Oil-in-water microemulsion prepared as a template layer assembly technique using microencapsulation method

Oil-in-water microemulsion as template layer assembly technique using the method of preparing microcapsules, micro belonging to the field of nanotechnology. The method: preparing an oil-in-water microemulsion; suspensions prepared positively charged polyelectrolyte-modified PS (polystyrene) beads or carboxyl Fe3O4 magnetic nanoparticles; oil-in-water microemulsion as template preparing microspheres capsule. The present invention utilizes an electrostatic interaction between the polyelectrolyte oil in water was prepared for the microcapsule layer assembly microemulsion template, this simple procedure, mild conditions, can freely control the thickness of the wall of the microcapsules, micro-prepared capsule wall stable, organic solvents, acids, alkali, high temperature stability. When applied as toluene, chloroform and the like as a template can be easily removed with ethanol and with evaporation method, and by a simple operation will be other water soluble drug loading in the microcapsules; and when the application is a vegetable oil or other natural oils with a non-toxic It was used directly without removing the fat-soluble drug loading.