Decision Diagnostics Corp (DECN)

[HFM2]

In 2015, it was believed that E.I.S may be able to compete with PCR (RNA) in terms of accuracy.

"The results nevertheless show that the proposed nonlinear impedance spectroscopy method may achieve a sensitivity comparable to that of PCR and immunodetection systems. The response time to sweep the frequency for each measurement was about a few minutes, which will be enough fast for the continuous monitoring of environment. One of the large remaining issues is to evaluate the detection and identification ability of some specific viruses from the heterogeneous mixture of crude sample. That is the universal challenge for any types of biosensing methods, and also the future work to put this method into practical use."

https://www.frontiersin.org/articles/10.3389/fmicb.2015.00940/full

Assuming, five years later, that more research, published or not, has been ongoing - who knows where the issue stands now? Maybe someone took up that "universal challenge"!