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Related Concept Videos

Microbial Biosensors01:17

Microbial Biosensors

48
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...
48

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A Programmable Plug-and-Play Sensing Platform for Ultrasensitive Detection via Adaptive Supramolecular Assembly.

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Summary
This summary is machine-generated.

This study introduces a versatile polypeptoid-based sensing platform for detecting multiple analytes like dipicolinic acid and tetracycline. The system offers rapid, accurate detection and real-time monitoring, enhancing intelligent diagnostics and environmental sensing capabilities.

Keywords:
multimodal detectionplug-and-play detection systempolypeptoid–lanthanide nanohybridsratiometric fluorescent biosensingsupramolecular assembly

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Area of Science:

  • Materials Science
  • Analytical Chemistry
  • Biotechnology

Background:

  • Advancing intelligent diagnostics and environmental monitoring requires versatile and programmable sensing platforms.
  • Existing biosensors often face limitations in target diversity and field applicability.

Purpose of the Study:

  • To develop a plug-and-play, polypeptoid-based sensing platform for rapid and accurate detection of multiple analytes.
  • To demonstrate the platform's capability for both dipicolinic acid (DPA) and tetracycline (TC) detection, as well as bacterial spore monitoring.

Main Methods:

  • Integration of a polypeptoid-lanthanide ion ratiometric fluorescent probe with magnetic bacterial enrichment.
  • Utilizing the platform's structural programmability for functional adaptation.
  • Coupling the sensing platform with portable devices for real-time quantification.

Main Results:

  • Achieved over 90% capture efficiency in complex environments.
  • Demonstrated a low detection limit of 5.73 nM for DPA and 11.21 nM for TC.
  • Enabled real-time monitoring of bacterial spores from 10^1-10^8 CFU/mL with a 4.47 CFU/mL detection limit within 10 min.

Conclusions:

  • The developed platform offers a general strategy for constructing multifunctional diagnostic tools.
  • The system addresses key limitations of traditional biosensors, improving target diversity and field applicability.
  • The plug-and-play nature and programmability enhance its utility for intelligent diagnostics and environmental monitoring.