4 results about "Diphenyl phosphite" patented technology

The invention discloses an imidazolyl lipid assembly as well as a preparation method and application thereof, and relates to the technical field of biomedical materials. The preparation method comprises the following steps: mixing diphenyl phosphate, alcohol and pyridine, and heating for reaction to obtain alkyl phosphate; mixing N, N-diethylethylenediamine, 5-imidazole formaldehyde and a solvent, carrying out a heating reaction in a protective atmosphere, then adding the alkyl phosphate, and continuing the heating reaction to obtain an imidazolyl lipid molecule; dissolving the imidazolyl lipid molecules in an organic solvent to obtain a mother solution; the imidazolyl lipid assembly is obtained from the mother liquor through a film hydration method. The imidazole-based lipid assembly constructed by the invention can utilize the imidazole group to destroy the normal structure of bacteria under the condition of no antibiotic load, and utilizes the catalytic action of the imidazole group to complete the destroy of a biological membrane matrix and an inflammation activation medium, so that the synergism of antibiosis and anti-inflammation is realized, and the imidazole-based lipid assembly has the effect of buffering local acidic pH.

In order to improve the high-temperature durability and safety of the lithium manganese iron phosphate battery, the invention provides the lithium manganese iron phosphate battery electrolyte and the lithium manganese iron phosphate battery, the electrolyte comprises an organic solvent, a lithium salt and an additive, and the additive comprises N, N-dimethyl sulfonamide and diphenyl phosphate. N, N-dimethyl sulfonamide and diphenyl phosphite are added into the electrolyte, and the N, N-dimethyl sulfonamide and diphenyl phosphite cooperate to inhibit dissolution of manganese ions in the lithium manganese iron phosphate battery, relieve swelling of the battery at high temperature, improve the high-temperature capacity retention ratio of the battery and prolong the high-temperature cycle life of the battery, so that the market competitiveness of the lithium manganese iron phosphate battery is improved; and a more reliable and efficient energy solution is provided for electric automobiles, energy storage systems and consumer electronics.

This invention belongs to the field of inorganic nanoparticle technology, and discloses a silicon-phosphorus-containing inorganic nanoparticle, its preparation method, and its application. The silicon-phosphorus-containing inorganic nanoparticle is prepared from inorganic nanoparticles, a phosphorus-containing compound, and a silane coupling agent. The inorganic nanoparticles are selected from at least one of nano-ZrO2, nano-CaCO3, nano-SiO2, and nano-TiO2. The phosphorus-containing compound is selected from at least one of dimethyl phosphite, diethyl phosphite, and diphenyl phosphite. The silane coupling agent is selected from γ-glycidoxypropyltrimethoxysilane and / or γ-glycidoxypropyltriethoxysilane. The silicon-phosphorus-containing inorganic nanoparticles of this invention, due to surface modification, have significant steric hindrance, are not prone to aggregation, and can be well dispersed in a matrix. The inorganic nanoparticles contain silicon and phosphorus, and have a certain flame-retardant effect.

The invention discloses a cyanine fluorescent compound as well as a preparation method and application thereof, and belongs to the technical field of fine chemical engineering. The structure of the cyanine fluorescent compound is shown as a formula (I), and the cyanine fluorescent compound can be used for detecting ONOO. The luminescent mechanism of the cyanine fluorescent compound is an intramolecular charge transfer (ICT) mechanism, the emission wavelength is 800nm, the cyanine fluorescent compound is connected with a diphenyl hypophosphite group, in the presence of peroxynitrite ONOO, the diphenyl hypophosphite group leaves through a high-selectivity addition-elimination way, the ICT effect is changed, the emission wavelength is blue-shifted to 633nm, and the cyanine fluorescent compound has the advantages that the fluorescence intensity of the cyanine fluorescent compound is improved; ratio-type fluorescence detection of ONOO is realized, and the detection limit reaches 0.57 mu M. (I)