14 results about "Fluoranthene" patented technology

The invention relates to the technical field of environmental remediation microorganisms, and discloses a mixed polycyclic aromatic hydrocarbon degrading bacterium G3 suitable for variable environments and application thereof. The bacterial strain is pseudoxanthomonas sp. G3, and is preserved in the China Center for Type Culture Collection (CCTCC), and the preservation number is CCTCC M 20251828. The strain G3 is enriched and separated from soil of a certain coking plant in Beijing, can utilize polycyclic aromatic hydrocarbons such as acenaphthene, fluorene, phenanthrene, fluoranthene and pyrene as a single carbon source, and can simultaneously degrade acenaphthene, fluorene, phenanthrene, fluoranthene and pyrene mixtures within 14 days, so that the degradation rate of each component is not lower than 70%; good growth and degradation activity are maintained under the conditions that the temperature is 20-37 DEG C, the salinity is 0-4% NaCl and the pH value is 5.0-9.0, and the degradation rates can reach 100% and 84.15% respectively after the strain is cultured in a single carbon source culture solution with the initial concentration of phenanthrene and pyrene being 50 mg.L <-1 > for 7 days; after the polycyclic aromatic hydrocarbon aging polluted soil is cultured for 28 days, the mixed polycyclic aromatic hydrocarbon in the soil can be effectively removed. According to the invention, the technical bottlenecks of poor environmental adaptability and low mixed pollutant degradation efficiency of the existing degrading bacteria are solved. Therefore, the strain has good application potential in the aspect of bioremediation of the polycyclic aromatic hydrocarbon polluted environment.

The invention discloses a simple and low-cost preparation method of a dark blue organic light emitting diode material benzo [k] fluoranthene. The method comprises the following steps: by taking aryl halide as an initial raw material, activating the aryl halide and inorganic alkali under heating under the action of a catalytic system, carrying out DA reaction under the light irradiation under the synergistic catalysis of polycyclic aromatic hydrocarbon and a metal catalyst, and oxidizing by an oxidant to obtain the benzo [k] fluoranthene. Wherein the polycyclic aromatic hydrocarbon has an autocatalytic effect under illumination, and cooperates with metal halide as a reaction catalyst to activate carbon halogen bonds on halogenated aromatic hydrocarbon, so that the halogenated aromatic hydrocarbon and the polycyclic aromatic hydrocarbon are subjected to cycloaddition Diels-Alder reaction, and then aromatization is performed to obtain the target product benzo [k] fluoranthene. All raw materials involved in the synthetic route are cheap and easy to obtain, and expensive and dangerous chemical raw materials are avoided. The reaction is carried out under illumination, the condition is mild, compared with a traditional high-temperature reaction condition, the condition is better, and the green chemistry and sustainable development concepts are met.

The application provides a degradation method of polycyclic aromatic hydrocarbons in coal gangue and application thereof, and the degradation method comprises the following steps: mixing coal gangue, microbial strains with biological weathering, microbial strains for degrading polycyclic aromatic hydrocarbons, nutrients and water, and culturing, so that the degradation of polycyclic aromatic hydrocarbons in the coal gangue is completed; the polycyclic aromatic hydrocarbons include any one or a combination of at least two of naphthalene, acetylene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benz[a]anthracene, chrysene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, indeno[1,2,3-c,d]pyrene, benz[a,h]anthracene and benzo[g,h,i]perylene. The degradation method of polycyclic aromatic hydrocarbons in the coal gangue provided by the application can simultaneously degrade multiple polycyclic aromatic hydrocarbons, and has good degradation effect.

The application discloses a device and method for cutting fluoranthene crystal by using a photo-induced electric field of lithium niobate. The method uses a spatial electric field generated by laser irradiation of iron-doped lithium niobate to realize cutting of micron-size fluoranthene crystal under heating conditions. The whole device is simple to build, and realizes real-time control of the crystal cutting position and residual length. The technology can be applied to various applications of organic field effect transistors and other organic optoelectronics, and has important significance for processing and modification of organic crystals.

The invention relates to a boron-nitrogen doped fluoranthene compound as well as a preparation method and application thereof. The structural formula of the boron-nitrogen doped fluoranthene compound is as shown in a formula 1 or a formula 2, and a boron-nitrogen unit is embedded in a molecular central axis; 1, 8-dibromo-boron aza-naphthalene is used as a raw material, and the boron-nitrogen-doped fluoranthene compound and the derivative thereof are synthesized by a one-pot method through a palladium-catalyzed Suzuki-Miyaura coupling reaction. The method is simple and convenient to operate and mild in reaction condition, and has good structural adjustability and applicability; the obtained compound shows excellent photoelectric properties and can be applied to the field of organic photoelectric functional materials.

The invention relates to the field of organic photoelectricity, in particular to an arylamine organic compound and an organic electroluminescent device. The invention provides a compound as shown in a general formula (I), which comprises a specific group, is beneficial to realizing better charge transport and electron blocking capabilities by being connected with an arylamine group, is endowed with excellent thermal stability, and can be used as a hole transport material to be applied to an OLED (Organic Light Emitting Diode) device. And higher luminous efficiency and longer service life of the device can be realized.

This invention belongs to the field of environmental microbial remediation technology, specifically relating to a microbial strain suitable for low-temperature environments and capable of simultaneously degrading multiple polycyclic aromatic hydrocarbons, and its application. The microorganism is bacterium B, named *Roseola oryzae*. Rossellomorea oryzaecoriticis This bacterium, B, was deposited on August 14, 2024, at the China General Microbiological Culture Collection Center (CGMCC), with accession number CGMCC No: 31584. The 16S rDNA sequence of the microorganism is shown in SEQ ID NO: 1. This bacterium B can be applied to degrade PAHs such as naphthalene, fluoranthene, and pyrene in low-temperature environments, which is beneficial for enriching the strain resource bank of PAH-degrading bacteria in low-temperature environments. The degradation method of this bacterium B has the advantages of high efficiency, energy saving, and environmental protection, providing an effective biodegradation method for the treatment of PAH-polluted water or soil in the cold regions of Northeast China.

The invention discloses a colorectal cancer related polycyclic aromatic hydrocarbon plasma metabolism molecular biomarker as well as a screening method and application thereof, and belongs to the technical field of colorectal cancer. Plasma of a colorectal cancer case and a healthy control group person is detected through gas chromatography-mass spectrometry; the method comprises the following steps: exporting information of a plurality of metabolites detected by a plasma sample, adjusting a batch effect through a ComBat method based on empirical Bayes, and then screening out polycyclic aromatic hydrocarbons with a detection rate of more than 60% in a colorectal cancer case contrast sample; three polycyclic aromatic hydrocarbons are screened out through a random forest method to serve as plasma metabolism molecular biomarkers of colorectal cancer related polycyclic aromatic hydrocarbons, the biomarkers are combined biomarkers of fluorene, anthracene and benzo [k] fluoranthene, the combined AUC of the three polycyclic aromatic hydrocarbons is 0.785, and the prediction accuracy of colorectal cancer is high.

The application discloses a method for controlling and inhibiting plant absorption of fluoranthene based on nano zero-valent iron dispersion technology. The method comprises the following steps: preparing an nZVI dispersion liquid by taking IGEPAL CA-720 as a dispersant, spraying the tomato planted in the fluoranthene contaminated soil through the leaf surface, spraying once every 3 days, spraying 5 times in total, and keeping the soil water content as 60% of the maximum field water holding capacity during the cultivation. By optimizing the dispersion effect of nZVI, the application significantly relieves the inhibition of fluoranthene on plant growth, and reduces the accumulation amount of fluoranthene in the plant body, and the bioconcentration factor (BCF) and the transfer factor (TF) are reduced by 38.9% and 46.1% respectively. The method is simple in operation, friendly to the environment, and can effectively control and inhibit the accumulation of fluoranthene in the plant body, thereby providing technical support for safe production of crops in contaminated soil.

This invention relates to compounds comprising heterocyclic groups substituted with fluoranthene groups and specific aromatic or heteroaromatic groups. These compounds are suitable for use in electronic devices, particularly organic electroluminescent devices. In some embodiments, the compounds are used as matrix materials for phosphorescent or fluorescent emitters, as well as hole-blocking layers or electron transport layers.

The present invention provides a compound of general formula 1, a light-emitting device comprising the compound, a display apparatus, an electronic device, and an illumination apparatus. The compound of the present invention has a specific structure comprising fluoranthene and phenanthroline. The present invention can provide an organic thin film light-emitting element that simultaneously achieves high light-emitting efficiency, low driving voltage and long lifetime.

A class of deep-red to near-infrared iridium(III) complexes containing fluoranthene groups, their preparation methods, and applications are disclosed. The general chemical formula of the complexes is obtained by introducing electron-rich fluoranthene groups with strong rigidity and large π-conjugated planes, and modifying them with different functional groups to enhance the hole transport performance of the molecules. At the same time, fluoranthene is modified with electron-deficient functional groups to synthesize a series of organic ligands. The designed ligands have both large conjugation and strong charge transfer characteristics. The emission spectrum of the complexes can be redshifted in a simple step to obtain a series of deep-red to near-infrared iridium(III) complexes, achieving long-wavelength emission from deep red to near-infrared at 672nm, 690nm, 692nm, and 738nm. These can be used as organic light-emitting materials in the light-emitting layer of OLED devices, providing a new molecular design idea for the development of organic near-infrared light-emitting materials. In addition, the preparation method is simple, the raw materials are readily available, the cost is low, and it can be mass-produced, which has great practical value.

A color-changing window for fire early warning belongs to the technical field of building materials and safety protection and comprises a fireproof window frame, three pieces of color-changing glass are fixedly mounted in the fireproof window frame, and color-changing films are attached to the front faces and the back faces of the three pieces of color-changing glass. The main materials of the color-changing films on the front and back surfaces of the three pieces of color-changing glass are fluorane leuco fuel and bisphenol A compounds, the weight ratio of the fluorane leuco fuel to the bisphenol A compounds is 1: 3, and the assistants of the color-changing films on the front and back surfaces of the three pieces of color-changing glass are nano silicon dioxide and an ultraviolet absorbent; three pieces of photochromic glass are arranged, a photochromic film is attached to the outer surface of the photochromic glass, the photochromic glass is transparent in a normal state, when a fire occurs indoors and the temperature rises to exceed 60 DEG C, the photochromic film is heated to be changed into red from transparent, and at the moment, outdoor personnel can find the color at the first time and take rescue measures in time; therefore, the purpose that the color-changing glass changes color when the indoor fire breaks out and the temperature rises is achieved, outdoor people can sense the change of the internal environment state, and rescue can be conducted in time is achieved.

The present invention provides a compound of general formula 1, and a light-emitting device, a display device, an electronic apparatus, and a lighting device comprising the compound. The compound of the present invention has a specific structure including fluoranthene and phenanthroline. The present invention can provide an organic thin-film light-emitting element which simultaneously achieves high luminous efficiency, low driving voltage, and long endurance life.