Method for preparing water-dispersing molecular imprinting fluorescent nanoparticles based on macromolecule self-assembling
A technology of molecular imprinting and fluorescent nanometers, applied in chemical instruments and methods, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve problems such as complex preparation process, limited application in detection field, inability to identify target molecules, etc., to achieve The effect of high selectivity, widening the preparation and application environment, and fast adsorption speed
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[0021] Example 1
[0022] The first step: add the monomer acrylic acid (0.3603g, 5mmol), vinyl carbazole (0.9663g, 5mmol), azobisisobutyronitrile (0.0328g, 2% mt%) into a 50ml round bottom flask, add the solvent N,N-Dimethylformamide (DMF) 15mL, pass N 2 After removing oxygen in the solution for 20 minutes, under stirring, the temperature was kept at 80 ℃ and reacted in an oil bath for 24 hours. The monomer ethylene glycol methacrylate (0.711g, 5mmol) and triphenylphosphine (0.0262g, 0.1mmol) and hydroquinone (0.0028g, 0.025mmol) were dissolved in 5mL DMF, and they were added dropwise to the above polymer solution through a constant pressure dropping funnel. Under stirring, the temperature was kept at 95℃. React in a bath for 12 hours, precipitate with petroleum ether three times, and dry overnight in a vacuum oven at 40°C to obtain a photosensitive fluorescent polymer;
[0023] Step 2: Dissolve 10mg of the above polymer in the good solvent DMF, and add 10μL of paracetamol in DMF...
Example Embodiment
[0025] Example 2
[0026] The first step: add the monomer acrylic acid (0.7206g, 10mmol), vinyl carbazole (0.9663g, 5mmol), azobisisobutyronitrile (0.0328g, 2% mt%) into a 50ml round bottom flask, add the solvent N,N-Dimethylformamide (DMF) 15mL, pass N 2 After removing the oxygen in the solution for 20 minutes, under stirring, the temperature was kept at 90°C and reacted in an oil bath for 24 hours. The monomers ethylene glycol methacrylate (1.422g, 10mmol) and triphenylphosphine (0.0262g, 0.1mmol) and hydroquinone (0.0028g, 0.025mmol) were dissolved in 5mL DMF and added dropwise to the above polymer solution through a constant pressure dropping funnel. Under stirring, the temperature was kept at 95℃. React in a bath for 12 hours, precipitate with petroleum ether three times, and dry overnight in a vacuum oven at 40°C to obtain a photosensitive fluorescent polymer;
[0027] Step 2: Dissolve 10mg of the above polymer in the good solvent DMF, and add 10μL of paracetamol in DMF sol...
Example Embodiment
[0029] Example 3
[0030] The first step: add monomer methacrylic acid (0.4403g, 5mmol), vinylcarbazole (1.9326g, 10mmol), azobisisobutyronitrile (0.0328g, 2% mt%) into a 50ml round bottom flask, Add 15mL of solvent N,N-dimethylformamide (DMF), pass N 2 After removing oxygen in the solution for 20 minutes, under stirring, the temperature was kept at 80 ℃ and reacted in an oil bath for 24 hours. The monomer ethylene glycol methacrylate (0.711g, 5mmol) and triphenylphosphine (0.0262g, 0.1mmol) and hydroquinone (0.0028g, 0.025mmol) were dissolved in 5mL DMF and added dropwise to the above polymer solution through a constant pressure dropping funnel. Under stirring, the temperature was kept at 105°C. React in a bath for 12 hours, precipitate with petroleum ether three times, and dry in a vacuum oven at 40°C overnight to obtain a photosensitive fluorescent polymer;
[0031] Step 2: Dissolve 10mg of the above polymer in the good solvent DMF, and add 10μL of paracetamol in DMF solution ...
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