Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

295 results about "Toxication" patented technology

Toxication or toxification is the conversion of a chemical compound into a more toxic form in living organisms or in substrates such as soil or water. The conversion can be caused by enzymatic metabolism in the organisms, as well as by abiotic chemical reactions. While the parent drug are usually less active, both the parent drug and its metabolite can be chemically active and cause toxicity, leading to mutagenesis, teratogenesis, and carcinogenesis. Different classes of enzymes, such as P450-monooxygenases, epoxide hydrolase, or acetyltransferases can catalyze the process in the cell, mostly in the liver.

Method and device for selecting optimal emergency evacuation route for hazardous chemical enterprise

PendingCN108491984ALow risk of personal poisoningAvoid blindnessForecastingAlarmsDiffusionSimulation
The invention discloses a method and device for selecting an optimal emergency evacuation route for a hazardous chemical enterprise. A leakage condition of a hazardous chemical enterprise and a jointdistribution probability of a wind farm are received, a real leakage scene set is constructed to carry out leakage simulation, gas concentrations of all preset monitoring points in all leakage scenesare recorded in real time, and a possible leakage diffusion region is determined; whether the gas concentrations of all to-be-evacuated sites in different leakage scenes reach a preset alarm thresholdis determined and the leakage scenes that may trigger alarming are used as evacuation scene sets of the to-be-evacuated sites; evaluation routes are determined and the evaluation routes connecting random route outlet points at accumulated boundaries of all possible leakage diffusion regions are selected from the determined evaluation routes to form a standby evaluation route set; and personnel toxication risks of all evacuation scenes of the standby evaluation routes are calculated to obtained an accumulated individual toxication risk, traversing of the standby evaluation route set is carriedout, and an optimal evacuation route is obtained by using a minimum accumulative individual toxication risk as an optimization function. Therefore, the blindness of the evacuation route selection iseffectively eliminated and the success rate of evacuation is greatly improved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Anti-intoxication, alcohol-expelling and liver-protection preparation and preparation process thereof

The invention provides an anti-intoxication, alcohol-expelling and liver-protection preparation which has the functions of anti-intoxication, alcohol-expelling and auxiliary protection on alcoholic liver injury. The preparation consists of the following raw materials: 20-50 parts of vine tea, 5-15 parts of galangal, 10-40 parts of mung beans and 10-40 parts of poria cocos. The vine tea contains a great amount of flavonoid substances, and the dihydromyricetin in the vine tea has special effects in removing toxicity in alcohol, preventing alcoholic liver and fatty liver, inhibiting liver cell deteriorate, reducing the morbidity of liver cancer and protecting the liver. The galangal is acrid and hot in property, can enter the spleen and stomach channels, has the functions of eliminating cold to stop pain and warming the middle energy and stopping throwing and has a certain alcohol-expelling function, and moreover the flavonoid substance galangin in the galangal has a protection function on acute alcoholic liver injury. The poria cocos has the effects of clearing damp and promoting dieresis, tonifying spleen and quieting the heart, can promote the alcohol in bodies to discharge out along with urine, and is beneficial to sobering up. The mung beans have the effect of clearing away heat and toxic materials, can effectively relieve the symptoms of dizziness and unclear speaking after drinking alcohol, and furthermore has the pharmacologic action of protecting the liver and the kidney.
Owner:GANSU LONGSHENRONGFA PHARMACEUTICAL INDUSTRY CO LTD

Benzimidazole zinc complex and preparation method thereof

The invention relates to a benzimidazole zinc complex and a preparation method thereof. A chemical name of the benzimidazole zinc complex is dichloro-2-(2-(1H-benzimidazole-2-)benzyl)-1H-benzimidazole zinc complex. The preparation method includes following steps: mixing 2-(carboxymethyl)benzoic acid with o-phenylenediamine, placing the mixture in phosphoric acid, performing a heating process at 180 DEG C for 3 hours to obtain a purple-green reactant, cooling the reactant to room temperature, adding distilled water, performing a neutralization reaction to obtain a yellow-green solid, performing a washing process through distilled water for three times, carrying out a filtering process, carrying out a recrystallization process through alcohol to obtain a yellow-green solid 2-(2-(1H-benzimidazole-2-)benzyl)-1H-benzimidazole, namely a ligand, dissolving ZnCl2 and the ligand 2-(2-(1H-benzimidazole-2-)benzyl)-1H-benzimidazole in a proper amount of a DMF solvent to obtain a mixture, stirring the mixture uniformly at room temperature, performing a volatilization process for seven days to obtain a slight yellow-green block-shaped complex monocrystal. The complex employs biological non-toxic element zinc as a metal ion, can be used for preparing antitumor drugs, can inhibit generation of esophagus cancer cells, and is free from remaining in human body and causing poisoning in human body due to metal accumulation. The complex is simple in the preparation method, is high in yield, is low in cost and is suitable for an industrial production.
Owner:ZHANJIANG NORMAL UNIV

Method for enriching and separating trace amount of polychlorinated biphenyls (PCBs)

The invention relates to a method for enriching and separating a trace amount of polychlorinated biphenyls (PCBs). According to the method, a trace amount of the PCBs in an environmental sample are enriched by a modified solid-phase microextraction column by a combining a method that a trace amount of the PCBs are subjected to linkage separation by a double column gas chromatography-electron capture detector, and then are eluted and detected. Compared with the prior art, the method has the advantages that: a macromolecule fixed phase of the solid-phase microextraction column is modified, a solid-phase microextraction technology is combined with the gas chromatography-electron capture detector, sampling, extraction, concentration, sample separation, and detection are combined into a simpleprocess, automaton is easy to realized, the amount of the pre-enriched samples and the detection time are reduced, and the effect of enriching the PCBs is improved; the nature is determined by a double chromatographic column, and PCB monomers with different polarities and structures are separated; the method has the advantages of high analysis speed, low manufacturing cost, and high detection sensitivity and specificity and the like, and is easy to operate; instruments are portable; and the detection limit of the coplanar PCB monomers in water can reach 10<-8> to 10<-7> mol / L, and the field test of residues of toxication forms of six kinds of main PCBs can be realized.
Owner:NINGBO UNIV

Preparation method of surface hard protective film for guide wire/tunnel needle used in peritoneal dialysis catheter insertion

The invention relates to the field of film preparation, in particular to a preparation method of a surface hard protective film for a guide wire / tunnel needle used in peritoneal dialysis catheter insertion. In the method, by utilizing a magnetron sputtering or arc ion plating deposition device, high-purity Ti is selected as a target material and high-purity Ar and N<2> are taken as working gas, and a TiN or TiN+Ti single layer protective film and a TiN+Ti multilayer protective film are deposited on the surface of the guide wire / tunnel needle used in the peritoneal dialysis catheter insertion so as to improve wear resistance, resistance to high-temperature and high-pressure sterilization, resistance to corrosion caused by disinfectant, bacterial resistance and biocompatibility of the guidewire / tunnel needle. By utilizing the preparation method, problems of the guide wire / tunnel needle used in the peritoneal dialysis catheter insertion such as local surface fall-off and patient infection and toxication resulting from high-temperature and high-pressure sterilization and soakage in disinfectant for a plurality of times are effectively solved.
Owner:沈阳市红十字会医院

Deslagging method for continuous production of methyl isocyanate

The invention discloses a deslagging method for continuous production of methyl isocyanate. The method comprises the following steps: installing a deslagging machine below an air and liquid separator; performing air and liquid separation on a methyl isocyanate solution obtained by reaction by using the air and liquid separator; condensing a gas phase component and then rectifying and purifying to obtain a methyl isocyanate product; putting a liquid phase component in the deslagging machine and automatically removing tripolymethyl isocyanate solid slags; and returning the rest unreacted methyl carbamyl chloride, a trichloromethane solvent and a small amount of the methyl isocyanate product to a liquid mixing tank from the outlet of the deslagging machine and further reacting. The method disclosed by the invention can be used for automatically removing solid slags generated in the continuous production of the methyl isocyanate, realizing integration of deslagging and dry-recycle by adopting the deslagging machine, completely preventing direct contact between toxic materials and a person, reducing the labor strength, reducing toxication accidents, effectively evaporating residual volatile components such as raw materials, products and solvents in the solid slags and increasing the total yield of the products and the recycle rate of the solvents.
Owner:海利贵溪新材料科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products