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\subsubsection{\texorpdfstring{Universal parameters for CNT network-based sensors}{Universal parameters for CNT networkbased sensors}}
\label{sec:universal_parameters_for_cnt_networkbased_sensors}


Carbon nanotube (CNT) network-based sensors have been often considered
unsuitable for practical applications due to their unpredictable
characteristics. Herein, we report the study of universal parameters
which can be used to characterize CNT network-based sensors and make
their response predictable. A theoretical model is proposed to explain
these parameters, and sensing experiments for mercury
(Hg\textsuperscript{2+}) and ammonium (NH\textsubscript{4}\textsuperscript{+}) ions using
CNT network-based sensors were performed to confirm the validity of
our model.

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