| abstract |
It comprises: adding a cryoprotective agent into an aqueous dispersion of the cited nanocapsules maintaining gentle stirring until the same dissolves totally. Afterwards, the dispersion thus obtained is subjected to freezing at a temperature no lower than -40º C for about 2 to 4 hours, and, finally, eliminating the water by heating it progressively to a temperature of about 35º C and at reduced pressure, whereby a stable lyophilized product is obtained. It can be conveniently reconstituted by adding water or a more complex aqueous solution to it. n Nanocapsules are used in medicine, pharmacy, cosmetics, chemical industry, agriculture, veterinary science, etc. |