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Related Concept Videos

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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Quantification of Heavy Metals and Other Inorganic Contaminants on the Productivity of Microalgae
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Harmful Microalgae Detection: Biosensors versus Some Conventional Methods.

Jeremy Jason Chin Chwan Chuong1, Mahbubur Rahman2,3, Nadiah Ibrahim1

  • 1Southeast Asia Disaster Prevention Research Initiative (SEADPRI), Institute for Environment and Development (LESTARI), Universiti Kebangsaan Malaysia, Bangi 43600, Selangor Darul Ehsan, Malaysia.

Sensors (Basel, Switzerland)
|May 20, 2022
PubMed
Summary
This summary is machine-generated.

Biosensors offer a rapid and sensitive alternative to traditional laboratory methods for detecting harmful algal blooms (HABs). Nanomaterial-based biosensors show enhanced detection limits and linear ranges for effective HAB event management.

Keywords:
HAB detection methodbiosensorconventional methodharmful algaenanomaterialred tide

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Area of Science:

  • Environmental Science
  • Analytical Chemistry
  • Biotechnology

Background:

  • Conventional methods for harmful algal bloom (HAB) detection, such as microscopy and molecular techniques, are time-consuming, labor-intensive, and require extensive sample preparation.
  • These laboratory-based approaches often lack the speed and simplicity needed for real-time monitoring and rapid response to HAB events.

Purpose of the Study:

  • To review and compare conventional methods with emerging biosensor technologies for the detection of harmful algae species.
  • To highlight the advantages of biosensors, particularly those incorporating nanomaterials, for improved HAB detection.
  • To discuss the future prospects of biosensor technology in HAB management.

Main Methods:

  • Review of existing literature on conventional harmful algal detection techniques (microscopy, molecular methods).
  • Analysis of current biosensor approaches for HAB detection, focusing on nanomaterial-enhanced systems.
  • Comparative assessment of detection limits, assay times, and operational requirements.

Main Results:

  • Biosensors provide a faster and simpler alternative to conventional laboratory-based HAB detection methods.
  • Nanomaterial integration in biosensors significantly enhances detection limits and broadens the linear range due to high surface area and signal amplification.
  • Conventional methods are limited by long assay times, need for skilled personnel, and complex sample preparation.

Conclusions:

  • Biosensor technology holds significant promise for rapid and sensitive detection of harmful algae species.
  • Nanomaterial-based biosensors represent a key advancement, offering superior performance for HAB monitoring.
  • The development and implementation of biosensors are crucial for effective HAB event management and mitigation.