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.
Storage stability of tissue plasminogen activator (tPA) and tPA bound to silica-coated magnetic nanoparticles (SiO2-MNP-tPA).
Notes: The residual amidolytic activity after incubation in phosphate-buffered saline at 4°C for time indicated was determined by chromogenic substrate assay. Relative activity was defined as percentage activity of tPA and SiO2-MNP-tPA, respectively, at day 0.
