4 results about "Pyrylium salt" patented technology

The application provides a static spinning solution containing pyridinium propane sulfonate, a preparation method thereof and a static spinning method thereof. The static spinning solution comprises an additive pyridinium propane sulfonate, PAN polyacrylonitrile and DMF. Experiments prove that the static spinning solution has low cost, can improve the entanglement degree between molecular chains, inhibits the breakage of a solution jet in a static spinning process, and the micro-morphology is improved.

The application provides a monovalent ionic liquid fiber membrane, a preparation method and application in recovery of palladium, and belongs to the technical field of adsorbing materials, and comprises the following steps: mixing dichloromethane and acetic acid to obtain a first solution; dissolving cellulose acetate and ionic liquid in the first solution to obtain a second solution; the ionic liquid is any one of an alkenyl imidazole salt, a quaternary ammonium salt containing an alkenyl group, a quaternary phosphonium salt containing an alkenyl group, a pyridine salt containing an alkenyl group or a morpholine salt containing an alkenyl group; N,N'-methylene bisacrylamide and benzoyl peroxide are added into the second solution, heated, stirred and warmed to obtain a third solution, and the third solution is subjected to high-pressure electrospinning to obtain the monovalent ionic liquid fiber membrane; or the second solution is subjected to high-pressure electrospinning and then irradiation to obtain the monovalent ionic liquid fiber membrane. The monovalent ionic liquid fiber membrane prepared by the application can realize rapid adsorption and easy regeneration and desorption, and can efficiently and selectively adsorb and recover palladium from a complex acidic solution.

Chemical compounds that include a pyridinium-based compound functionalized by including a sulfur-containing substituent are provided. Also provided are materials and formulations including such pyridinium-based compounds. Also provided are corrosion-resistant substrates and films including such pyridinium-based compounds. Also provided are processes for inhibiting corrosion of a metallic surface using the formulations and processes of acidizing a subsurface formation using the pyridinium-based compounds.

This invention discloses a hypochlorous acid and hydrogen peroxide dual-response fluorescent probe compound based on a phenothiazine skeleton, its synthesis method, and its applications. The probe is prepared by nucleophilic addition reaction of phenothiazine with pyridinium salt of 4-cyanomethylphenylboronic acid, using phenothiazine as the core skeleton. The probe exhibits high sensitivity and selectivity for hypochlorous acid and hydrogen peroxide, with detection limits of 0.04 μM and 0.13 μM, respectively. The fluorescence emission wavelength difference between the two response channels reaches 220 nm, enabling simultaneous detection through both channels. This probe can monitor changes in endogenous and exogenous hypochlorous acid and hydrogen peroxide levels in living cells in real time and in situ, and has been successfully applied to the detection of biological processes such as ferroptosis, drug-induced liver injury, and oxidative stress. Furthermore, this probe can also be used for the quantitative detection of hypochlorous acid and hydrogen peroxide content in food and water samples, showing broad application prospects in the fields of biosensing, disease diagnosis, and food safety testing.