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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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Related Experiment Video

Updated: Jul 16, 2026

In Situ Detection of Bacteria within Paraffin-embedded Tissues Using a Digoxin-labeled DNA Probe Targeting 16S rRNA
11:15

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Recent advances in nanomaterial-based biosensor for periodontitis detection.

Mohammad Hosseini Hooshiar1, Masoud Amiri Moghaddam2, Mohammad Kiarashi3

  • 1Department of Periodontology, Tehran University of Medical Sciences, Tehran, Iran.

Journal of Biological Engineering
|April 18, 2024
PubMed
Summary

Nanoparticle-based strategies offer a promising avenue for early periodontitis detection. These advanced methods utilize unique nanoparticle properties for rapid and efficient diagnosis of this chronic inflammatory gum disease.

Keywords:
BiomarkersDetectionNanobiosensorsNanoparticlesPeriodontitis

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Area of Science:

  • Biomaterials Science
  • Nanotechnology
  • Periodontology

Background:

  • Periodontitis is a chronic bacterial inflammatory disease leading to tooth loss.
  • Current diagnostic methods lack insight into disease activity and treatment response.
  • Technological advancements drive the search for novel diagnostic and monitoring tools.

Purpose of the Study:

  • To summarize recent developments in nanoparticle (NP)-based periodontitis detection.
  • To highlight the potential of NPs in creating rapid and efficient diagnostic assays.

Main Methods:

  • Review of nanoparticle applications in periodontitis detection.
  • Focus on plasmonic nanoparticles (metal NPs, QDs, carbon NPs, nanozymes) and fluorescent NPs.
  • Exploration of NP characteristics for labeling, spectroscopy, and sensor development.

Main Results:

  • Nanoparticles offer unique properties for sensitive and specific periodontitis detection.
  • Plasmonic NPs enable applications in labeling, spectroscopy, and colorimetric sensing.
  • Fluorescent NPs provide photostable and sensitive tools for biological target identification.

Conclusions:

  • Nanoparticle-based detection strategies represent a significant advancement in periodontitis diagnostics.
  • These methods promise quicker, more efficient, and insightful disease monitoring.
  • Further research into NP applications can revolutionize periodontitis management.