49results about How to "Original and innovative" patented technology

The invention discloses an elastic material with a semi-interpenetrating network structure synthesized by nitrated chitosan and polyester polyurethane, a preparation method and application thereof. The product is obtained by stirring and reacting polyester polyurethane prepolymer, nitrated chitosan and 1,1,1-trimethylol propane in tetrahydrofuran and solidifying at 18-100 DEG C for 4-24 hours. This new material has good mechanical strength, high elasticity and biodegradability, and the production process is simple and convenient. It can be used as a biodegradable coating, appliance and membrane material, and has application prospects in the fields of medicine, daily use, chemical industry and environmental protection.

The invention provides an indole semicyanine fluorescent probe, a preparation method and its application in the detection of cyanide ions. The probe specifically involved is 2‑(2‑(2‑chloro‑7‑diethylaminoquinolin‑3‑yl) vinyl‑N,3,3‑trimethyl‑ 3H‑ Indole (QIE). It is based on 2-chloro-7-diethylaminoquinoline-3-formaldehyde and N,2,3,3-tetramethyl- 3H‑ Indole is prepared by condensation of raw materials. After the cyanide ions reacted with QIE, the naked eye could see that the solution changed from purple to colorless, and under a 365 nm ultraviolet light, the solution changed from dark purple fluorescence to bright yellow-green fluorescence. The minimum detection limit of cyanide ion by UV-Vis spectrophotometry is 1.05×10 ‑6 mol / L, the minimum detection limit of cyanide ion detected by fluorescence spectrophotometry is 4.16×10 ‑8 mol / L. The invention can quantitatively and qualitatively detect micro / trace cyanide ions in samples from different sources by means of dual channels of ultraviolet-visible spectrophotometry and fluorescence spectrophotometry.

The invention discloses a novel condensed heteroaromatic ring organic light-emitting material, the structure of which is 11-(diethylamino)benzo[g]benzo[4,5]imidazo[1,2-a][1, 8] Naphthyridine-6-carbonitrile (NBC). This material is prepared by one-pot method using 2-chloro-7-(diethylamino)quinoline-3-formaldehyde and 2-cyanomethylbenzimidazole as raw materials. In solution, NBC has large molar absorption coefficient, high fluorescence quantum yield, and large stokes shift value. It is sensitive to solvent, environmental pH, and viscosity. It can be used as a pH and viscosity probe to measure pH and solution viscosity in real time and quickly. In the solid state, the emission wavelength of NBC is in the near-infrared region, and the luminous efficiency is high. NBC has good luminescence properties in both solution and solid state, and the dual-efficiency organic materials realize the multi-functionalization of applications.

The invention discloses a polymer nanometer sensor and its application for detecting type 1 hyaluronidase (Hyal-1). Based on the principle of differential degradation of hyaluronic polymer nanomicelles by different hyaluronidases, the invention encapsulates hydrogen bond-induced enhanced dye molecules in nanomicelles, and uses this stimulus-responsive nanomaterial to regulate the relationship between dyes and water. Intermolecular interaction, design of highly selective and sensitive Hyal-1 fluorescent nanosensor. The type-1 hyaluronidase detection kit includes a type-1 hyaluronidase fluorescent nanometer sensor and a solvent. The results show that the kit has the advantages of high specificity, good sensitivity, easy operation, economical and practical, and realizes the detection of Hyal‑1 in actual urine samples. Therefore, the inventive method has original innovation, good social value and application prospect, and is expected to be applied to the detection and analysis of Hyal-1 in the urine of bladder cancer patients.

The invention discloses a highly active oxoaporphinoid-rhodium (III) complex, and synthetic methods and an application thereof. The complex can be synthesized through adopting three different methods. The three synthetic methods gradually become simple from complex, and are completely different from present synthetic methods of oxoaporphinoid-metal complxes. The inhibition effect of a ligand OGC, an oxoglaucine-rhodium (III) complex and the complex disclosed in the invention on various tumor cell strains and in vivo tumor inhibition of the complex disclosed in the invention are investigated in the invention, and results show that complex disclosed in the invention has substantially enhanced in vitro and in vivo antitumor activity, and has far higher antitumor activity than the ligand OGC and the oxoglaucine-rhodium (III) complex. The structural formula of the highly active oxoaporphinoid-rhodium (III) complex is represented by formula (I) shown in the description.

The invention discloses a quick detection method for cyanide ions. The quick detection method is characterized in that by studying the optical mutual action of DNA (deoxyribose nucleic acid)-copper nanoparticles (DNA-CuNPs) and fluorescent dye molecules, the fluorescence of a DNA-embedded type dye EBMVC-B can be efficiently extinguished by CuNPs, the CuNPs can be quickly etched by the cyanide ions (CN<->), the fluorescence is restored, and the process can be completed in several seconds; the quick fluorescence analysis and detection of the cyanide ions is realized. After proofing by results, the quick detection method has the advantages that the specificity is high, the sensitivity is good, the operation is simple and convenient, the economy and practicality are realized, and the like; the detection speed is quick, and the error caused by short CN- half-life period, and complicated pretreatment process or long detection time can be overcome; the detection of CN<-> in an actual water sample and the florescence imaging analysis of CN<-> in edible plant tissues are realized; the original innovativeness, and good social value and application prospect of the method are realized.

The invention is an environment-friendly organic photovoltaic element. The photovoltaic element consists of a cathode layer on a glass substrate, a cathode modification layer deposited on the cathode layer, and an n-type doped layer deposited on the cathode modification layer. It consists of a photoactive layer, an anode modification layer deposited on the n-type doped photoactive layer, and an anode layer deposited on the anode modification layer. An environmentally friendly organic photovoltaic element proposed by the present invention breaks through the shackles of the traditional two-component photoactive film in the preparation technology of the photoactive film, has original innovation, can improve the carrier collection efficiency and energy conversion efficiency of the device, and has It helps to realize the long-term stability of organic solar cells, thereby improving the performance of organic solar cells.