# A New Sensitive Sensor Test for Capturing and Evaluating Bacteria and Viruses in Airborne Aerosols

## TL;DR

This paper introduces a new sensor test that can detect airborne bacteria and viruses by using their unique electromagnetic properties.

## Contribution

The paper presents a novel EMHD model and methodology for detecting low-concentration airborne bacteria and viruses.

## Key findings

- The EMHD model was validated using Bacillus subtilis and feline infectious peritonitis virus aerosols.
- The sensor system successfully captured and detected microorganisms based on their physical properties.
- Repeated tests confirmed the reliability of the method under laboratory conditions.

## Abstract

Why can’t viruses be captured by the currently known bacteria detection devices? This question can be answered by the uniqueness of the electromagnetic properties of microorganisms and organic nanoparticles. The basic parameter for capturing these substances, the electric field, is the interaction with the electric field of the sensor system, the electric charge of the substance. This affects the development of methods and metrology, the results and quality of capture measurements and the evaluation of tested substances.

In this paper, the authors describe an electromagnetic–hydrodynamic (EMHD) model of the airborne microbiological agent detection concept for the design of a sensor to identify the presence of airborne bacteria and viruses. Based on the model and a laboratory test, a methodology was proposed for the capture and subsequent detection of low-concentration bacterial and viral agents in airborne aerosols. A physical–biological approach was proposed to detect microorganisms based on their physical properties. The principle was validated in the laboratory on samples of defined concentrated water aerosols of Bacillus subtilis (BS) and feline infectious peritonitis virus (FIVP). Repeated tests with different concentrations were performed in the laboratory conditions.