Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Bright-field microscopy image of the spray-dried lecithin NP powders. Inset: Scanning electron microscopy image of the powders. The mass ratio between lecithin NPs and mannitol is 1:3. (b) Microscopy image of the aqueous suspension after reconstitution of spray-dried powders with DI water. Inset: Microscopy image with a larger magnification (40×).
