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.
Unsuccessful microvesiculation. Images are a semi-sphere with bleeding Ficoll from inserted microneedle (A), immediately (B), and 10 s after the needle was pulled out (C). Sometimes, a tether connecting the inner and outer membranes could be seen (D). Bar = 50 μm.
