41results about How to "Broad research prospects" patented technology

The present invention relates to a preparation method of multi-level sustained-release drug-loaded nano-short fibers, comprising layered double hydroxide (LDH) loaded with anticancer drug doxorubicin (DOX) and P-gp inhibitor α-growth Phenolsuccinate (α-TOS) was mixed together in poly(lactic-co-glycolic acid) (PLGA) spinning solution for electrospinning and homogenized. The present invention constructs double-loaded multi-level slow-release drug-loaded nano-short fibers with organic and inorganic dual carriers. The anticancer drugs and P-gp inhibitors in the material can be released in multiple levels in the slightly acidic environment of the tumor, and are used to overcome cancer. The multi-drug resistance of cells, the double-carrier nanofiber prolongs the drug release path, realizes the long-term sustained release of anticancer drugs, and provides a new method for the long-term effective treatment of drug-resistant tumors.

The invention provides a boron-doped zinc oxide laminated sphere / p-type PET-ITO heterojunction and a preparation method and an application thereof. The preparation method comprises the steps of taking zinc nitrate hexahydrate, urotropine and boric acid as main reactants, and preparing a layer of quite thin ZnO seed crystal layer on the surface of a flexible substrate PET-ITO through ionic sputtering; then preparing boron-doped zinc oxide precursor solutions of different concentrations; and next, enabling a B-doped ZnO nano-structure to be grown on the vertically-put flexible substrate through a hydrothermal method to obtain the B-ZnO / PET-ITO heterojunction which can be used as a catalyst. The product obtained from the hydrothermal reaction has the special laminated spherical appearance, a typical rectifying characteristic, and a relatively high degradation effect on colored azo dye active yellow 15, so that the boron-doped zinc oxide laminated sphere / p-type PET-ITO heterojunction has wide research prospects in the fields of a heterojunction diode, environmental governance and the like, and is suitable for large-area production and application.

The present invention is one kind of type-D cast iron containing Pb, As and Sn and with raised performance. The present invention is superior to available technology, in which Pb, As and Sn are harmful to the performance of cast iron. The type-D cast iron of the present invention contains: C 3.9-4.5 (in weight portions, the same below), Si 1.2-1.6, Mn 0.6-0.95, P not more than 0.07, S not more than 0.04, Pb 0.005-0.009, As 0.03-0.08, Sn 0.1-0.4, Al 0.01-0.02 and Ti 0.04-0.09, except Fe. The type-D cast iron of the present invention as one new low cost engineering material has very high strength performance and excellent antioxidant performance, and may be used in high strength parts, such as crank shaft and cam shaft in refrigerator and compressor, heat resisting parts, such as glass mold, and heat resisting and wear resisting casting, such as roller.

The invention relates to the field of new applications of medicines, in particular to the application of murabutide in the preparation of medicines for the prevention and treatment of bone marrow, small intestine and spleen damage caused by ionizing radiation. The murabutide provided by the invention has the advantages of low toxic and side effects, obvious prevention and treatment effect on radiation-sensitive organ damage, and the like as a medicine for preventing and treating bone marrow, small intestine, and spleen damage caused by ionizing radiation. It shows the unique advantages of murabutide in the prevention and treatment of multiple radiation-sensitive organ damage caused by ionizing radiation, and the purpose is to explore more efficient and low-toxicity treatment methods for the prevention and treatment of ionizing radiation damage; at present, there is still a lack of effective prevention and treatment of multiple organ damage caused by ionizing radiation at home and abroad Technical means are also one of the key problems that urgently need to be studied and solved in the field of radiology and clinical radiotherapy. Therefore, murabutide has broad development and application prospects in the field of medicine in my country as a drug for the prevention and treatment of multiple organ damage caused by ionizing radiation.

The invention discloses a method for leaching lithium form coal ash. The method includes the steps of 1), a sintering process, namely weighing the coal ash, sodium carbonate and calcium carbonate in the mass ratio of 1:0:1-1:0:0.8:1, performing even mixing in a corundum crucible, placing the mixture in a muffle furnace for roasting for 60-100 minutes at the temperature ranging from 1000DEG C to 1200DEG C, cooling to indoor temperature and grinding the mixture to 200 mesh with a ball grinding mill; 2), a leaching process, namely evenly mixing a well-ground clinker with a sodium carbonate solution 3-8% in concentration in the solid-to-liquid ratio of 1:15-1:25 prior to transferring to a colloid grinder, subjecting the mixture to mechanical grinding for 30 minutes prior to transferring to a high-pressure kettle, cooling mixed liquid in the high-pressure kettle after high-pressure cooking for 20-60 minutes at the temperature ranging from 100DEG C to 150DEG C is completed prior to performing extraction filtration to obtain lithium leaching liquid. The method for leaching the lithium form the desiliconized coal ash through alkali sintering-dilute alkali dissolution is put forward for the first time, broad research prospects for extracting the lithium form the coal ash are achieved, a foundation is laid for research in developing lithium resources and application strategies, and meanwhile, industrial utilization valve of the coal ash is improved.

The invention discloses a hard carbon negative electrode material for a high-performance lithium-ion power battery, a preparation method and an application thereof, belonging to the field of electrochemistry. Phosphorus is doped in the hard carbon negative electrode material of the present invention, the mass ratio of phosphorus precursor and hard carbon precursor is 8-11:6, and described hard carbon precursor is phenolic resin, and described phosphorus precursor is phosphoric acid; The particle size range of the hard carbon negative electrode material is 10-50 microns. The rate performance of the hard carbon negative electrode material of the invention is obviously improved, and has broad research prospects in the field of practical application of power batteries.

The invention relates to a preparation method of metal nano-particles coated with graphene modified conductive polymer gel. The method comprises the steps of firstly mixing tin-nickel nano-particles with oxidized graphene solution uniformly, then adding pyrrole, oxidizing agents and dopants, and after full reaction, cooling and drying samples, thus acquiring the metal nano-particles coated with graphene modified conductive polymer gel. The metal nano-particles coated with graphene modified conductive polymer gel prepared by the invention are of three-dimensional porous structures, the particles are uniformly distributed in graphene sheets and gel, and polypyrrole gel is tightly connected with the graphene sheets. An electrode prepared by using tin-nickel nano-particles coated with graphene modified conductive polymer gel has high cycling stability and long service life. Cycle performance of a battery can be improved by taking the tin-nickel nano-particles coated with graphene modified conductive polymer gel prepared according to the method of the invention as the negative electrode material, and a new research method is provided for solving a volume expansion problem caused by taking the tin-base material as the negative electrode material of the lithium ion battery.