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Microbial Biosensors01:17

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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CRISPR Biosensing for Environmental Monitoring: Workflow Design and Performance Benchmarking.

Siwen Wang1, Rakibul Hasan1

  • 1Department of Civil and Environmental Engineering, Clarkson University 8 Clarkson Avenue, Potsdam, New York 13699, United States.

Environmental Science & Technology
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Summary
This summary is machine-generated.

CRISPR-based biosensing offers specific environmental monitoring, but challenges remain in diverse matrices. This review guides the selection of CRISPR systems for effective environmental contaminant detection.

Keywords:
CRISPR–Casbiosensingenvironmental monitoringregulatory thresholdsample pretreatmentworkflow design

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Area of Science:

  • Environmental Science
  • Biotechnology
  • Analytical Chemistry

Background:

  • CRISPR-based biosensing shows promise for environmental monitoring due to specificity and programmability.
  • Translating these systems to environmental samples is difficult due to complex matrices and diverse targets.

Purpose of the Study:

  • To comprehensively review CRISPR-based sensing technologies for environmental contaminant detection.
  • To provide a framework and design flowchart for practical environmental CRISPR sensing applications.

Main Methods:

  • Systematic evaluation of published studies on CRISPR environmental sensing.
  • Analysis across target classes, Cas effectors, sample matrices, and performance metrics.
  • Benchmarking detection limits and comparing amplification strategies.

Main Results:

  • Most studies use spiked-matrix validation, indicating a need for real-world sample testing.
  • A five-step framework and design flowchart are proposed for practical implementation.
  • Standardized data reporting is crucial for cross-study comparison.

Conclusions:

  • CRISPR biosensing holds significant potential for environmental monitoring.
  • Standardization in reporting and validation is needed to accelerate real-world deployment.
  • Further research should focus on non-spiked matrix validation and transparent reporting.