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Microbial Biosensors

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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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Two-Dimensional Material-Based Colorimetric Biosensors: A Review.

Danzhu Zhu¹, Bin Liu¹, Gang Wei¹

¹College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.

|August 26, 2021

Summary

This summary is machine-generated.

This review highlights advances in two-dimensional (2D) material-based colorimetric biosensors. These high-performance sensors offer advantages for rapid bioanalysis and disease diagnostics.

Keywords:

2D materials colorimetric biosensors hybrid materials nanoparticles nanozymes

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Area of Science:

Materials Science
Nanotechnology
Biotechnology

Background:

Two-dimensional (2D) materials possess unique properties ideal for sensor development.
Colorimetric biosensors offer advantages like naked-eye detection and low cost over traditional methods.

Purpose of the Study:

To review recent advances in 2D material-based colorimetric biosensors.
To discuss design, fabrication, and applications of these advanced biosensors.

Main Methods:

Review of literature on 2D materials (graphene, MXene, etc.) for colorimetric biosensing.
Analysis of sensing mechanisms, material selection, and fabrication techniques.
Discussion of applications in detecting DNA, proteins, viruses, and ions.

Main Results:

2D materials enable high-performance colorimetric biosensors.
Various 2D materials are suitable for sensitive detection of diverse analytes.
Hybrid materials and nanozymes enhance sensor capabilities.

Conclusions:

2D material-based colorimetric biosensors show great promise for quick bioanalysis.
This field is crucial for advancing disease diagnostics and point-of-care testing.