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Related Experiment Video

Updated: Feb 19, 2026

Optical Trapping of Nanoparticles
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Optical Trapping of Nanoparticles

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Nanoparticle-based optical sensor arrays.

Arafeh Bigdeli1, Forough Ghasemi, Hamed Golmohammadi

  • 1Chemistry Department, Sharif University of Technology, Tehran 11155-9516, Iran. hormozi@sharif.edu.

Nanoscale
|October 31, 2017
PubMed
Summary

Nanoparticle-based optical sensor arrays offer real-time, sensitive detection of complex mixtures. This review details their design, principles, and applications, highlighting nanoparticle properties for advanced chemical sensing.

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Area of Science:

  • Analytical Chemistry
  • Materials Science
  • Nanotechnology

Background:

  • Nanoparticles (NPs) have significantly advanced chemical nose/tongue sensing strategies.
  • The tunable physicochemical and unique optical properties of NPs are ideal for array-based sensing platforms.
  • NP integration enables real-time, sensitive, and portable systems for analyzing complex analyte mixtures.

Purpose of the Study:

  • To review the design principles and processes of common nanoparticle-based optical sensor arrays.
  • To categorize optical signals (colorimetric and fluorometric) based on absorption and emission changes.
  • To introduce chemometric methods for data analysis in NP-based sensor arrays.

Main Methods:

  • Discussion of fundamental steps in sensor array design, emphasizing cross-reactivity.

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  • Categorization of optical signals based on changes in absorption and emission properties.
  • Review of popular chemometric methods for data analysis.

    • Main Results:

    • Nanoparticle-based optical sensor arrays leverage unique opto-physical properties of plasmonic and fluorescent NPs.
    • Sensor arrays are reviewed based on interaction mechanisms and optical signal types.
    • Applications span various fields, showcasing the versatility of NP-based optical sensing.

    Conclusions:

    • Nanoparticle-based optical sensor arrays represent a powerful tool for sensitive and selective chemical detection.
    • Further research is needed to address remaining challenges and explore future directions in the field.
    • The review provides a comprehensive overview for researchers designing and applying these advanced sensing systems.