Ammonia nanosensors, and environmental control system

A method for controlling the operation of a sensor in monitoring an analyte in a sample environment, comprising:

• (a) biasing a sensor using a fractional duty cycle;
• and
• (b) dynamically sampling a response signal output from the sensor to determine the presence or concentration of the analyte by analysis of the dynamically sampled signal, wherein the dynamic sampling depends on the concentration of the analyte such that a specific sampling mode is applied in response to the presence of a predetermined concentration of analyte.

A method for controlling the operation of a sensor in monitoring an analyte in a sample environment, comprising:

• (a) applying a multiplex fluid flow sequence to the sensor during reagent exposure to generate a dynamic response signal output, wherein applying a multiplex fluid flow sequence comprises biasing a sensor electrode using a fractional duty cycle;
• (b) analyzing the dynamic response signal output from the sensor to determine the presence or concentration of the analyte.