88 results about "Nano complex" patented technology

The present invention relates to a heat sink sheet including an adhesive containing a carbon nano-complex and having good heat conductivity. The adhesive having good heat conductivity is coated on a graphite sheet to improve heat conductivity, and an existing adhesive process and adhesive coating process are combined into a single process to manufacture a heat sink sheet, thereby providing a heat sink sheet having improved heat conductivity so as to contribute to cost reduction and increased yield.

The invention belongs to the technical fields of preparation and applications of nano-carriers, and in particular discloses a preparation method and an application of a multifunctional membrane-controlled targeting nano-carrier integrating tracing and targeted drug delivery effects. With nano mesoporous silica (MSN) as a drug 'warehouse', a positively charged high molecular material and a negatively charged high molecular material as preparation materials of a gating membrane, and adriamycin (DOX), cis-platinum, imatinib, taxol and the like as model anti-cancer drugs, research contents mainlyinclude optimization and improvement of natural materials, construction and process optimization of the gating membrane, structural characterization of a nano complex, drug release kinetic characteristics of drug molecules under the control of the gating membrane, and the like. Meanwhile, in the combination with the tracing imaging function of a fluorescent quantum dot, drug delivery behaviors andanti-tumor effectiveness of the membrane-controlled nano drug delivery system undergo preliminary evaluation through in-vitro experiments. Based upon research results, references are provided for thedesign and preparation of the novel membrane-controlled nano drug delivery system.

The invention discloses a metal polyphenol collagen membrane material as well as a preparation method and application thereof. The metal polyphenol collagen membrane material is a hydrogel material and comprises collagen and a nano complex loaded on a porous structure of the collagen, and the nano complex is obtained by chelating metal ions and polyphenol. The metal polyphenol collagen membrane material has good pH responsiveness, has antibacterial and hemostatic effects at the same time under response conditions, has an excellent skin wound repairing effect, and can be applied to skin wound repairing materials.

The invention discloses a novel mesoporous silicon sphere co-loaded medicine nano-complex and a preparation method thereof. The novel mesoporous silicon sphere co-loaded medicine nano-complex is Ce6@MMSN / DOX / Ko143@PAsp-b-PEG-FA; the preparation method comprises the following steps: selecting TEOS (Tetraethyl Orthosilicate) as a silicon source, CTAB (Cetyltrimethyl Ammonium Bromide) as a template agent and n-hexane as a pore expanding agent and synthesizing mesoporous silicon dioxide nanoparticles with a double-pore-channel core-shell structure; carrying out amination modification on the mesoporous silicon dioxide nanoparticles; synthesizing Fe3O4 nanoparticles by adopting an LSS (Liquid-Solid-Solution) phase transfer method and ligand exchange reaction; modifying and embedding superparamagnetic iron oxide nanoparticles on the surface of aminated MSN through nucleophilic substitution, so as to construct magnetic mesoporous silicon dioxide nanoparticles; taking DCC (Dicyclollexyl Carbodiimide) as a condensation agent and covalently binding a photosensitizer Ce6 through amidation; meanwhile, loading a BCRP (Breast Cancer Resistance Protein) inhibitor Ko143; then crossly linking a copolymer FA-PEG-b-PAsp; finally, loading an anti-tumor medicine DOX.

The invention protects a preparation method of magnetic Fe3O4 / CeO2 nano-complex and a method of treating a methylene blue solution by using the magnetic Fe3O4 / CeO2 nano-complex as a Fenton-like catalyst. The magnetic complex catalyst consists of a nano-ceria material which coats magnetic ferroferric oxide nanometer particles. The magnetic solid catalyst provided by the invention can be used as a heterogeneous catalyst to catalyze hydrogen peroxide to generate hydroxyl free radicals for degradation of methylene blue. By using the method provided by the invention, the degradation rate of methylene blue in 30 minutes reaches 90% or more.

The invention belongs to the technical field of sewage treatment and particularly relates to a preparation method of a novel liquid-state nano complex flocculant. The preparation method comprises thefollowing steps: step 1, taking waste liquid containing hydrochloric acid, corroded aluminum and oxidized ferric, discharged in production processes, as raw materials, and performing stirring treatment for reacting to generate an aluminum chloride and ferric chloride mixture solution; step 2: adding the aluminum chloride and ferric chloride mixture solution generated in the reaction to a sodium hydroxide solution, adjusting the solution to a certain pH value, and standing the solution for a period of time to obtain a polymeric aluminum ferric chloride (PAFC) solution; and step 3, adding the obtained PAFC solution to an organic cation polymer product to generate a nano flocculant. The nano complex flocculant prepared by the preparation method provided by the invention has the beneficial effects that the nano complex flocculant belongs to an efficient complex variety, and pesticide wastes are used as raw materials, so that waste utilization is realized, ecological environment protectionis realized, and green cyclic development of agriculture is promoted; and compared with a traditional solid-state product, the nano complex flocculant has the advantages of high reaction speed, full reaction, uniform concentration and greatly improved treatment efficiency.

The invention discloses a construction method and application of a carbon nanotube-fullerene complex-based non-enzymatic electrochemical sensor. The manufacturing method of the sensor comprises the following steps of (1) pre-activating multi-walled carbon nanotubes (MWCNTs); (2) preparing a composite material (MWCNTs-ZnP-C60) of the multi-walled carbon nanotubes and zinc porphyrin fullerene (ZnP-C60); and (3) rousing the electrochemical activity of the MWCNTs-ZnP-C60 by virtue of tetraoctyl ammonium bromide (TOAB), modifying the MWCNTs-ZnP-C60 on the surface of a glassy carbon electrode (GCE) and constructing the non-enzymatic electrochemical sensor (TOAB / MWCNTs-ZnP-C60 / GCE). The ZnP-C60 is utilized as an electron intermediate, the MWCNTs are taken as an electron transfer promoter, and the TOAB is taken as an electronic wake-up agent of the intermediate ZnP-C60, and the ZnP-C60, the MWCNTs and the TOAB work together to prepare an MWCNTs-ZnP-C60 nano-complex with good electrochemical activity; and the non-enzymatic electrochemical sensor with good electro-catalytic property is constructed in an TOAB membrane and is applied to detection of nitrite.

The invention discloses a nano complex metal coating knitwear and its production technique. The invention objective is to deal with the problem which knitwear is weak electric conductive, weak electromagnetic wave shed, weak washing resistance and tough hand feeling. The technique is to coat a nano complex metal on the knitwear. The metal contains silver 1- 10 percent, nickel 20- 70 percent; copper 10- 40 percent; zinc 0- 30 percent. Average particle size of the nanometer material is between 40 and 90 nanometer. The preparation technique includes: 1, knitwear coat layer reform; 2, dressing agent preparation; 3, nano complex metal coating process; 4, baking. The invention enhances washing resistance and softness of the coat layer greatly with fine electrical conductivity, moreover the bacteriostatic ratio to staphylococcus is above 99 percent.

The invention relates to a quadruple-responding nano composite. With a reductive-ruptured disulfide bond as a connection point, the nano composite is prepared by polymerizing dimethylaminoethyl methacrylate on surface of a reduced graphene oxide-mesoporous silicon dioxide composite through an atom transfer radical polymerization reaction. The nano composite has temperature, pH value and reduction responding properties, has near-infrared light response, and has wide application prospect in the field of controlled release.