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.
Effect of aging on the dissolution behaviors in different dissolution media for the microspheres prepared with an external to internal phase volume ratio of 5:1. Release study in pH 1.2 HCl solution: closed triangle freshly prepared microspheres; closed square aged microspheres. Release study in pH 7.4 PBS solution: open triangle freshly prepared microspheres; open square aged microspheres
