13results about How to "Reduce degradation rate" patented technology

The utility model belongs to the technical field of perovskite cells, and discloses a novel packaging structure of a perovskite solar cell. Comprising a substrate and a perovskite solar cell arranged above the substrate, the perovskite solar cell is coated with a first packaging layer, a second packaging layer is arranged above the first packaging layer, the second packaging layer comprises a plurality of groups of blocking layers, each blocking layer comprises a hydrophobic layer and a water oxygen absorption layer which are alternately arranged from bottom to top, and the hydrophobic layers and the water oxygen absorption layers are arranged on the substrate. A hydrophobic layer is arranged on the uppermost layer in the barrier layers; and the blocking layer is coated with a sealing layer. And external water vapor and oxygen are subjected to multiple absorption and multiple blocking, so that the probability that the water vapor enters the perovskite battery is reduced. The water vapor barrier property is improved, the water vapor is prevented from permeating the surface of the perovskite solar cell, the probability of degradation caused by water vapor entering a perovskite layer in the perovskite solar cell is reduced, and the service life of the perovskite solar cell is prolonged.

The invention discloses an In2O3 / ZnO / BiOBr catalyst for efficiently degrading rhodamine B and a preparation method of the In2O3 / ZnO / BiOBr catalyst. The In2O3 / ZnO / BiOBr photocatalyst with a high specific surface area is prepared through a simple one-pot hydrothermal method, the degradation performance of the photocatalyst is improved through simultaneous coupling of In2O3, ZnO and BiOBr, formed double-Z-type heterojunctions are beneficial to inhibition of recombination of photon-generated carriers, and organic dye rhodamine B can be efficiently degraded through construction of the structure. And after sunlight irradiation is simulated for 40 minutes, the degradation rate of rhodamine B reaches 98.80%, and after four continuous degradation experiments, the degradation rate is not obviously attenuated. The material is simple in preparation method and excellent in degradation performance, and has a wide application prospect in the field of organic pollutant removal.

The invention relates to a raw pesticide or a parent pesticide as well as a preparation method and application of the raw pesticide or the parent pesticide. The raw medicine or the parent medicine contains at least two kinds of materials from 1-N glycosyl chain ridinyl-2-amino-(L-lysyl) n-L-lysine-2-deoxygulosamine, and the raw medicine or the parent medicine contains at least two kinds of materials from 1-N glycosyl chain ridinyl-2-amino-(L-lysyl) The total content of the 1-N glycosyl lindinyl-2-amino-(L-lysyl) n-L-lysine-2-deoxygulosamine is more than 70% in terms of the total mass of the raw medicine or the parent medicine; wherein n represents the number of L-lysyl and is any integer from 0 to 4. The raw pesticide or the parent pesticide of the pesticide contains 1-N glycosyl-lindinyl-2-amino-(L-lysyl) n-L-lysine-2-deoxygulosamine with relatively high content, and has a better effect in the aspects of stability of effective components, stability of antibacterial ability and the like compared with the raw pesticide or the parent pesticide with relatively low content.

This invention discloses a method for producing granules that reduces the loss of active ingredients, relating to the field of granule preparation technology. This method addresses the problem of active ingredient loss in traditional granule production due to high temperatures, oxidation, mechanical friction, and solvent residue. It employs a four-stage process—low-temperature pretreatment, inert gas-protected granulation, gradient drying, and nano-coating and end-capping—combined with the application of a specialized composite binder, significantly improving the retention rate of active ingredients. Experimental data shows that granules produced using this method have a higher retention rate of active ingredients than those produced by traditional methods, while also exhibiting high granule formation rate and dissolution rates that meet relevant standards. The process of this invention is highly stable and widely adaptable, and can be widely applied to granule production in the pharmaceutical, pesticide, food, and feed industries.

The invention discloses a high-stability povidone-iodine preparation, including polyvinylpyrrolidone K30 15.0%-25.0%, refined iodine 10.0%-12.0%, ethanol 20.0%-30.0%, potassium iodide 2.0-4.0%, organic acid 0.1-1.0%, organic acid salt 0.1-2.0%, surfactant 1.0%-3.0%, stabilizer 1.0%-5.0%, and the rest is water. Compared with the prior art, the invention has the beneficial effects that the povidone-iodine preparation obtained by the invention has good stability, low reaction temperature during the reaction, short total reaction time (only 4h-6h), high iodine yield (low degradation rate), can improve production efficiency, and reduce production energy consumption.

The invention relates to an emulsion containing spectinomycin hydrochloride and lincomycin hydrochloride and a preparation method thereof, and belongs to the field of animal medicine. The emulsion is prepared by jointly combining spectinomycin hydrochloride, lincomycin hydrochloride, tea polyphenol, lipoic acid, polyvinyl alcohol (PVA) and the like and matching with a specific ultrasonic treatment process, and the method remarkably improves the stability of the emulsion, reduces drug degradation and improves the bioavailability of the drug. Animal experiments show that the emulsion prepared by the invention can be quickly and completely absorbed after being injected, the antibody level after vaccination in an animal body can be remarkably improved, and the validity period of the antibody is prolonged. The emulsion disclosed by the invention is simple in preparation method and suitable for large-scale production, and has a relatively good application prospect.

The invention relates to a single-cell nucleus extraction method for fresh cryopreserved tissues. Comprising the following steps: 1) mixing a tissue with Lysis Buffer, standing and infiltrating to obtain a wetted substance A; 2) grinding and cracking the wetted substance A to obtain a lysate B; 3) blowing, beating and filtering the lysate B to obtain filtrate C; (4) centrifuging the filtrate C, removing supernate, adding Wash Buffer into a precipitate, blowing, beating and resuspending to obtain a resuspended substance D; (5) centrifuging the resuspended matter D, removing supernate, adding Diluted Nucleic Buffer into the precipitate, and resuspending to obtain a resuspended matter E. (6) centrifuging the resuspended matter E, removing supernate, adding Diluted Nucleic Buffer into the precipitate, resuspending, and blowing and beating to obtain a cell nucleus suspension, wetting, grinding and splitting, filtering, and centrifuging for multiple times, so that impurities in tissues are efficiently removed, and the purity of cell nucleuses is improved.

The present application belongs to the technical field of lithium battery, especially to a method for testing electronic conductivity of solid electrolyte. The steps of the present application are as follows: S1, preparing solid electrolyte sheet: taking solid battery material and placing it in a mold, then pressurizing and pressure maintaining the mold, obtaining the solid electrolyte sheet and measuring its thickness and bottom diameter; S2, conductivity test: pretreating the solid electrolyte sheet, then using a constant potential instrument to measure the direct current polarization of the solid electrolyte sheet under step voltage of 0.1 V, 0.2 V, 0.3 V, 0.4 V and 0.5 V, respectively, to obtain current data under constant voltage polarization; S3, data processing: drawing the direct current polarization curve and the equilibrium current response curve under step voltage by using the obtained current data, and calculating the electronic conductivity of the solid electrolyte sheet. The method of the present application is simple in testing, short in testing time and reliable in data.

This application relates to the field of new energy vehicle charging control technology, and in particular to a vehicle-charging station coordinated charging control method, device, equipment, storage medium, and computer program product. The method acquires power battery status information collected from the vehicle side and sends this information to the charging side. The power battery status information includes parameters related to battery thermal state, charging state, and health state. Based on the power battery status information, the method determines the temperature evolution information of the power battery within a preset prediction range. Based on the power battery status information and temperature evolution information, the method determines the health degradation information of the power battery within the preset prediction range. Based on the temperature evolution information and health degradation information, the method generates corresponding coordinated risk characterization results. Based on the coordinated risk characterization results, the method determines corresponding charging adjustment commands and controls the charging side to adjust the charging of the power battery according to the charging adjustment commands.

This invention relates to the field of biomedical technology, and particularly to a responsive RNA delivery system for glioma, its preparation method, and its applications. By fusing the blood-brain barrier-penetrating peptide ANG-2 to mediate cross-blood-brain barrier delivery, and simultaneously combining it with Siglec-15-mediated immune targeting recognition, a dual-targeting mechanism is constructed. This guides the delivery system to accurately identify glioma lesions, significantly increasing the enrichment of the delivery system in the lesion area, laying the foundation for the efficacy of nucleic acid drugs, effectively improving the targeting and effectiveness of treatment, and avoiding damage to normal brain tissue. The dual stimulation release mechanism of acid response and reactive oxygen species response can accurately respond to endogenous stimuli within glioma lesions and cells. Through the synergistic combination of the GO-C14 carrier and charge-reversed polylysine, the loading efficiency of YTHDF2 siRNA is effectively improved, while simultaneously enhancing the cyclic stability of nucleic acid drugs in vivo.

The invention belongs to the technical field of environmental engineering, and discloses a method for improving residual sludge microbial fuel cell biological power generation and sludge stabilization through pre-chlorination, and the method comprises the following steps: adding sodium hypochlorite into residual sludge, and uniformly mixing, so as to pre-chloridize the residual sludge; and then, adding the pre-chlorinated excess sludge into the sludge microbial fuel cell subjected to microbial acclimation, and continuously operating the sludge microbial fuel cell. According to the method disclosed by the invention, the residual sludge is pre-chlorinated by using the sodium hypochlorite, and the concentration of the sodium hypochlorite in the pre-chlorinated residual sludge is strictly controlled to be 0.2 mg / L, so that resource utilization and sludge stabilization of the residual sludge can be realized at normal temperature based on a microbial fuel cell technology. Through the sludge pre-chlorination means, the performance of the microbial fuel cell can be improved, and especially the biological power generation and sludge stabilization efficiency of the microbial fuel cell can be improved.

By systematically screening the protective agent of the composite quality control product, the optimal protective agent type and concentration of apolipoprotein A-I and transferrin are determined, so that the stability of the apolipoprotein A-I and the transferrin is improved, the degradation rate of the apolipoprotein A-I and the transferrin is reduced, and the composite quality control product can be stored for 4 weeks under an accelerated condition, so that the degradation rate of the apolipoprotein A-I and the transferrin is reduced. The contents of apolipoprotein A-I and transferrin are only slightly reduced; by optimizing a freeze-drying process, the appearance of the composite quality control product after freeze-drying, the stability of the composite quality control product after redissolution and the uniformity of the quality control product are improved.

The invention relates to the field of stabilizers, in particular to a stabilizer for 5-ALA liquid. The stabilizer of the 5-ALA liquid comprises a preservative and an antioxidant, and is characterized by further comprising a pH buffering agent and pectin. The stability of the 5-ALA in a liquid environment is improved through methods of pH stabilization, oxidation resistance and medium adsorption. The degradation rate of the 5-ALA liquid preparation is lower than 5% after the 5-ALA liquid preparation is hermetically stored at room temperature for 100 days.