Figure 2.
SEM images of spray-dried propolis microparticles showing the outer topology: (a) original magnification ×1000; (b) original magnification ×2000.
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.