FIELD: chemistry.
SUBSTANCE: invention relates to a method of making a nanosised system for delivering met-enkephalin on a hydrosol of SiO2 nanoparticles, involving mixing distilled water, hydrochloric acid and tetraethoxysilane, addition of a prepared NaOH solution, evaporation and filtration, obtaining a SiO2 hydrosol, ultrasonic treatment of the obtained SiO2 hydrosol, addition of met-enkephalin and surfactant solution in amount ranging from 0.5 to 2% of total volume of the obtained system.
EFFECT: system of delivering met-enkephalin is capable of penetrating the hematoencephalic barrier and deliver medicinal agents to brain cells.
2 ex, 2 tbl
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Authors
Dates
2009-11-20—Published
2007-10-03—Filed