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Multicolor Fluorescence Detection for Droplet Microfluidics Using Optical Fibers
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Optical explosives detection: from color changes to fluorescence turn-on.

Meaghan E Germain1, Michael J Knapp

  • 1Department of Chemistry, University of Massachusetts-Amherst, Amherst, MA 01003, USA.

Chemical Society Reviews
|August 20, 2009
PubMed
Summary

This review covers optical and fluorescence sensors for detecting chemical explosives, highlighting advances in fluorescence turn-on strategies for sensitive, portable, and cost-effective applications.

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Area of Science:

  • Materials Chemistry
  • Forensic Science
  • Chemical Sensing

Background:

  • Explosive detection is vital for military and civilian safety.
  • Current research focuses on improving sensitivity, portability, and cost-effectiveness of explosive sensors.
  • Optical and fluorescence-based sensors offer promising solutions for portable detection.

Purpose of the Study:

  • To review chemical approaches for explosive sensing using optical detection methods.
  • To summarize recent advancements in fluorescence strategies for explosive detection.
  • To highlight the potential of fluorescence turn-on mechanisms.

Main Methods:

  • Discussion of chemical sensing principles for explosives.
  • Review of optical detection techniques.
  • Summary of fluorescence-based sensing strategies, including turn-on mechanisms.

Main Results:

  • Optical and fluorescence sensors demonstrate high sensitivity and portability for explosive detection.
  • Fluorescence turn-on strategies show significant promise for enhanced detection capabilities.
  • Integration of chemistry and engineering advances leads to improved sensing technologies.

Conclusions:

  • Optical and fluorescence-based sensors are key to developing advanced explosive detection systems.
  • Continued research in materials chemistry and fluorescence is crucial for practical applications.
  • The development of cheap and portable explosive sensors is an active and promising area.