410 results about "Infection rate" patented technology

Disclosed are an artificial dura mater and manufacturing method thereof. The artificial dura mater includes electrospun layers prepared by electrostatic spinning, at least one of which is a hydrophobic electrospun layer. Further, above the hydrophobic electrospun layer, there can be at least one hydrophilic electrospun layer. A transition layer can be further included between the hydrophobic and the hydrophilic electrospun layers. Additionally, cytokines and/or medicines can be affixed to either or both of the hydrophobic and the hydrophilic electrospun layers, by way of bio-printing. The disclosed artificial dura mater shows good biocompatibility, enhances dural tissue regeneration, achieves excellent repairing effects, prevents adhesion, allows complete absorption, has good mechanical properties, ensures low infection rates, and can be loaded with therapeutic agents.

The invention provides a total artificial method for cultivating the cordyceps sinensis, and belongs to the field of the total artificial cultivation of the cordyceps sinensis. The method comprises the steps of: a. preparing a Chinese hirsutella suspension; b. acquiring, propagating and raising the host insect; c. infecting: taking the hepialus larva obtained by the step b, and soaking the suspension of the step a by a needle-shaped apparatus with the diameter which is less than 0.2mm at one end to prick the hepialus larva to complete the infection; and d. continuously raising. After the method is used, the improper mortality of the chrysalis can be reduced, and the eclosion rate of the hepialus is improved; the mating rate of the hepialus can be improved; and the infection rate of the Chinese hirsutell to the host hepialus larvae can be greatly improved, and the total artificial industrial production of the cordyceps sinensis can be realized.

The invention relate to the field of medical detection, particularly relates to a micro-fluid cytometer and a manufacture method thereof, and solves the technical problems that the traditional cytometer at present is huge in size, high in price and particularly high in mutual infection rate. The micro-fluid cytometer mainly comprises a micro-fluid chip and a specially-made external detection component, wherein a sample channel, a focusing detection channel and a sheath flow liquid storage tank are arranged on the micro-fluid chip; a sample preprocessing region and a buffer region for carrying out concentrating processing on to-be-detected cell sap are integrated in the sample channel; and a micro-column array is arranged in the sample preprocessing region. The manufacture method of the micro-fluid cytometer comprises the following steps of: manufacturing micro-fluid channels, and manufacturing and bonding a cover plate of the micro-fluid chip. According to the micro-fluid cytometer and the manufacture method thereof, the products are integrally microminiaturized, the cost is low, the concentrating processing on the to-be-detected cell sap in the chip can be realized, the micro-fluid cytometer is disposable, each sample is measured at one time, and the problem of interaction effects among the samples is completely avoided.

The invention provides a novel biological-material complex patch which is of a laminated structure comprising a basic layer and an additional layer. The novel biological-material complex patch is characterized in that the basic layer is an patch made from an artificial synthetic material; the additional layer is a biological patch made from an extracellular matrix/acellular tissue matrix material, or a synthetic-material patch made from an artificial synthetic biological material or the artificial synthetic biological material and an artificial synthetic degradable material; and the basic layer and the additional layer are integrated through a surgical suture or a medical adhesive or other methods. The biological-material complex patch has the advantages of easiness for peripheral tissue growth and angiogenesis, adhesion prevention, degradability, good infection resistance and the like of the biological material and the advantages of easiness for tissue growth by of a big mesh, excellent infection resistance, difficulty for generating hydrops, non-degradability, high late mechanical strength and durability of the artificial-synthetic-material patch, adopts a simple production method, is more effective after being applied in clinic, and ensures recent and late relapse and infection rates to be lower.

A medical degradable magnesium alloy bone-fixing screw relates to bone-fixing screws and solves the problem that the existing bone-fixing screws are non-degradable. The medical degradable magnesium alloy bone-fixing screw is made of degradable magnesium alloy. The medical degradable magnesium alloy bone-fixing screw is fine in biocompatibility, has few tissue reaction and fine metal mechanical performance, can be absorbed in vivo without one more operation for removing the screws, relieves wound, reduces infection rate, saves cost, and has no metal stimulation, and degrading of the medical degradable magnesium alloy bone-fixing screw avoids metal stress shielding and reduces risks of osteoporosis after operation. The medical degradable magnesium alloy bone-fixing screw can be completely biodegraded to become harmless micromolecule after in vivo planting and the micromolecule can be discharged in vitro or absorbed in vivo, and accordingly rejection reaction of human bodies to implant is reduced and better curative effect is achieved.

The invention relates to infectious disease epidemic situation prediction and belongs to the field of epidemic disease spreading and control. According to an infectious disease with an immune period, the invention provides an epidemic situation prediction method for the infectious disease having the immune period and influenced by seasons. Compared with the existing models, the method comprises the following steps: considering the influence of the immune period, setting up an epidemic situation prediction dynamic model for the infectious disease having the immune period and influenced by the seasons according to the change rate of relative time of susceptible persons, persons in an incubation period, infected persons and recovered persons, substituting an infection rate, the immune period, the incubation period and the like to obtain the change rules relative to time of all kinds of crowds, and completing the epidemic situation prediction of the communicable diseases. The method has higher prediction accuracy, and provides more reliable evidences for the epidemic situation control.

The invention discloses a negative pressure isolation stretcher comprising a soft cushion body, a soft isolation cover and a plurality of elastic support bars. The soft cushion body is a flat closed bag body and internally filled with granular objects; the bag body is provided with an air tap; the circumference of the soft isolation cover and the circumference of the soft cushion body are connected into a whole and the soft isolation cover is supported by the elastic support bars so that a cabin body is formed; the cover surface of the soft isolation cover is provided with an entrance of the cabin body; the entrance of the cabin body is closed by a zipper; the cover surface of the soft isolation cover is provided with a plurality of operating openings with sealing covers; one end surface of the soft isolation cover is provided with an air inlet, and the other end surface is provided with an air outlet; the air outlet is provided with an exhaust filter; and the exhaust filter is connected with an exhaust fan through an exhaust pipe. The negative pressure isolation stretcher is mainly used for isolation conveyance of patients with respiratory tract infectious diseases and can prevent pathogens from spreading and reduce the infection rate of medical staff. The invention is a soft foldable stretcher, usually occupies small space, is convenient for carrying and has the advantages of simple and convenient installation and operation and light weight.

The invention discloses a method for fast preparing an anti-infection dressing. The method includes the steps of firstly, preparing functional coating liquid; secondly, soaking non-woven fabric, fabric or a thin film with the functional coating liquid or spraying the functional coating liquid to the non-woven fabric, the fabric or the thin film, and drying; thirdly, washing the dried medical non-woven fabric, fabric or thin film soaked or sprayed with the functional coating liquid, and drying to obtain the anti-infection dressing. The anti-infection dressing can overcome the defects in the prior art and is lasting in anti-infection function and good in biocompatibility, the coating does not fall off easily, and the anti-infection rate of the anti-infection dressing reaches more than 90%.

The invention discloses a preparation of compound rice dedicated bio-fertilizer based on arbuscular mycorrhizal fungi and an application thereof, and relates to the preparation and the application of bio-fertilizer. The compound rice dedicated bio-fertilizer aims to solve the problem that rice can not be infected by the arbuscular mycorrhizal fungi under the aquatic condition at present and is difficult to effectively form mutualistic symbiosis, and therefore the rice can not obtain mineral nutrition from an arbuscular mycorrhizal fungi-crop symbiotic system. The method comprises the following steps of: preparing a colonized reinforcer; pre-processing arbuscular mycorrhizal fungi fungicide; and evenly mixing the processed arbuscular mycorrhizal fungi fungicide, rice shoots growth promoterand the colonized reinforce. The compound rice dedicated bio-fertilizer can be prepared into a seedling bed, culturing the mycorrhiza seedling and managing a rice field. According to the compound rice dedicated bio-fertilizer disclosed by the invention, the arbuscular mycorrhizal fungi-crop symbiotic system with a high infection rate and stable performance can be built in the seedling stage of the rice, and the symbiotic system can successfully live through the transplanted field flooding environment. The biological bactericide activity loss problem brought by flooding intimidation can be effectively solved, mineral nutrition is continuously provided for the rice, the growth situation of the rice is improved, the fertilizer application amount in the field is reduced, and the rice production cost can be effectively lowered.

The invention relates to the technical field of the breeding of live hogs, and particularly relates to antiviral live-hog feed, which is prepared from 90 percent of basal feed, 6 percent of Chinese herbal medicinal additive and 4 percent of growth promoter, wherein the basal feed is prepared from corn, peanut meal, bean meal, rice bran and wheat bran; the Chinese herbal medicinal additive is prepared from herba houttuyniae, pericarpium citri reticulatae, herba taraxaci, radix bupleuri, fructus forsythiae, radix astragali seu hedysari, flos lonicerae, caulis lonicerae japonicae, radix isatidis and the like; the growth promoter is prepared from shrimp shell powder, bone powder, fish meal, folic acid, choline, calcium lactate and the like. The antiviral live-hog feed is complete and balanced in nutrition; the immunity of a hog can be enhanced; the infection rate of a virus is reduced; the use of an antibiotic and the residue of a medicine are reduced. Through the compatibility of multiple traditional Chinese medicinal materials, the antiviral live-hog feed has the effects of clearing away heat and toxic materials and being obviously antiviral, has obvious inhibiting effects on all of epidemic diarrhea, a porcine reproductive and respiratory syndrome, influenza viral pneumonia and the like, and can be used for replacing a conventional antibiotic; the residue of the medicine is reduced; the economic benefit of a breeder is improved.

The invention provides a grape multi-resistance rootstock hard branch grafting nutrition bag seedling raising method in arid desert areas. The grape multi-resistance rootstock hard branch grafting nutrition bag seedling raising method in the arid desert areas adopts rootstocks which are selected from 5BB and /or S 04, and adopts following steps of gathering of scions, selection of rootstocks, pavement of double layers of electric heating hotbeds, grafting of the rootstocks and the scions, placement of cuttages on the electric heating hotbeds, placement of the cuttages in nutrition bags, and management after cutting of the rootstocks. A plurality of selection tests of rootstock varieties come to a discovery that after rootstocks S04 and rootstocks 5BB are grafted with local cladus, nursery stocks are good in resistances, low in infection rate of diseases and insect pests, strong in saline-alkaline resistance, high in survival rate, and rather good in local adaptability. Greenhouses are further used for carrying out large-scale fast breeding of grape hard branch grafting seedlings, breeding stage is short, and grafting, breeding and planting of the seedlings can be achieved in the same year. The grape multi-resistance rootstock hard branch grafting nutrition bag seedling raising method in the arid desert areas is particularly suitable for arid and saline-alkaline desertification areas, simple and practical in technology, and easy to popularize.

The invention relates to the technical field of wild boar breeding, in particular to a breeding method for ecological wild boars. The breeding method for ecological wild boars includes the steps of stocking field selecting; pigpen treating, wherein fermentation beds are arranged at the bottoms of manure leaking plates, and are laid with filler mixed through straw, wheat straw and the like and multiple kinds of zymophyte; feeding and managing, wherein except for the rainy day or the high wind weather, wild boars are grazed in the daytime, turned back to pigpens in the evening and fed once with health care feed in the morning and once in the evening; disease preventing, wherein traditional-Chinese-medicine antivirus medicine baits are fed every 15 days to 20 days. By means of the breeding method for ecological wild boars, antibiotic using and medicine residues can be reduced, and ecological wild boars with the good meat quality and the good taste are provided. As grazing is carried out in the daytime, and the health care feed is supplemented in the morning and evening, growth is promoted; meanwhile, the exercise amount of wild boars is reinforced, the meat quality is higher, and the taste is good. The wild boars are fed the health care feed and the antivirus medicine baits, the compatibility of multiple traditional-Chinese-medicine materials is achieved, and the immunity of wild boars can be enhanced, and the infection rate of viruses is reduced.

The invention relates to a method for the horizontal transfection of bemisia tabaci of the exogenous endosymbiotic bacteria, which pertains to the field of agricultural biotechnology. The preparation method includes: the purification of the exogenous endosymbiotic bacteria Wolbachia, the collection and fixation of a bemisia tabaci receptor, the horizontal transfection of the exogenous endosymbiotic bacteria Wolbachia to the bemisia tabaci receptor, the collection and fixation of an injection individual and the detection of the endosymbiotic bacteria. The invention is simple and quick, which can successfully transfect the exogenous endosymbiotic bacteria to a bemisia tabaci individual, and a bemisia tabaci offspring has higher infection rate.

The invention provides a large-scale mappia pittosporoides direct seeding and seedling method. The method includes a series of steps such as nursery site requirements for mappia pittosporoides direct seeding and seedling, greenhouse erection and compartment division, seed pretreatment, seeding, management before germination, preliminary management after germination, seedling transplantation, field management after transplantation, etc. Seedlings obtained through the method achieve a low infection rate, high robustness, a high transplantation survival rate, as well as strong rootstocks; the operation is simple and convenient; the method is applicable for propagation technologies for mappia pittosporoides field seedling, and overcomes the limitations of the conventional seedling technologies.

The invention provides a microbial feed additive and a preparation method thereof. The main processes are as follows: respectively culturing bacillus subtilis and bacillus licheniformis for 17-24 hours at 35-37 DEG C by using liquid media; mixing the bacillus subtilis and bacillus licheniformis with solid media which are sterilized and contain bran and grape seed extracts uniformly, and inoculating the bacillus subtilis and bacillus licheniformis into the solid media; then carrying out short solid fermentation (1-3 hours) at 35-37 DEG C; by utilizing the characteristic that bacillus is easy to generate spores when the environment changes, enabling the metabolically active bacterium to rapidly ripen and generate spores after short solid fermentation; and then grinding and packaging to prepare the microbial feed additive. The effective bacterial count of the microbial feed additive is not less than 1*108CFU/g. 0.1% of microbial feed additive is added to the feed for livestock and poultry to be used for reducing the rate of livestock and poultry diarrhea, reducing the infection rate, improving the feed intake and improving the daily gain.

The present invention provides an insect infection method for use in the production of a protein with a baculovirus expression vector in the insect, the method comprising the steps of:

• • (g) providing a plurality of insect larvae or pupae;
  • (h) providing a solution comprising a wild type baculovirus or a baculovirus expression vector having a desired gene encoding a protein;
  • (i) stressing the insect larvae or pupae;
  • (j) soaking the insect larvae or pupae in the solution for an appropriate time so that they are infected with the wild type baculovirus or the baculovirus expression vector; and
  • (k) incubating the infected larvae or pupae for production of the protein; and
  • (l) harvesting the protein.

The method can treat a great quantity of larvae simultaneously, achieve batch infection of larvae or pupae, save manpower and effectively infect larvae or pupae at a high infection rate.

The present invention relates to a nutrient fluid formula for the mycorhiza floating seedling raising of the cured tobacco and an application method of the formula, which comprises three formulas of the formula at the sowing stage, the formula 30 days after the emergence of the seedling and the formula 45 days after the emergence of the seedling. Using the present invention to inoculate the mycorrhizal fungi for the tobacco seedling, during the transplanting, the mycorrhizal infection rate of one tobacco seedling is more than or equal to 20 percent and the mycorrhizal rooting rate of the tobacco seedling is more than or equal to 90 percent. The application method of the nutrient fluid of the present invention not only favors the infection of the mycorhizal fungi for the tobacco seedling, but also favors the application period and application quantity of the nutrient fluid being applicable to the nutrition requirements of the tobacco seedling; moreover, the seedling bed is free from salt harm and disease harm. At the same time, the concentration of the nutrient fluid of the present invention is only 50 percent to 60 percent of the concentration of the prior nutrient fluid that is used in the present production; the total consumption quantity of the fertilizer is dropped by 40 percent to 50 percent, thereby saving the resource and reducing the environmental pollution.

The invention provides a surface-modified metal bone implant material and a preparation method and application thereof. The surface-modified metal bone implant material comprises a porous metal bone implant base and a zinc oxide deposit layer; the zinc oxide deposit layer is positioned on the surface of the porous metal bone implant base; the zinc oxide deposit layer can significantly inhibit andeliminate Escherichia coli, staphylococcus and the like; antibacterial performance of the metal bone implant material is greatly improved; the zinc oxide deposit layer is significant to reducing the infection rate of metal bone implant materials.

The invention discloses isaria javanica for preventing and treating hyphantria cunea,wherein the isaria javanica is classified and named as isaria javanica BE01, which is preserved in China General Microbiological Culture Collection Center in No.3, No.1 Yard, West Beichen Road, Chaoyang District, Beijing on November 28, 2016 with preservation number of CGMCC No.13192. The isaria javanica BE01 strain provided by the invention is separated from stiff hyphantria cunea larvae. Tests prove that the isaria javanica, under a spore concentration higher than 1.0*10<4> spores/mL, has relatively good virulence on the hyphantria cunea at different ages, and an infection rate exceeds 53.33%, and the infection rate of the isaria javanica, under a spore concentration of 1.0*10<8> spores/mL, exceeds 73.33%; therefore, the isaria javanica is capable of effectively preventing and treating the hyphantria cunea.

The invention relates to a sanitary and hygeian pedal type public lavatory door for hospitals. The sanitary and hygeian pedal type public lavatory door is composed of a mobile door, a foot pedal mechanism, a connecting column, an outer steel wire rope, a fixed door, a double rocker door opening and closing mechanism, a connecting support fixing column, a stretchable connecting support, a bolt mechanism and an inner steel wire rope. The foot pedal mechanism, the double rocker door opening and closing mechanism and the bolt mechanism are adopted, opening and closing of the lavatory door are controlled with the foot, and locking and opening of the lavatory door are controlled by pedaling a bolt plate with the foot; and the sanitary and hygeian pedal type public lavatory door has the beneficial effects that the structure is simple, operation is convenient, direct contact between the hand and the lavatory door is avoided, the germ infection rate is reduced, safety and sanitation are betterachieved, and the safety and sanitation is suitable for use in public lavatories in the hospitals.

The invention discloses a plant growing regulator compound essentially prepared by the following components according to the weight portion of 0.1 to 60 portions of uniconazole and 0.1 to 60 portions of one or two of caproic acid diethyl amidocyanogen ethanol ester and compound sodium nitrophenolate. The invention can promote the absorption effect of plant vanes and improve the operating factor of pesticide. After being sprayed in a full-bloom stage, the pod number effect and the particle number effect for soybean and peanut is improved; the rate of unfilled pod is remarkably reduced; the grain is fully filled and the output is improved by 12 to 20 percent; the lodging resistance capacity is enhanced. After the pesticide is used, the qualities of the peanut and soybean are improved; more particularly, the Aspergillus flavus infection rate of the peanut is reduced remarkably; the economic value is improved remarkably; the absorption rate of the pesticide is improved; the effect using mount of the uniconazole is reduced by 15 to 30 percent under the same vigorous growing control effect; the pesticide processing and using effects are effectively reduced. The invention can be broadly applied to various plants and crops and has the advantages of simple technique and convenient use.

The invention discloses ZIKV(zika virus)-NS1 protein and application of the ZIKV-NS1 protein to preparation of ZIKV propagation blocking vaccine. The invention provides protein which is named as the ZIKV-NS1 protein; the ZIKV-NS1 protein is protein formed by amino acid sequences shown as sequence 1 in a sequence table. The invention also provides application of the ZIKV-NS1 protein. The application comprises the following steps (e1) or (e2): (e1) ZIKV vaccine preparation; (e2) ZIKV propagation blocking vaccine preparation. The vaccine provided by the invention can block the propagation of ZIKVthrough mosquitos in nature; the infection rate of mosquitos in natural environment is reduced, so that healthy people groups are protected from being infected by ZIKV; the sudden outbreak of the ZIKV is prevented.