1960 results about "Intermediate product" patented technology

The invention discloses a health food production line control method and system based on deep management, and relates to the technical field of food production control. A raw material feature database is established, a first analysis result is output as a raw material deviation evaluation reference, data of a current batch of raw materials are collected, differences are compared, and a raw material deviation result is output; the method comprises the following steps: collecting process data, analyzing whether the process data is abnormal or not by combining with raw material deviation, generating an adjustment suggestion, executing formula and parameter adjustment, triggering a self-repairing mechanism when the process data is abnormal, identifying an intermediate product state, evaluating a quality risk level and triggering early warning. Dynamic optimization of a formula and process parameters is achieved, meanwhile, an image and spectrum fusion early warning technology is introduced, the quality control ability of intermediate products is improved, finally, optimization parameter configuration is generated for the next batch through whole-process data chain construction and causal reasoning analysis, and self-adaptive control and quality steady-state improvement in a production closed loop are achieved.

One aspect is a method for producing a first intermediate product. A feedstock is provided that comprises a first polyester. The first polyester is contacted with a further organic compound in a volume section V3 to obtain a further initial mixture. A weight average molar mass of the first polyester is reduced in the volume section V3 to obtain a first intermediate mixture. The first intermediate mixture comprises a first intermediate product and the further organic compound. First particulated material is added to the first intermediate mixture in a volume section V4. A filtering means is pre-coated with the first particulated material. At least one impurity is at least partially removed from the first intermediate mixture using the filtering means. The first particulated material has a median pore diameter in the range of 5 mm to 20 mm.

One aspect is a method for producing a first intermediate product. A feedstock is provided that comprises a first polyester. The first polyester in the feedstock is in the form of a plurality of fragments. The feedstock is contacted with a first amount of a first organic compound in a volume section V1 to obtain a first initial mixture. The first amount is in the form of a liquid. The first polyester is contacted with a further organic compound in a volume section V3, to obtain a further initial mixture. A weight average molar mass of the first polyester is reduced in the volume section V3, to obtain a first intermediate mixture. The first intermediate mixture comprisesa first intermediate product andthe further organic compound.30 wt-% or less of the fragments, based on a total weight of the plurality of fragments in the feedstock, have a thickness that is equal to or larger than 1.0 mm.

One aspect is a method for producing a first intermediate product. A feedstock is provided that comprises a first polyester. The first polyester is contacted with a further organic compound in a volume section V3 to obtain a further initial mixture. A weight average molar mass of the first polyester is reduced in the volume section V3 to obtain a first intermediate mixture. The first intermediate mixture comprisesa first intermediate product and;the further organic compound.First particulated material is added to the first intermediate mixture in a volume section V4. A temperature of the first intermediate mixture in the volume section V4 is in the range of 160° C. to 230° C.

The present invention relates to an intelligent material distribution and material taking device and method for solid fermentation of powdery and granular fertilizers, comprising at least one production line, the production line comprising: a longitudinal conveyor belt parallel to the length direction of the fermentation tank; a transverse conveyor belt arranged above the fermentation tank along the width direction of the fermentation tank; a discharge vehicle, including a longitudinal discharge vehicle and a transverse discharge vehicle; a material distribution conveyor belt for receiving the fermentation raw materials scattered by the longitudinal discharge vehicle; a longitudinal receiving hopper; a mobile spiral material taking machine, which is longitudinally slidably arranged in the fermentation tank to collect the intermediate products in the fermentation tank; a controller, which controls the intelligent material distribution and material taking device for solid fermentation of powdery and granular fertilizers to switch between the two working states of distribution and material taking, and controls the transverse conveyor belt and the longitudinal discharge vehicle to keep synchronous longitudinal movement. The controller is used to switch the working state of the material distribution and material taking device, so as to realize intelligent and automatic material distribution and material taking, so as to meet the needs of solid fermentation of powdery and granular fertilizers.

One aspect is a method for producing a first intermediate product. A feedstock is provided that comprises a first polyester. The first polyester is contacted with a further amount of a first organic compound in a volume section V2. At least one impurity is present in the volume section V2, and the volume section V2 has a first zone and a further zone. The first polyester is contacted with a further organic compound in a volume section V3 to obtain a further initial mixture. A weight average molar mass of the first polyester is reduced in the volume section V3 to obtain a first intermediate mixture. The first intermediate mixture comprisesa first intermediate product; andthe further organic compound.A relative ratio of a particle count per area of the at least one impurity in the first zone to a particle count per area of the at least one impurity in the further zone is equal to or greater than 10.

One aspect is a method for producing a first intermediate product. A feedstock is provided that comprises a first polyester. The feedstock is contacted with a first amount of a first organic compound in a volume section V1 to obtain a first initial mixture. The first amount is in the form of a liquid. The first polyester is contacted with a further organic compound to obtain a further initial mixture. A weight average molar mass of the first polyester is reduced to obtain a first intermediate mixture. The first intermediate mixture has a first intermediate product, the further organic compound. A mass ratio of the feedstock to the first organic compound in the volume section V1 is in the range of 0.02 to 3.

The invention provides a mixed data precision matrix multiplication and addition unit and a calculation method, the matrix multiplication and addition unit comprises a calculation unit, and the calculation unit comprises a format division module, a multiplication array module, an addition tree module, an accumulator module, a normalization module and a shift register module. The calculation unit converts the first input matrix and the second input matrix into input data in a middle floating point format; executing parallel multiplication operation on the input data to generate an intermediate product result; performing index alignment and accumulation on the intermediate product result to generate an intermediate accumulated value; accumulating the intermediate product result and the value of the third input matrix in a form of accumulating an intermediate accumulated value, and outputting an accumulated result; and converting an accumulation result into a normalized result and outputting the normalized result. The format division module supports various precisions and converts data with different widths into an intermediate floating point format, so that other hardware units can be reused, and the problems that hardware resources are complex and different model reasoning scenes are difficult to meet are solved.

The invention provides a photocatalysis and biological reaction mixed efficient air purification system, and relates to the technical field of biological air purification, the system comprises a photocatalysis reaction module, a biological reaction module, an intelligent control module, a sensor monitoring module, a data analysis and optimization module, and a modularization and self-maintenance module; the system is combined with a photocatalytic reaction module and a biological reaction module, a multi-stage degradation and efficient decomposition treatment mode is adopted, the photocatalytic reaction module firstly degrades pollutants in air into intermediate products, then the biological reaction module further degrades the intermediate products through microorganisms, and finally thorough purification is achieved. According to the multi-stage synergistic reaction, the air purification efficiency is remarkably improved, thorough removal of pollutants in the treatment process is ensured, the environmental risk is reduced, various indexes in the degradation process are dynamically adjusted through a multi-target optimization algorithm, it is ensured that each stage achieves the optimal effect, and the performance and stability of the whole system are further improved.

The invention discloses a production scheduling method, a production scheduling system and electronic equipment, and belongs to the technical field of production management and scheduling. The production scheduling method comprises the steps that according to production requirements and a preset production correlation model, a fitness function and an initial production scheduling scheme set are determined, and the fitness function comprises at least two of the following production scheduling strategies: total delay time minimization, resource utilization rate maximization, production line load balancing and intermediate product minimization; at least two preset algorithms are fused, the initial production scheduling scheme set is optimized based on the fitness function, the optimal production scheduling scheme is obtained, and the preset algorithms comprise any one of a genetic algorithm, a simulated annealing algorithm and a tabu search algorithm. The method can solve the problems of insufficient processing of resource constraints, low production scheduling efficiency and incapability of effectively finding the optimal production scheduling scheme in related technologies.

The invention relates to the field of environmental remediation, and discloses a remediation method for high-concentration organic pollutants in soil, which comprises the following steps: firstly, injecting a nano zero-valent iron (nZVI) suspension into the contaminated soil for chemical reduction treatment, then adding sodium persulfate for oxidation treatment, and then adding a nano zero-valent iron (nZVI) suspension into the contaminated soil; the complex organic pollutants are converted into biodegradable intermediate products; then, two-stage microbial communities are introduced in sequence, the first-stage microbial community is used for degrading alcohol and ketone intermediate products, the second-stage microbial community is used for degrading organic acid intermediate products, and thorough mineralization of pollutants is achieved. According to the method, the pollutant degradation rate and the final removal effect can be remarkably improved, and the method is suitable for treatment scenes of various high-concentration organic pollutants and has high adaptability and economic benefits.

The invention discloses a semiconductor device and a manufacturing method thereof, a power module, a power conversion circuit, and a vehicle. The semiconductor device includes a semiconductor body including a well region, a first region, and a second region; the well region is located on the side, away from the first surface, of the first region; the first surface is also provided with a gate trench and a source trench; the second region surrounds the bottom surface and the side wall of the source trench; the trench gate is positioned on one side, far away from the semiconductor body, of the insulating layer in the gate trench; the source trench structure comprises a filling layer located in a source trench; the ohmic contact resistance between the ohmic contact layer and the semiconductor body is smaller than the ohmic contact resistance when the metal titanium and the semiconductor body form ohmic contact; and no chemical reaction intermediate product exists between the filling layer and the ohmic contact layer at the annealing temperature of the ohmic contact layer. According to the technical scheme provided by the embodiment of the invention, the electrical performance of the semiconductor device is improved.

The invention relates to the technical field of adhesives, and discloses a weather-resistant transparent adhesive, a preparation method and application of the weather-resistant transparent adhesive to adhesion of a weather-resistant and wear-resistant transparent film and a color-coated sheet. The preparation method of the weather-resistant transparent adhesive comprises the following steps: reacting 4-(2, 3-ethylene oxide) benzaldehyde with tetrakis (3-mercaptopropionic acid) pentaerythritol ester to obtain an intermediate product A; reacting the intermediate product A with 4, 5-diaminobenzene-1, 2-diphenol to obtain an intermediate product B; preparing nano zinc oxide, performing surface modification on the nano zinc oxide, and grafting the intermediate product B to obtain an organic-inorganic hybrid curing agent; modifying epoxy resin by using the composite modifier to obtain modified epoxy resin; the modified epoxy resin, the organic-inorganic hybrid curing agent and the accelerant are mixed and stirred, and the weather-resistant transparent adhesive is obtained; the weather-resistant transparent adhesive disclosed by the invention is high in transparency and has excellent mechanical strength, toughness, adhesiveness and weather resistance.

The invention discloses a Ca / Mg-based modified biochar material and a preparation method and application thereof, and the preparation method comprises the following steps: pretreatment: drying a biomass material shaddock peel, crushing, sieving, washing and drying, then carrying out acid leaching activation, washing again and drying to obtain high-activity biomass powder for later use; dipping modification: fully mixing the high-activity biomass powder obtained in the pretreatment step with CaO and MgO, adding distilled water, dipping under heating and stirring conditions, then carrying out solid-liquid separation, washing a filter cake for multiple times, freeze-drying, and sieving to obtain an intermediate product; the intermediate product is calcined, naturally cooled, washed and dried, and the Ca / Mg-based modified bimetallic modified charcoal material is obtained and can be applied to adsorption of phosphate in a wastewater solution as an adsorbent. The preparation method is simple, the raw materials are easy to obtain, the cost is low, the material stability is good, the pH adaptability is good, the adsorption effect is good, and the method is suitable for water environments with more complex pollution factors.

The invention relates to a manufacturing method of a small-caliber nickel-copper alloy seamless heat exchange tube. The manufacturing method comprises the steps that S1, a UNS N04400 round steel material is subjected to peeling, PT inspection, shearing, centering, grinding, heating, perforating, water cooling and inspection; s2, a hot-punched blank is only cleaned, and inspection is conducted after point grinding is conducted after internal and external polishing; s3, the obtained pipe blank is subjected to first-pass intermediate product cold rolling, deoiling, straightening, pipe cutting, grinding, inspecting and cleaning; s4, second-pass intermediate product cold rolling, deoiling, heat treatment, straightening, pipe cutting, grinding, inspection and cleaning are conducted; S5, finished product cold rolling is conducted; s6, deoiling a finished product; s7, heat treatment of a finished product; s8, straightening a finished product; s9, performing ultrasonic vortex treatment, water pressure treatment and pipe cutting on a finished product; and S10, finished product surface inspection, size inspection, cleaning, mark spraying and finishing procedures are carried out. The method has the advantages of high one-time inspection qualification rate, yield and dimensional precision of products, good inner and outer surface quality, stable structure performance and high practicability.

The invention relates to the field of piggery tail end odor pollution treatment, and discloses a piggery tail end odor purification filter element preparation method and application, the preparation method comprises the following steps: loading a photocatalyst on the surface of a filter element body to obtain a carrier, respectively inoculating 3-5 kinds of antagonism-free deodorization microorganisms into corresponding LB liquid culture mediums for activation and propagation, and carrying out purification on the LB liquid culture mediums to obtain the piggery tail end odor purification filter element. The preparation method comprises the following steps: preparing a bacterial solution, mixing the bacterial solution to obtain a corresponding bacterial solution, compounding all the bacterial solutions in proportion to obtain a compound bacterial solution, infiltrating a carrier in the compound bacterial solution, and carrying out biofilm formation at room temperature to obtain the filter element. After the photocatalyst on the surface is illuminated, some refractory pollutants can be decomposed into smaller intermediate products which are easier to utilize by microorganisms by utilizing light energy, a more suitable substrate is provided for the microorganisms, and the microorganisms can further thoroughly decompose the intermediate products into harmless substances such as carbon dioxide and water, so that the degradation effect is improved. Therefore, the overall degradation efficiency and degree of pollutants are improved.

The invention provides an application of a transporter in improving the yield and / or purity of lactose-N-neotetraose (LNnT), and relates to the technical field of genetic engineering. Transporter proteins of different sources are screened, the transporter protein which aims at LNnT synthesis and can achieve efficient transportation is obtained, and a new biological material is provided for LNnT synthesis. Moreover, the efficient transporter obtained by screening is used for transporting the LNnT to the outside of cells, so that the pressure on the cells caused by overhigh concentration of intracellular products is relieved, the conversion of an intermediate product LNT II to the LNnT is improved to the maximum extent, the yield is improved while byproducts are reduced, the yield of a byproduct lactose-N-neohexaose is also reduced, and the separation and purification of later products are facilitated.

The invention discloses a product quality sampling method based on deep learning, and the method comprises the steps: representing the adaptation degree of a worker and a production line, and the adaptation degree of a raw material or an intermediate product and the production line through a target coefficient; the target coefficient is applied to the subsequent sampling step, so that the adaptation degree can play a certain role in guiding the formulation, modification and execution of the sampling strategy, the sampling result can be matched with the order scale and the artificial error through the technical means, and then the spot check can be executed foreseeably in the generation link. Furthermore, the application also adopts an LSTM prediction model, and the LSTM prediction model is obtained based on historical data training of the production line, so that the LSTM prediction model can master the equipment condition of the production line and the adaptation condition of the equipment and the raw materials, and the sampling result can be matched with the equipment factors and the raw material factors through the technical means. Therefore, the obtained sampling strategy is more comprehensive and is more matched with the actual situation.

The invention discloses core-shell type hydrophobic modified activated carbon and a preparation method thereof. The obtained hydrophobic activated carbon is composed of a core (activated carbon) and a shell (hydrophobic breathable silicon dioxide shell). The method comprises the following three steps: (1) constructing a silicon dioxide shell layer: dispersing pretreated activated carbon in a solvent, adding tetraethyl orthosilicate into the solvent, firstly adjusting the pH value of a reaction solution to be weakly acidic, stirring for 20-30 minutes under a certain stirring condition, then adjusting the pH value of the reaction solution to be weakly alkaline, continuously stirring for 0.5-1 hour to obtain a suspension A, and carrying out centrifugal drying treatment on the suspension A to obtain the silicon dioxide shell layer; an intermediate product coated with a hydrophilic silicon dioxide shell layer is obtained; (2) hydrophobic group grafting: dispersing the obtained intermediate product in a solvent, adding siloxane with different alkyl chain lengths into the solvent, fully stirring to obtain a suspension B, and performing centrifugal drying treatment to obtain hydrophobic modified activated carbon; cleaning and drying the hydrophobic modified activated carbon; and (3) adding a hydrophilic group: grafting the hydrophilic group on the silicon dioxide shell layer in an acid environment.

The invention discloses a manufacturing method of a UNS N06690 alloy seamless heat exchange tube, which belongs to the technical field of material processing, and comprises the following steps of: (1) performing peeling, PT inspection, shearing, centering, grinding, heating, perforating, water cooling and inspection on a round steel material; (2) carrying out acid pickling on the hot-punched blank, and then carrying out incoming material inspection and inner and outer surface grinding; (3) two-pass intermediate product cold rolling is carried out, and after cold rolling, intermediate product deoiling, intermediate product heat treatment, intermediate product straightening, intermediate product pipe cutting, acid pickling, intermediate product grinding and repairing and intermediate product inspection are carried out; (4) carrying out finished product cold rolling; (5) deoiling a finished product; (6) performing heat treatment on a finished product; (7) straightening a finished product; (8) carrying out finished product ultrasonic eddy current, water pressure and pipe cutting, sampling during pipe cutting, and carrying out physical and chemical tests; and (9) the obtained steel pipe is subjected to the procedures of finished product surface inspection, size inspection, cleaning, mark spraying and finishing and finally packaged and warehoused, and the product produced through the method is high in one-time inspection qualification rate and high in yield.

The invention discloses a preparation method of FeCoNiMnAl series high-entropy alloy powder with wave absorbing performance, which comprises the following steps: (1) uniformly mixing iron powder, cobalt powder, nickel powder, manganese powder and aluminum powder to obtain alloy raw material powder; (2) adding the alloy raw material powder, absolute ethyl alcohol and grinding balls into a ball milling tank, and carrying out high and low rotating speed alternate ball milling under the protection of inert gas; (3) after ball milling is finished, the alloy raw material powder obtained after ball milling is subjected to vacuum drying, grinding and smashing, and an intermediate product A is obtained; (4) adding a sodium hydroxide solution into the intermediate product A, and performing corrosion modification by adopting a water bath heating method; after the water bath is finished, washing a solid product obtained by solid-liquid separation to be neutral to obtain an intermediate product B; and (5) carrying out vacuum drying on the intermediate product B, and grinding and crushing. The FeCoNiMnAl series high-entropy alloy powder prepared by the preparation method disclosed by the invention has relatively excellent wave absorbing performance under the condition that the thickness is relatively small.

The invention discloses a system and a method for producing biological aviation kerosene by using waste oil and belongs to the technical field of biological aviation kerosene preparation. The method comprises the following steps: (1) the waste grease and a magnetic catalyst loaded with ionic liquid are mixed and enter a suspended bed pre-hydrogenation reactor for reaction to obtain a pre-hydrogenation product, a carrier in the magnetic catalyst loaded with the ionic liquid is Fe3O4 magnetic particles coated with a silicon dioxide layer, and the ionic liquid is molybdenum-based ionic liquid; (2) separating the pre-hydrogenation product to obtain a primary hydrogenation product; (3) performing hydrogenation upgrading on the primary hydrogenation product to obtain an upgraded intermediate product; (4) separating the upgrading intermediate product to obtain a secondary hydrogenation upgrading product; and (5) carrying out hydroisomerization reaction on the secondary hydrogenation upgrading product to obtain the biological aviation kerosene. According to the method, the magnetic catalyst loaded with the ionic liquid is adopted to catalyze the waste grease, recycling can be achieved under the action of a magnetic field, the catalytic stability is high, and industrial stable production can be achieved without supplementing the catalyst.

The invention discloses a method for preparing a graded porous nickel electrode by step-by-step dealloying and application thereof, and the method comprises the following steps: spraying a nickel-aluminum material on a nickel-based substrate to obtain a first intermediate product; performing heat treatment on the first intermediate product to obtain a second intermediate product; the second intermediate product is sequentially placed in alkali liquor with different concentrations for step-by-step activation, and the graded porous nickel electrode is obtained; in the step of step-by-step activation, the concentration of the alkali liquor is gradually reduced, and the activation temperature is gradually reduced. According to the graded porous nickel electrode, the efficient mass transfer rate and catalytic efficiency are guaranteed; the bonding strength between the coating and the substrate is high, the interlayer structure is stable, the mechanical property and stability are good, and the service life is long; and the hierarchical porous structure can be constructed only through step-by-step activation, so that the preparation process is remarkably simplified.

The invention discloses a novel polyester intermediate product as well as a preparation method and application thereof, and the novel polyester intermediate product is O, O '-(ethane-1, 2-diacyl) bis (2-hydroxyethyl) diterephthalate (BHET-MHET). Experiments prove that BHET-MHET is taken as a substrate and can be widely applied to activity detection and screening of polyester depolymerases by detecting OD600nm. The polyester degrading enzyme can be a polyester depolymerases LCC, a polyester depolymerases TfCut2 or a polyester depolymerases PETase. The method for screening the polyester depolymerases by using BHET-MHET has the characteristics of high accuracy and high reliability. The method has an important application value.

The invention relates to the technical field of wire and cable preparation, and discloses a flame-retardant anti-aging wire and cable and a preparation method thereof. The preparation method of the flame-retardant anti-aging wire and cable comprises the following steps: reacting a ketal compound with thionyl chloride, and then reacting with ricinoleic acid ester to obtain an intermediate product; reacting the thiazolopyridyl compound with the intermediate product to obtain a bio-based plasticizer; modifying the bio-based plasticizer to obtain a modified bio-based plasticizer; mixing polyvinyl chloride resin, linear low-density polyethylene, an ethylene-octylene copolymer, a flame-retardant anti-aging agent, a modified bio-based plasticizer and other components to obtain a sheath layer mixed master batch, and extruding to obtain a sheath layer; and after coating the conductor with the sheath layer, cooling, rolling and packaging to obtain the flame-retardant anti-aging wire and cable. The flame-retardant anti-aging wire and cable sheath layer has good flame retardance, aging resistance and mechanical property, and plays a good role in protecting wires and cables.

The invention belongs to the field of battery materials, and discloses a ferric sodium pyrophosphate material as well as a preparation method and application thereof. The preparation method of the ferric sodium pyrophosphate comprises the following steps: step 1, mixing a phosphorus source, an iron source, a sodium source, a biomass carbon source and an alcohol additive, and uniformly stirring to obtain a mixed material A; step 2, carrying out hydrothermal reaction on the mixed material A, and then centrifuging and drying to obtain an intermediate product B; and 3, roasting the intermediate product C in a protective atmosphere to obtain the carbon-coated ferric sodium pyrophosphate. A three-dimensional conductive network is formed after the biomass carbon source and the NFPP are compounded, the interface resistance is reduced, the charge transfer efficiency is improved, and after the biomass carbon source is carbonized, biomass carbon with mechanical supporting and buffering effects can relieve volume expansion of the NFPP in the charge-discharge or reaction process and inhibit material pulverization, so that the cycling stability is improved.

The invention relates to a migration-resistant anti-aging agent as well as a preparation method and application thereof, the method comprises the following steps: taking a substance as shown in a formula I and nitric acid as reactants, condensing H in an amino para-position group-CH-H and nitryl to obtain a nitrated substance, and carrying out hydrogenation reduction on the nitryl of the nitrated substance under the action of a catalyst to obtain an intermediate product. And carrying out hydrogenation on the intermediate product and ketone under the action of a catalyst to obtain a final product, namely the migration-resistant anti-aging agent II. The raw materials are convenient to purchase and transport, the product yield is high, the cost is low, the operation is simple, and the environmental pollution is small, so that the method has an industrial development prospect. # imgabs0 #

The invention relates to a reworking method of a heterojunction solar cell. The reworking method comprises the following steps that defective products are pretreated, and dirt on the surfaces of the defective products is removed; forming a P-type doping layer on the surface, with the N-type doping layer, of the pre-treated defective product to obtain an intermediate product; and carrying out film removal treatment on the intermediate product, and removing a film layer on the surface of the intermediate product to obtain the silicon substrate. In the reworking method, the P-type doping layer is formed on the N surface of the defective product, and the P-type doping layer can play a role in protecting the N-type doping layer. In the subsequent film removing treatment, the excessive corrosion of the N surface can be reduced, so that the corrosion degrees of the P surface and the N surface in the film removing process can be close, the risk of excessive corrosion of the silicon substrate can be reduced on the basis of removing a bad film layer, the silicon substrate can be kept at a proper thickness for reutilization, and the reworking yield of the silicon substrate is further improved.

The invention belongs to the technical field of gene engineering, and particularly relates to an LgtA mutant and application thereof in production of human milk oligosaccharide. According to the present invention, a gene editing technology is adopted to mutate a key enzyme beta-1, 3-N-acetyl glucosamine transferase for synthesizing an intermediate product LNT II so as to obtain a mutant having at least one of R13H mutation, L24M mutation and R205C mutation on the basis of a wild type LgtA represented by SEQ ID NO.1; further, the mutant is applied to the construction process of production plasmids of the LNTII, the LNnT and the LNT, and the yield of the LNTII, the LNnT and the LNT is further increased.

The invention relates to a metallized microbubble and a preparation method thereof, a construction method of a multifunctional composite probe, and a rapid bacterium capturing and sterilizing method, and belongs to the technical field of functional material preparation. The method aims at solving the technical problems that in the prior art, a metal coating on the surface of the hollow glass microbubble is not uniform, combination is not firm, and stability is poor. According to the technical scheme, the method is characterized by comprising the following steps: mixing surface-activated hollow glass microbubbles with a polyethyleneimine solution for reaction, and washing and drying to obtain polyethyleneimine-coated hollow glass microbubbles; then reacting with a single-stranded DNA buffer solution to obtain an intermediate product loaded with DNA; then introducing a silver nitrate solution to load silver ions on the surface of the compound; and finally, reducing through a sodium borohydride solution to prepare the metallized microbubbles. The metalized microbubbles prepared by the method can be used for constructing a multifunctional composite probe to realize efficient capture and synergistic antibiosis of targets such as bacteria.