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 comparison of dose-response curves for ultrasound-released spermine NONOate with free spermine NONOate. The vascular relaxation responses elicited by free spermine NONOate (10−9 to 10−5 M, circles) were plotted against spermine NONOate released by ultrasound from microbubble conjugates (squares). Each curve represents the mean ± SEM of 5 different experiments.
