Figure 4.
(a) Four cycles of response–recovery characteristics of m-Z–S nanofibers exposed to different ethanol concentrations, and (b) sensitivity versus ethanol concentration in the range 5–10 000 ppm.
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.