17 results about "Perfluorinated compound" patented technology

The invention discloses a method for designing a new pollutant perfluorinated compound adsorption material based on a large language model. The method comprises the following steps: firstly, constructing a mixed retrieval enhancement generation framework fusing a structured knowledge graph and vectorized semantic retrieval; then constructing a field knowledge graph and semantic representation big language model oriented to the PFAS adsorption material by utilizing a big language model framework; generating an initial material design framework through a large language model, performing iterative adjustment on a material structure in combination with a machine learning model, and predicting and generating a performance-optimized PFAS adsorption material; and finally, based on knowledge graph reasoning and vector storage information, combining molecular structure information, and recommending an experiment path for PFAS adsorption material synthesis and verification. According to the method, the knowledge graph and the semantic model are constructed to realize automatic extraction and systematization of domain knowledge, an interpretable design rule is generated through data reasoning, an optimization code is automatically generated through combination of LLM and ML, an experiment path is recommended to accelerate material design iteration, the experiment period is shortened, and a reliable screening scheme is provided.

The invention discloses a 3D (three-dimensional) visual bionic intestine-blood vessel-nerve interface organ simulation chip, which is characterized in that a micro-fluidic chip is used as a platform to construct an intestinal tract-blood vessel-brain system which simulates biological transformation of perfluorinated compounds in intestinal tracts under near physiological conditions and biologically transports the perfluorinated compounds through blood vessels; a neuronal cell culture chamber, a vascular endothelial cell culture chamber and an intestinal tract cell culture chamber are respectively arranged on the micro-fluidic chip, the culture chambers are communicated through micro-columns, and the vascular endothelial cell culture chamber serves as a barrier in the middle; perfluorinated compounds enter corresponding cell culture cavities for culture through reagent injection channels of different cell culture channels, generated metabolites are discharged through the channels, and multi-organ interaction and toxicity induced by the perfluorinated compounds are analyzed. The chip can simulate an intestinal barrier structure, a blood vessel and a neural network structure, can highly simulate biological transport and transformation of a perfluorinated compound between intestines and brains, and effectively reduces cost and time.

A protective layer includes a base layer, a first high refractive layer on the base layer and including titanium and niobium, a first low refractive layer on the first high refractive layer and including silicon and aluminum, a second high refractive layer on the first low refractive layer and including a material that is the same as that included in the first high refractive layer, a second low refractive layer on the second high refractive layer and including a material that is the same as that included in the first low refractive layer, and an anti-fingerprint layer on the second low refractive layer and including a perfluorinated compound.

The invention relates to a protective layer and a display device including the same. The protective layer includes a base layer, a first high refractive layer on the base layer and including titanium and niobium, a first low refractive layer on the first high refractive layer and including silicon and aluminum, a second high refractive layer on the first low refractive layer and including the same material as the material included in the first high refractive layer, a second low refractive layer on the second high refractive layer and including the same material as the material included in the first low refractive layer; and an anti-fingerprint layer on the second low refractive layer and including a perfluorinated compound.

Systems and methods are provided for treating, degrading, and incinerating fluorocarbons or fluorinated materials, such as Freon ® with reduced gaseous perfluorinated compound (PFC) emissions. The methods include mixing a fluorinated material with a hydroxide base and optionally a solvent system (e.g., diglyme, polyether, polyether alcohol, polyethylene glycol selected from ethylene glycol and PEG 50 to PEG 3350, N-methyl pyrrolidine, dihydrolevogluton, and / or water ("solvent")) in a batch reactor to form a reaction mixture (also referred to as a suspension). The reaction mixture is heated to a temperature in the range of about 25 °C to about 400 °C for about 0.5 hours to about 240 hours to defluorinate the fluorinated material and produce a defluorinated waste product. More specifically, the methods convert organic fluorine present in the fluorinated material, such as Freon ® to inorganic fluorides. As a result, the defluorinated waste product can be incinerated with reduced harmful gaseous PFC emissions.

Provided are a protective layer and a display apparatus including the protective layer. The protective layer includes a base layer, a first high refractive layer disposed on the base layer and including titanium and niobium, a first low refractive layer disposed on the first high refractive layer and including silicon, a second high refractive layer disposed on the first low refractive layer, the first high refractive layer and the second high refractive layer including a same material, a second low refractive layer disposed on the second high refractive layer, the first low refractive layer and the second low refractive layer including a same material, an anti-fingerprint layer disposed on the second low refractive layer and including a perfluorinated compound, and a metal layer interposed between the first high refractive layer and the first low refractive layer and including aluminum.

The multi-matrix PFAS detection method comprises the following steps: mixing WAX and an HLB (Hydrophile-Lipophile Balance) adsorbent, and then adding a cross-linking agent, an initiator and a catalyst for polymerization reaction to prepare an adsorption glue solution; and filling the adsorption glue solution into a pipe seam between the sampling pipe and the auxiliary pipe, and forming, soaking and cutting to complete the preparation of the annular adsorption phase. Adding an internal standard into a to-be-detected sample, diluting the to-be-detected human body sample with ultrapure water, and not diluting the to-be-detected sewage sample; a to-be-detected sample PFAS is enriched by using a sampling tube containing an annular adsorption phase, and a to-be-detected solution is obtained through elution, nitrogen blowing, redissolution and filtration. The WAX adsorbent and the HLB adsorbent are combined with the cross-linking agent, so that the contact area and the adsorption efficiency of the adsorption material to PFAS are improved, and the adsorption material is suitable for multiple matrixes such as serum, urine and sewage; sample dilution can reduce protein interference and simplify pretreatment steps; by combining the high performance liquid chromatography-tandem mass spectrometry, the PFAS component and content of the sample can be accurately detected, the materials are easy to obtain, and the cost is low.

Provided are covalent organic frameworks (COFs). The COFs may be used to bind or capture perfluorinated compounds, such as, for example, perfluorooctanoic acid (PFOA). The COFs may assemble and form nanoparticles suitable in methods of the present disclosure. Additionally, COFs may be used as fluorescent indicators to detect perfluorinated compounds, or temperature and / or humidity. COFs of the present disclosure may have the following structure: (I) wherein each R is independently (II) or (III) and each R' is independently (IV) or (V) wherein at least one R is (VI) or (VII) wherein each R is independently (VIII) or (IX) each R' is independently (X) or (XI) wherein at least one R is (XII).

The invention provides a tumor immunodiagnosis and treatment drug AC484-PFC and a preparation method and application thereof, the tumor immunodiagnosis and treatment drug AC484-PFC comprises a drug-loading membrane, glycerin and a perfluorinated compound PFC are wrapped in the drug-loading membrane, and the drug-loading membrane comprises AC484, phospholipid and cholesterol. The medicine has the characteristics of high stability and strong medicine carrying capacity, and can be delivered to tumor tissues through multiple ways such as respiratory tracts or veins. The AC484-PFC prepared by the invention is dynamically monitored through a 1H / 19F magnetic resonance imaging technology, the accumulation and distribution of drugs in a living body are evaluated in real time, in-vivo and non-invasive evaluation of a tumor development state is supported, immunotherapy is accurately guided, and the tumor treatment effect is remarkably improved.

The invention discloses a wastewater perfluorinated compound precursor control method based on anaerobic-aerobic coupling biological enhancement, which comprises the following process steps: S1, monitoring an anaerobic and / or anoxic biological unit in a wastewater treatment system to identify a hotspot unit needing to be regulated; s2, aiming at the identified hotspot unit, implementing one or more of the following coordinated regulation measures for regulation, including regulation of hydraulic retention time, regulation of carbon nitrogen ratio and addition of a specific microbial agent; and S3, introducing the effluent of the hotspot unit regulated and controlled in S2 into a subsequent aerobic activated sludge tank and / or a Fenton advanced oxidation system for treatment. According to the technical scheme, the concentration of the PFCs generated by precursor conversion is reduced by 70% or above compared with that before regulation, and the total load of the PFCs in the effluent of the whole wastewater treatment system is reduced by 65% or above. The whole process depends on optimization of existing process parameters and addition of cheap microbial agents, and the operation cost of the whole process is reduced.

The present invention relates to a functionalized poly- and / or perfluorinated compound treated calcium carbonate, wherein the calcium carbonate is surface treated with at least one functionalized poly- and / or perfluorinated compound, a process for preparing the poly- and / or perfluorinated compound treated calcium carbonate, the use of the poly- and / or perfluorinated compound treated calcium carbonate as a filler and / or a surface coating agent, fillers and surface coating agents comprising the poly- and / or perfluorinated compound treated calcium carbonate, and polymers comprising the poly- and / or perfluorinated compound treated calcium carbonate.

The invention provides a method for evaluating biological accumulation and ecological risks of a PFAS (perfluorooctanoic acid system) of an aquatic ecosystem, and aims to solve the problems caused by difficulty in sampling zooplankton and complex predatory relationship in species in nutritional level calculation and relieve excessive dependence of biological accumulation risk evaluation on toxicological experiments. Two new indexes (RTMF and RBMF) for evaluating the biological accumulation risk of the pollutants are constructed and are applied to evaluating the biological accumulation risk of the perfluorinated compounds in the water area to be evaluated. Results show that the nutrition level calculated by taking the submerged plant as the reference organism is 0.31 higher than the value based on the zooplankton, the difference between the nutrition level amplification coefficient and the biological amplification coefficient calculated by taking the submerged plant as the reference organism and the value based on the zooplankton is not large, and the submerged plant can effectively replace the zooplankton. According to the method, on one hand, the calculation precision of TL, TMF and BMF is remarkably improved, and on the other hand, the operation difficulty of sampling and analysis is effectively reduced.

The invention discloses a method for degrading perfluorinated compounds, which is characterized in that a multi-needle array device is developed, efficient preparation of water free radical cations and clusters thereof is realized on the basis of low-energy environment discharge, and the water free radical cations with high reaction activity react with target pollutants, so that degradation is realized. The method has the advantages of high efficiency, no need of a catalyst, low energy consumption and the like, provides an innovative and efficient technical solution for treatment of persistent organic pollutants in the environment, and has important theoretical significance and application value.

The invention discloses a method for in-situ preparation of a CeO2-based super-hydrophobic corrosion-resistant coating on the surface of a copper-coated steel electrode, and relates to the technical field of material chemistry and electric power engineering, and the method comprises the following steps: pretreating a copper-coated steel sample; preparing an electrolyte containing cerium salt, and electrochemically depositing a CeO2 coating with a porous structure on the surface of the copper-coated steel sample under a constant current condition by adopting a three-electrode system; and the copper-coated steel electrode coated with the CeO2 coating and a long-chain perfluorinated compound are placed in a closed container, heat treatment vapor deposition is carried out, and the super-hydrophobic copper-coated steel material is obtained. According to the method, the problem that a stable and durable super-hydrophobic coating cannot be efficiently and simply prepared on the surface of a copper-coated steel electrode in an existing method is solved, hydrogen bubbles generated by a cathode in the reaction process are directly used as a pore-forming template, and pore-containing deposition of CeO2 is achieved. The copper-clad steel electrode is suitable for an electric grounding system, and the service life of the copper-clad steel electrode is prolonged.

The invention belongs to the technical field of lithium battery electrolytes, and discloses a microemulsion gel electrolyte, a preparation method thereof and a solid-state lithium battery, the microemulsion gel electrolyte is composed of a continuous phase (a solvent, a double lithium salt solute, a monomer and an initiator), an insoluble phase (a perfluorinated compound) and an amphiphilic phase (a fluorine-containing ether compound), the three phases form the microemulsion gel electrolyte with a three-dimensional network structure through microemulsion and thermal polymerization, the process is simple, and large-scale production is easy to realize. According to the electrolyte, fluorine-containing micelles are driven by liquid-liquid interfacial tension to spontaneously migrate to an electrode interface to form a LiF-rich protective layer, and meanwhile, monomers are initiated to directionally polymerize to construct a three-dimensional network structure. Through the synergistic effect, a stable interface under the ultralow electrolyte dosage (0.9 g / Ah) is achieved, the lithium-rich manganese-based positive electrode is matched to assemble a lithium-free negative electrode battery, the energy density reaches up to 698.20 Wh / kg, meanwhile, excellent safety performance is shown, and fire and smoke do not occur in an acupuncture test.

A protective layer, a display device, and an electronic apparatus are provided. The protective layer comprises: a base layer; a first high refractive layer disposed on the base layer and including titanium and niobium; a first low refractive layer disposed on the first high refractive layer and including silicon; a second high refractive layer disposed on the first low refractive layer, the first high refractive layer and the second high refractive layer including the same material; a second low refractive layer disposed on the second high refractive layer, the first low refractive layer and the second low refractive layer including the same material; an anti-fingerprint layer disposed on the second low refractive layer and including a perfluorinated compound; and a metal layer interposed between the first high refractive layer and the first low refractive layer and including aluminum.

The application belongs to the technical field of adsorbing materials of perfluorinated compounds, and discloses fluoridation modified biochar as well as a preparation method and application thereof; the preparation method of the fluoridation modified biochar is as follows: taking a fluorine-containing ionic compound as a modifier, uniformly dispersing the fluorine-containing ionic compound in an aqueous solvent to obtain a modified solution; placing biochar in the modified solution and mixing to obtain a mixed solution; then, the mixed solution is sequentially subjected to oscillation treatment and ultrasonic treatment, and is filtered, washed, dried and ground, so that the fluoridation modified biochar is obtained. The biochar is fluoridation modified by using the fluorine-containing ionic compound, so that the process is simple, the operation is convenient, the adsorption capacity of the prepared product is increased, the removal efficiency of pollutants such as perfluorooctanoic acid in water is improved, and the fluoridation modified biochar has good research value and application prospect in the field of environmental pollution control.