50 micrometers to 120 micrometers, the thickness of the two-layer structure membrane ranges from 10 micrometers to 50 micrometers, and the two-layer structure membrane comprises a compact layer and a loose layer; the thickness of the compact layer is 100-200 nm, the aperture of the compact layer is 0-40 nm, the thickness of the loose layer is 10-50 [mu] m, and the aperture of the loose layer is 0.1-10 [mu] m; the composite nuclear track membrane is applied to the biological component separator. The composite nuclear track membrane as well as the preparation method and the application thereof aim at solving the problems of a dialysis membrane used by a biological component separator in the prior art so as to meet the requirement for accurate separation of biological substances in medical and biological experiments, and have important practical significance.

The invention discloses a full-automatic solid nuclear track detector chemical etching system, which relates to the technical field of chemical etching and comprises a clamp, a fuming cupboard, a chemical etching tank, a neutralizing tank, a cleaning tank, a drying assembly, a driving mechanism and a control system. The clamp is used for loading detector elements. The fuming cupboard is used for providing an installation foundation and a ventilation environment. The chemical etching groove is connected with the fuming cupboard and used for containing chemical etching liquid. The neutralizing tank is connected with the fuming cupboard and used for containing neutralizing liquid with the acid-base property opposite to that of the chemical etching liquid. The cleaning tank is connected with the fuming cupboard and used for water washing. The drying assembly is used for providing hot air. The driving mechanism is connected with the clamp and used for moving the clamp. The control system is at least electrically connected with the driving mechanism to control the moving path of the clamp. Compared with the prior art, unattended operation automation of chemical etching can be achieved, manpower consumption is reduced, and etching precision and efficiency are improved.

The utility model discloses a liquid quality adjusting device for a solid nuclear track etching experiment. The liquid quality adjusting device comprises a measuring water tank, a T-shaped fixing frame, a conductivity sensor, a water tank fixing plate, a water replenishing pipe and a water pumping pipe, the measuring water tank is arranged above the middle part of the water tank fixing plate; the water tank fixing plate is mounted at the top end of the etching water tank; the T-shaped fixing frame is connected with the top end of the measuring water tank, and the lower end of the T-shaped fixing frame extends into the measuring water tank; the conductivity sensor is positioned at the lower end in the T-shaped fixing frame; one end of the water replenishing pipe is externally connected with a water source, and the other end extends into the etching water tank; the other end of the water pumping pipe is connected with the measuring water tank; according to the utility model, the etching liquid is pumped into the measuring water tank through the water pumping pipe, the conductivity of the etching liquid is detected through the conductivity sensor in the measuring water tank, and the required water replenishing amount can be accurately calculated by comparing the original conductivity, so that the stability of the concentration of the etching liquid in the etching water tank is ensured, and the overall operation is convenient.

The invention discloses a manufacturing method of a fresh-keeping cabinet composed of a phase-change material and a nuclear track membrane, and the manufacturing method comprises the following steps: S1, preparing a plastic box body with a containing cavity which is used for placing articles to be preserved; s2, an interlayer is arranged in the wall body of the plastic box body or an independent phase change material unit is arranged in the containing cavity, and the containing cavity is filled with a paraffin phase change material; s3, according to the size of the plastic box body, one or more ventilation holes of 5-10 cm are formed in the side wall or the top of the plastic box body; and S4, a layer of nuclear track membrane is attached to each vent hole, and the nuclear track membrane has the preset hole diameter and hole density so as to regulate and control the micro-atmosphere environment. By utilizing the latent heat characteristic of the paraffin phase-change material, the temperature in the fresh-keeping cabinet can be kept relatively stable within a certain period of time without an external power supply, energy consumption is remarkably reduced, and the fresh-keeping cabinet belongs to an environment-friendly technology and is particularly suitable for being used in regions with unstable electric power, outdoor operation, short-distance transportation or occasions without power supplies.

The invention provides a detection method and application of a nuclear track membrane-based protein biomarker, and relates to the technical field of electrochemical detection.The detection method comprises the steps that amination modified gold nanoparticles are connected to the inner wall of a nuclear track membrane pore channel with carboxyl, the conductivity of the pore channel is improved, then a first antibody is added to be combined with the gold nanoparticles, and the first antibody is obtained; then incubating with a protein marker and non-conductive nanoparticles combined with a second antibody, and after incubation is finished and cleaning is performed, detecting a difference value of current passing through a pore channel through an electrochemical workstation so as to realize quantitative detection of the concentration of the marker. The non-conductive nanoparticles connected with the second antibody can block the pore channel and obviously reduce the current, so that the current difference is larger, the change is more obvious, and the detection range is larger. The detection method disclosed by the invention has the characteristics of rapidness, accuracy, high sensitivity, simplicity and convenience in operation and low cost, and has very important theoretical and practical significance in detection of clinical protein markers.

The invention relates to the technical field of food fresh-keeping packaging materials, and particularly discloses a fresh-keeping packaging material based on a heavy ion nuclear track membrane and three-dimensional graphene. The fresh-keeping packaging material comprises a degradable PET matrix layer, a gradient nuclear track film layer and a three-dimensional graphene-nano-copper composite antibacterial layer, and the preparation method of the fresh-keeping packaging material comprises the following steps: soaking the degradable PET matrix layer, the gradient nuclear track film layer and the three-dimensional graphene-nano-copper composite antibacterial layer in a silane coupling agent solution; then placing the degradable PET matrix layer at the bottom of a hot pressing mold, covering the degradable PET matrix layer with the gradient nuclear track film layer, covering the gradient nuclear track film layer with the three-dimensional graphene-nano-copper composite antibacterial layer, performing hot pressing, and performing laser micropore treatment to obtain the graphene-nano-copper composite antibacterial film. The prepared fresh-keeping packaging material can meet the triple requirements of precise controlled atmosphere, long-acting antibiosis, environmental protection and degradability, and has a wide application prospect.

The invention discloses a disposable electrochemical biosensor detection kit, and belongs to the technical field of in-vitro diagnosis. The kit is a disposable in-vitro diagnosis product and is divided into two product systems, namely a molecular detection system and an immunodetection system; the core components of the molecular detection kit are an integrated disposable H-type electrolytic cell, an isothermal amplification buffer solution, a positive control solution, a negative control solution and a blank control solution. The core components of the immunodetection kit are an integrated disposable H-type electrolytic cell, a detection reagent, a substrate reagent, a calibrator I, a calibrator II, a quality control product I and a quality control product II. The kit takes a functionalized nuclear track membrane as a core, the nuclear track membrane modifies corresponding target recognition probes in advance according to different detection targets, and the target recognition probes are pre-sealed and fixed in an H-shaped electrolytic cell to form a non-detachable integrated detection unit with the electrolytic cell; transmembrane transmission of a sample is realized through pressurization of a single inflation port, and high-precision detection can be realized by combining isothermal amplification or a double-antibody sandwich technology and an electrochemical sensing technology.