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.
(Top) Intravascular ultrasound images of 0.1 M phosphate buffer (left; control) and highly echogenic liposomes (right; 10 mg lipid/mL buffer) in a 10 mL glass vial. (Bottom) Freeze fracture electron microscopy of a liposome formulation that is poorly acoustically active (left) and highly acoustically active (right). Note the spheres within the acoustically active formulation vs. the single outer layer of the non-acoustically active formulation. Arrows point to the membrane.
