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Microbial Biosensors

Microbial Biosensors

Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...

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Microfluidic Picoliter Bioreactor for Microbial Single-cell Analysis: Fabrication, System Setup, and Operation

Microfluidic Picoliter Bioreactor for Microbial Single-cell Analysis: Fabrication, System Setup, and Operation

Published on: December 6, 2013

How to Build Live-Cell Sensor Microdevices.

Pelagia-Irene Gouma¹

¹Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA.

Sensors (Basel, Switzerland)

|April 28, 2023

Summary

This study introduces a novel live-cell sensor microdevice for detecting airborne pathogens. This innovative biosensor distinguishes between viable and non-viable viruses, offering early pathogen detection in indoor environments.

Keywords:

environmental monitoring live cell sensor pathogen detection scaffold volatolomics

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Area of Science:

Environmental microbiology
Biosensor technology
Pathogen detection

Background:

Viruses like influenza and SARS-CoV-2 spread through aerosols and droplets, necessitating environmental monitoring.
Current methods like RT-PCR and antigen tests often fail to differentiate between infectious and non-infectious viral particles.
Accurate detection of viable pathogens is crucial for public health and environmental safety.

Purpose of the Study:

To present an innovative live-cell sensor microdevice for detecting airborne pathogens.
To develop a method that can differentiate between viable and non-viable viruses and bacteria.
To outline the components and processes for implementing living sensors in built environments for pathogen surveillance.

Main Methods:

Development of a microdevice utilizing live-cell sensors.
The sensor captures airborne viruses and bacteria.
Infection of the sensor triggers a signal indicating pathogen presence.

Main Results:

The live-cell sensor microdevice successfully captures and detects airborne pathogens.
The system provides an early warning signal for the presence of active infectious agents.
Demonstrates potential for differentiating viable from non-viable pathogens.

Conclusions:

Live-cell sensor microdevices offer a disruptive approach to pathogen monitoring.
This technology can provide real-time detection of viable airborne pathogens in indoor environments.
Future applications include using immune sentinels for monitoring indoor air pollutants.