42results about How to "Has commercial potential" patented technology

The invention discloses construction of a series of bio-reducible cation polysaccharide gene vectors taking polysaccharides including dextran, cyclodextrin and prolan as frameworks and having high gene transfer efficiency with an ATRP (Atom Transfer Radical Polymerization) method, which belongs to the technical field of non-viral gene vectors. In the ATRP method, a polymerization reaction is stable and is easy to adjust and control, a plurality of high-performance cation polysaccharide gene vectors which belong to different molecular weight series and have narrow weight distribution can be prepared as required, and the prepared cation polysaccharide gene vectors have high storage stability and can keep original performance after being stored for certain days or certain months. The polysaccharide cation gene vectors have higher transfer efficiency than a liposome lipfect2000 which is applied commercially internationally in cells such as Hepg2, Hela, C6, Cos7, HEK293 and the like, are easy to use, and have commercial potentials.

The invention provides a polyacid-based pure inorganic multi-color electrochromic film. A preparing method of the electrochromic film includes the steps that (1) polyoxometallate is prepared into an aqueous solution A, the pH value of the solution is adjusted to be 2 through hydrochloric acid; (2) the commercial P25 powder TiO2 is prepared into sizing agents B capable of being used for silk-screen printing; (3) silk-screen printing is conducted on a conductive substrate through the sizing agents B so that a TiO2 thin layer can be printed on the surface of the conductive substrate; (4) the conductive substrate with the TiO2 thin layer is placed into the aqueous solution A, and electro-deposition is conducted; (5) the conductive substrate generated after the electro-deposition is conducted is taken out, cleaned through deionized water and ethyl alcohol, and dried through hot air. The hydrosolvent is adopted during the whole preparation process, and the method is environmentally friendly, free of harm to the environment and easy and convenient to operate. The prepared electrochromic film has good optical contrast and multi-color electrochromic performance, and a system for making an electrochromic display is provided.

The invention discloses a lithium metal battery electrolyte containing composite additives, which comprises electrolyte lithium salt, an organic solvent and composite additives, wherein the organic solvent is an ester solvent, and the composite additives include Lewis acid and lithium nitrate. The lithium metal battery electrolyte of the present invention can be converted into a layer of inorganic fast ion solid electrolyte protective layer rich in nitride and lithium oxide on the surface of the lithium metal negative electrode in situ, so as to promote the coarsening of lithium metal deposition grains and suppress nanoscale dendrites. Crystalline deposition is formed to improve battery safety; and it is compatible with current lithium-ion battery technology and has commercial potential. The invention also discloses a method for preparing the electrolyte solution of the lithium metal battery, which includes the following steps: under the protection of an inert gas, adding the composite additive into the ester solvent in which the lithium salt of the electrolyte is dissolved, and heating the electrolyte within the range of 25-60°C Stir for 1-6 hours. The preparation method has simple operation and stable process.

A method for constructing multifunctional gene therapy vectors based on gold nanoparticles. The invention belongs to the technical field of CT contrast agents and non-viral gene carriers, and specifically relates to gold nanoparticles as the skeleton, including spherical gold nanoparticles, rod-shaped gold nanoparticles (with different axis-to-diameter ratios), arrowhead-shaped gold nanoparticles, and octahedral gold nanoparticles. The morphology of gold nanoparticles, etc., using modified bovine serum albumin to wrap gold nanoparticles, and ATRP method to construct a multifunctional gene carrier. The polymerization reaction is stable and easy to control, and a variety of high-performance cationic gene carriers with different monomer contents can be prepared according to needs, and the storage stability is good, and the original performance can be maintained after being placed for several days or months. The cationic gene carrier has a higher transfection efficiency than the international "gold standard" PEI in HepG2, COS7, 293, C6 and other cells, and its cytotoxicity is much lower than that of PEI. It is simple to use and has commercial potential. And the material has a good CT imaging effect, which lays a good experimental foundation for the development of new contrast agents.

The invention discloses a method for pretreating lignocellulose biomass. According to the method, the raw material lignocellulose biomass with the particle size of 0.5-2mm is pretreated in a hydrothermal environment by using solid alkali as a catalyst to effectively catalyze the stripping degradation of the lignin and the dissolution separation of the hemicellulose in the lignocellulose, thereby breaking the compact structure of the lignocellulose. The separated components can be easily recovered and utilized, and a small amount of inhibitor is generated, thereby being beneficial to converting the lignocellulose biomass into the raw material which is suitable for subsequent enzymolysis fermentation for sugar production. Since the calcium magnesium composite metal oxide solid alkali catalyst can be recovered and recycled, the cost is effectively saved, and the reaction conditions are mild, thereby lowering the facility request and environmental pressure. Thus, the method gives consideration to both energy consumption and economical efficiency, is suitable for large-scale industrial application, and has commercialization potential.

The invention belongs to the technical field of fluorescent coatings, and in particular relates to a method for preparing a cuprous iodide-based hybrid fluorescent coating and its application. The invention combines cuprous iodide-based luminescent clusters into the hybrid coating material through chemical bonds In this paper, an organic-inorganic hybrid functional coating based on cuprous iodide clusters with stable luminescent properties was synthesized. The prepared hybrid fluorescent coating has many advantages such as simple preparation method and film-forming process, low cost, stable fluorescent performance, and large-scale production, and can realize corrosion protection function, and can be applied by spin coating or scraping coating. For decorative coatings, it can also be applied to anti-counterfeiting and other fields through printing technology. The invention not only has important scientific research significance, but also has commercial potential and broad development prospects.

The invention discloses a Cu2O / N-C oxygen reduction catalyst as well as its preparation and application. The catalyst is prepared by dissolving a certain amount of zinc salt and carbon source in an organic solvent, adding a copper source, and obtaining Cu by pyrolysis. 2 O / N-C oxygen reduction catalyst, the experiment adjusts the amount of cuprous oxide generated by adjusting the amount of copper source added. The method is simple and repeatable. The catalyst is a composite material of cuprous oxide and nitrogen-doped carbon. Cuprous oxide is the active site of oxygen reduction catalysis. Nitrogen-doped carbon can improve the electrical conductivity of the material and make the material have a higher current density. The best material prepared is used as an oxygen reduction catalyst for aluminum-air batteries, its oxygen reduction half-wave potential is 0.8V, and its limiting current density is 4.6mA / cm 2 .

A method for preparing a silicon-carbon negative electrode material based on micron silicon dioxide, which comprises the following steps of: 1) preparing a slurry according to the mass ratio of silicon dioxide: carbon source: water=(30-80) : (5-15) : (60-120), wet grinding for 4-5h, freeze-drying to obtain nano-scale silicon dioxide; 2) carbonizing the obtained product of 1) at high temperature toobtain a silicon dioxide-carbon material, and then carrying out magnesium thermal reduction at 600-750 DEG C according to the mass ratio of silicon dioxide-carbon: Mg: NaCl=1:1:1-1:1:10, pickling, washing and drying to obtain the silicon-carbon nanoparticles; 3) ultrasonically mixing the nano particles of 2) with graphene oxide solution, spraying, thermal cracking and coating and reducing to obtain the material. The method has the advantages of low cost, simple operation and uneasy agglomeration, can maintain the original appearance of the sample, has good structural stability of the product,and has strong electrical conductivity and ion transmission capacity of the material.