On Sensing Principles Using Temporally Extended Bar Codes
01 Jul 2020-IEEE Sensors Journal (Institute of Electrical and Electronics Engineers (IEEE))-Vol. 20, Iss: 13, pp 6782-6791
TL;DR: A novel idea for training chemical sensors to recognise patterns of ionic variations by using an external voltage signal to output distinct time-series signals depending on the state of the ionic solution is introduced.
Abstract: The detection of ionic variation patterns could be a significant marker for the diagnosis of neurological and other diseases. This paper introduces a novel idea for training chemical sensors to recognise patterns of ionic variations. By using an external voltage signal, a sensor can be trained to output distinct time-series signals depending on the state of the ionic solution. Those sequences can be analysed by a relatively simple readout layer for diagnostic purposes. The idea is demonstrated on a chemical sensor that is sensitive to zinc ions with a simple goal of classifying zinc ionic variations as either stable or varying. The study features both theoretical and experimental results. By extensive numerical simulations, it has been shown that the proposed method works successfully in silico . Distinct time-series signals are found which occur with a high probability under only one class of ionic variations. The related experimental results point in the right direction.
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...IONIC variations have been reported to be highly correlated with neurological and other diseases [1]–[4]....
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