89results about How to "Strong regenerative" patented technology

The invention relates to a mesenchymal stem cell membrane, and concretely relates to a vitamin C induced mesenchymal stem cell membrane and a preparation method thereof. The preparation method which is simple, fast, and harmless has very important and far-reaching meanings on the tissue regeneration of the mesenchymal stem cell membrane in application fields of the cell substitution treatment and regeneration medical science, tissue engineering science and the like. The vitamin C induced mesenchymal stem cell membrane has a wide application prospect with continuous exploration and research and further advanced understanding of the mesenchymal stem cell membrane.

The invention is concerned with the application method that uses the straw and the lawn plant to recover the housing refuse with heavy metal, it is: the 10 to 80 of housing refuse compost mix with 1 to 10 of straw to make the lawn plant culture substrate, seeds on the lawn plant culture substrate and give water every day, uses the ICP-AES method to test the heavy metal content after distilling by the lawn plant from cradle the upside of the lawn plant; the result shows with the paddy straw, the recover actuation of the Cr, Ni and Cd by the secular-grow ryegrass, and the recover actuation of the Cr and Ni by festuca arundinacea are big foreground.

The invention relates to a high-cadmium-adsorption filamentous fungus Paecilomyces lilacinus XLA, and a preparation method and an application thereof. The preparation method comprises the following steps: 1, weighing a pot experiment soil sample used for heavy metal restoration and having a content of heavy metal cadmium of 50mg/Kg, adding to sterile water with glass beads, oscillating on a constant temperature shaking table, allowing an obtained solution to stand, taking an obtained supernatant, and carrying out serial dilution; 2, coating a Martin flat containing 60mM of cadmium with different dilution rates of dilutions, allowing the obtained flat to stand for a moment, inverting on a constant temperature culturing box, and culturing; 3, carrying out streaking purification of single colonies growing on the flat, coating the Martin flat with the obtained single colonies, and culturing; 4, carrying out separating screening to obtain the Paecilomyces lilacinus XLA stably resisting cadmium, and preserving on a PDA inclined plane for later use. The Paecilomyces lilacinus XLA is preserved and has a preservation number of CCTCC NO:M2012135. Viable and non-viable organism of the XLA can efficiently adsorb and remove the heavy metal cadmium in heavy metal sewage, so the XLA has the advantages of low cost and simple technology, and has an efficient restoration potential of heavy metal polluted soil and water.

The invention discloses a method for treating mercury-containing wastewater by using modified blue-green algae. The method is characterized by comprising the following steps: (1) performing acidification modification treatment on blue-green algae, thus obtaining modified blue-green algae; (2) treating the wastewater by employing the modified blue-green algae; (3) detecting the supernatant fluid of the wastewater, and discharging the wastewater after qualification; and (4) recovering the blue-green algae, namely filtering the used modified blue-green algae, desorbing the blue-green algae in a desorbing agent for 1 hour, and filtering and refrigerating the modified blue-green algae. The modified blue-green algae raw materials used in the method come from eutrophic lakes and are easily obtained, mass propagation or dead algae in the lakes are reasonably utilized, the eutrophication phenomena can be reduced, and the treatment difficulty of the lake eutrophication is lightened; and moreover, the method for adsorbing and removing the mercury-containing industrial wastewater by utilizing the modified blue-green algae is simple in process and convenient to use.

The invention relates to a method for extracting and purifying steviol glycoside from stevia rebaudiana aqueous extract by virtue of a series resin column method and belongs to the technical field of food separation. According to the method, dried leaves of stevia rebaudiana are used as raw materials, and the method comprises the following steps of: crushing the dried leaves of stevia rebaudiana, and adding deionized water into the crushed dried leaves to extract the stevia rebaudiana aqueous extract; filtering to obtain a clear water solution which is an overlying column liquid; removing pigment and soluble impurities of the overlying column liquid by virtue of a macroporous anion exchange resin column, and then directly using a macroporous absorption resin column connected with the macroporous anion exchange resin column to absorb the target product steviol glycoside; after absorption, desorbing the steviol glycoside by using an ethanol water solution, and removing ethanol in the desorption solution to obtain the steviol glycoside water solution with the steviol glycoside purity of more than 92%. The method has the advantages of being short in process flow, simple and convenient in operation and high in steviol glycoside yield, does not need chemical substances such as a flocculating agent in the purification process, and can be used for greatly reducing the emission of three wastes.

The invention relates to a preparation method for a renewable fibre ball filter material for oil-containing sewage treatment. A common fibre ball filter material is subjected to surface modification under the condition of high-pressure steam by adopting ammonia gas as a modifying agent; and the adsorption property of the surface of a fibre ball is changed by changing the microstructure of the surface of a fibre filament. The preparation method is scientific and reasonable in design; the modified fibre ball filter material has good regenerating capacity when oil-containing sewage is treated; after oil is absorbed, the oil on the surface can be desorbed by back washing by using clean water; and the preparation method has the characteristics that the process is simple, raw materials are easily obtained, and a modifying effect is good.

The invention provides a photocatalytic composite material with p-n heterojunction, and belongs to the field of organic pollutant treatment. The narrow-band-gap photocatalytic composite material withp-n heterojunction disclosed by the invention improves deficiency of a single catalyst, has a small band gap energy (1.87 eV), has a large absorption threshold on visible light, and has enhanced lightutilization efficiency. The p-n heterojunction caused by bending of the energy band increases the hole transfer ability, inhibits electron-hole recombination, improves the separation efficiency of photogenerated electrons and holes, prolongs the carrier lifetime and enhances the catalytic activity. Under visible light, the photocatalytic composite material has good degradation effects on organicpollutants in water, such as MO, MG, BPA, tetracycline hydrochloride, etc. At the same time, the narrow-band-gap photocatalytic composite material with p-n heterojunction disclosed by the invention can settle in water through standing, so that the narrow-band-gap photocatalytic composite material can be separated from an aqueous solution, and thus the narrow-band-gap photocatalytic composite material is beneficial to recovery and reuse of materials, has good regenerative capacity and can be recycled.

The invention belongs to the technical field of environmental functional materials, and particularly relates to a preparation method of a super-hydrophilic/underwater super-oleophobic visible-light-driven anti-fouling membrane. The preparation method specifically comprises the following steps: firstly, dispersing N, N-dimethylformamide in isopropanol; adding tetrabutyl titanate; stirring and thenadding cobalt chloride hexahydrate; stirring to obtain a mixed solution; then, immersing carbon cloth in the mixed solution; transferring the mixed solution to a polytetrafluoroethylene reaction kettle for heating reaction; naturally cooling to room temperature after the reaction is finished; and washing and drying to obtain the super-hydrophilic/underwater super-oleophobic visible-light-driven anti-fouling membrane. The super-hydrophilic/underwater super-oleophobic visible-light-driven anti-fouling membrane prepared in the invention has high separation efficiency which is up to 99% or more, stable performance, strong fouling resistance and excellent regeneration performance.

The invention provides a doped boron nitride capable of removing heavy metal in high-temperature flue gas. The doped boron nitride comprises, by molar ratio, 0.1-1 mol of a doping substance, 1-5 mol of melamine and 1-5 mol of boric acid, wherein the raw materials of the melamine and boric acid are required for preparation of boron nitride. A preparation method of the doped boron nitride is also provided. The method includes the step of introducing the doping substance during preparation of a first-step precursor on the basis of preparation of the porous boron nitride based on a two-step approach to prepare a porous boron nitride material having a high specific surface area and high porosity, the adsorption selectivity of the heavy metal in the high-temperature flue gas according to different doping substances is different, and the doped boron nitride has higher adsorption capacity for the heavy metal in the high-temperature flue gas than undoped porous boron nitride.

The expansive soil side slope flexible ecological supporting structure comprises a vegetation protection pad, anchor rods, U-shaped nails, a cutting/drainage ditch and slope protection vegetation, the vegetation protection pad is flatly laid on the surface of an expansive soil side slope and is attached to a soil body, and the edge part of the vegetation protection pad is embedded into the bottom of the cutting/drainage ditch; the anchor rods are arranged in the grids of the vegetation protection pad in a rectangular shape; the U-shaped nails are used for fixing the vegetation protection pads between the anchor rods and at the edge of the intercepting/draining ditch; the vegetation protection pad is fixed at the bottom of the interception/drainage ditch, the interception/drainage ditch is manufactured at the upper part according to the designed depth, and the interception/drainage ditch is finally merged into a drainage system and is arranged at the side slope protection outer edge; the slope protection vegetation is densely planted in the three-dimensional grid space of the vegetation protection pad. Surface layer protection of the slow expansive soil side slope can be achieved, the overall stability of the side slope is improved, and the long-term treatment effect is good.

The invention discloses a method for removing heavy metals from high temperature flue gas by using active boron nitride, and belongs to the field of heavy metal adsorption. The method comprises the following steps: preparing a high temperature flue gas adsorbent S-BN adsorbent or a P-BN adsorbent, grinding the prepared high temperature flue gas adsorbent, injecting the ground high temperature flue gas into a flue gas channel, collecting the high temperature flue gas adsorbent in the flue gas channel, repeatedly cleaning the collected high temperature flue gas adsorbent, and filtering and drying the high temperature flue gas adsorbent after the heavy metals in the high temperature flue gas adsorbent are completely washed away in order to realize recycling. The addition of S and P to the active boron nitride increases the chemical adsorption effect based on original physical adsorption, so the adsorption process is effective, the adsorption of the flue gas at a high temperature of 800 DEG C or above is realized, the regeneration performance is strong, and 80% or above of the original adsorption capacity is still kept after cycle use in a laboratory 50 times.

The invention discloses preparation and application of a porous basic lanthanum carbonate phosphate adsorbent. The preparation method comprises the step of carrying out hydrothermal reaction on a mixed solution of lanthanum chloride, urea and sodium citrate at 120-180 DEG C to obtain the adsorbent. The adsorbent disclosed by the invention has relatively high adsorption rate, relatively high adsorption capacity and selectivity on phosphate, and also has good regeneration and cyclic utilization properties.

The present invention discloses a method for high-effectively extracting and separating nano-grade substance from solution and its equipment, belonging to the field of substance extraction and separation technology. Said equipment includes coarse filtration system, fine filtration system, ultrafiltration system, negative pressure suction system, back-flushing system and whole system program controller.

The invention relates to a method for performing natural soil greening on low-lying saline soil by using a soil conditioner containing chitosan. According to the formula of the soil conditioner, the soil conditioner comprises, by weight parts, 32-34 parts of fermented deer manure, 8-10 parts of sorghum straw powder, 5-7 parts of bentonite, 6-8 parts of biogas residue, 3-5 parts of phosphorite powder, 2-4 parts of chitosan, 2-4 parts of fish bone meal, 1-3 parts of peanut cake, 1-3 parts of egg-shell meal, 2-4 parts of soybean meal, 1-3 parts of ammonium bicarbonate, 1-3 parts of ammonium phosphate, 1-3 parts of ammonium chloride ferric sulfate, 1-3 parts of magnesium hydrogen phosphate, 0.5-0.7 part of phenylacetic acid, 1-3 parts of amino acid salt, 0.2-0.4 part of sodium nitrophenolate, 0.2-0.4 part of brassin, 0.2-0.4 part of gibberellin, 0.1-0.3 part of methanohalophilus zhilinae, 0.1-0.3 part of bacillus coagulans, 0.1-0.3 part of saccharomyces cerevisiae, 0.1-0.3 part of azotobacter vinelandii and 0.1-0.3 part of aspergillus oryzae.

The invention discloses a root-burying seedling breeding method of sterculia nobilis. The method comprises the following steps: choosing land and preparing soil, preparing seed roots, carrying out root-burying seedling breeding, disinfecting soil and carrying out seedling management. Through the adoption of the seedling breeding method provided by the invention, the seedling breeding period of thesterculia nobilis can be effectively shortened, excellent genetic genes can be retained, and the method has a high seedling rate when used for cultivation.

The invention provides a method of physically assisting and facilitating plant regeneration of aleurites fordii stem segments with buds. The method includes the following steps of S1, conducting primary culture, wherein after being disinfected, aleurites fordii seed embryos are used for inoculating a primary culture medium untill the seed embryos bud, and the primary culture medium comprises 1/2 of MS and 0.5-1.0 mg/L of GA3, or 1/2 of MS and 0.5 mg/L of IAA; S2, inducing the stem segments with the buds to bud, wherein the stem segments with the buds on the aleurites fordii seed embryos in step 1 are cut off and then used for inoculating an induction medium to be induced to bud, and the induction medium comprises MS, 3 mg/L of 6-BA and 0.1 mg/L of IBA; S3, conducting rooting treatment, wherein the stem segments with new buds are transferred into a rooting medium, and the rooting medium comprises 1/2 of MS, 0.2 mg/L of LIBA, 0.5 g/L of activated carbon and medical stone which accounts for 1/10 of the volume of a container. According to the method of conducting in-vitro rapid propagation on the aleurites fordii stem segments with the buds, by obtaining the stem segments with the budsafter the seed embryos bud aseptically, the bacterium infection rate is greatly reduced, and the budding rate is increased; during activation and proliferation of the stem segments with the buds, thesame culture medium is adopted, and by carrying out light quality control on proliferation indexes, the workload of preparing different culture media is reduced; by adding additives into the rootingmedium, the rooting rate is greatly increased.

The invention discloses a device and method for treating high-fluorine-content water produced by an oil well and a coal-bed gas well. The device is characterized in that the high-fluorine-content water enters a primary fluoride removal device through a water pump A by an automatic pH control liquid adding machine and then simultaneously and equivalently flows into a secondary fluoride removal device A and a secondary fluoride removal device B, namely the two secondary fluoride removal devices are connected in parallel to run; when the content of fluorine in effluent does not reach the standards, the primary fluoride removal device, the secondary fluoride removal device A and the secondary fluoride removal device B are connected in series to run; when the content of the fluorine in the effluent still does not reach the standards, an alumina activation and regeneration unit and the primary fluoride removal device form a circulation loop to regenerate a fluoride removal filler, and meanwhile, the two secondary fluoride removal devices are regenerated; the high-fluorine-content water is discharged after reaching the standards. According to the device and the method disclosed by the invention, two adsorbents, namely activated aluminum oxide and a carbon ceramic composite material are combined during the use, advantages are enhanced, and disadvantages are avoided, so that the fluorine removal effect is effectively improved; the device is simple in structure, automatic in running and convenient to maintain and manage and reduces the running cost.

The invention belongs to the technical field of traditional Chinese medicine preparations, and particularly relates to a Dong medicine for promoting wound healing. The Dong medicine is composed of camellia oil as base oil, plant soot, lithospermum, bletilla striata, ninebark, agrimonia pilosa and other medicinal materials by combining folk medicine experience of the Dong nationality with traditional medicine knowledge, has effects of resisting bacteria, diminishing inflammation, decaying carrion and generating new muscles, and can promote wound healing, shorten treatment cycle and reduce formation of scars.

The present invention relates to a cosmetic composition for preventing skin aging containing, as active ingredients, gold nanoparticles which have been surface-treated with a mixed solution which has one organic acid, selected from gallic acid and protocatechuic acid, and which has isoflavones. The gold nanoparticles (GI-Au NPs, PI-AU NPs) which have been surface-treated with phytochemicals according to the present invention exhibit no cytotoxicity, have a superior antioxidant effect, have a superior skin-regenerating effect due to the suppression of skin cell collagen cleaving enzymes (MMP-1 and MMP-8), and have a superior superoxide dismutase (SOD) activity and thus a superior degree of antioxidation in skin cells, and therefore may be useful as a cosmetic composition for preventing skin aging.

The invention discloses a preparation method and application of a thiol-functional carbon nano tube (CNT). The thiol-functional CNT is successfully prepared by adopting a one-step method, has the characteristics of simple steps, short reaction time, high grafting rate and the like, is good in performance and wide in application and can serve as a mercury ion adsorbent, and the measured maximum adsorption amount is 2300mg/g, namely 2.3g of mercury can be adsorbed by 1g of adsorbent. The thiol-functional CNT also can serve as an electrochemical sensor for measuring the mercury ion concentration in sewage. Experiments prove that the detection limit of a modified electrode on mercury ions Hg (II) is 3.0nM (S/N=3), the linear range is 5-90nM, the CNT can be used for detecting Hg (II) in an actual water sample, and the recovery rate is in a range from 90 percent to 95 percent.

The invention discloses boric acid affinity rutin molecularly imprinted magnetic nanospheres as well as a preparation method and an application thereof, and belongs to the technical field of nano material preparation. The method comprises the following steps of: modifying a phenylboronic acid group on the surface of a carboxyl magnetic sphere through amido bond connection, taking the obtained phenylboronic acid modified magnetic nanosphere as a carrier, taking rutin as a template molecule, taking polyethyleneimine as a hydrophilic functional monomer, and adopting a method of combining two-step template fixation and surface imprinting. The rutin molecularly imprinted magnetic nanospheres prepared by the method disclosed by the invention are rich in functional monomer groups, uniform in particle size, good in water dispersibility and good in selectivity; the method is a novel method for preparing the rutin molecularly imprinted polymer with high affinity and high selectivity, and shows a wide application prospect in the aspects of selective extraction and separation of the active pharmaceutical ingredient rutin in plants and the like.