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.
Responses of SWNTs chemiresistive label-free biosensor for different metal ions. The concentrations of the metal ions were 1 μM and incubation period was 30 min. Each data point is an average of measurements from four independent sensors at different point of time and the error bars represent ±1 standard deviation.
