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–b) Schematic illustrations of a close-open paraffin microvalve design. (c–e) An open-close-open microvalve design. (f) A photograph of a PCR chamber surrounded by five paraffin-based microvalves: valves 1–3 are open-close valves, and valves 4 and 5 are close-open valves. Reprinted with permission from [72]. Copyright 2004 American Chemical Society.
