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Updated: Jul 23, 2025

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Plasmonic Nanomaterials in Dark Field Sensing Systems.

Wenjia Zhang1,2, Xingyu Zi3,4, Jinqiang Bi1,2,5

  • 1Tianjin Research Institute of Water Transport Engineering, M.O.T., Tianjin 300456, China.

Nanomaterials (Basel, Switzerland)
|July 14, 2023
PubMed
Summary

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Plasmonic nanoparticles, utilizing local surface plasmon resonance (LSPR), are key for advanced sensing and data storage. Enhancing LSPR performance through composite materials improves applications in process analysis and quantitative detection.

Area of Science:

  • Nanotechnology and Materials Science
  • Plasmonics and Photonics
  • Chemical and Biosensing

Background:

  • Plasmonic nanoparticles exhibit unique optical properties driven by local surface plasmon resonance (LSPR).
  • These nanoparticles are crucial for applications in data storage, biosensing, optical imaging, and photoelectric integration.
  • Understanding LSPR excitation is vital for controlling sensing mechanisms.

Purpose of the Study:

  • To review the LSPR excitation mechanism in plasmonic nanoprobes.
  • To explore sensing strategies based on plasmonic nanomaterials.
  • To discuss materials and applications of plasmonic nanoprobes.

Main Methods:

  • Highlighting the LSPR excitation mechanism of plasmonic nanoprobes.
  • Describing sensing strategies: dielectric environment modification, electromagnetic coupling, and charge transfer.
Keywords:
dark-field microscopy (DFM)local surface plasmon resonance (LSPR)plasmonic nanoparticlesquantitative detection

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  • Reviewing component materials (gold, silver, noble metals) and their applications.

    • Main Results:

    • Composite plasmonic nanomaterials enhance LSPR performance.
    • Combining noble metals with other metals or oxides is a key strategy.
    • Improved nanoprobes are effective in process analysis and quantitative detection.

    Conclusions:

    • Plasmonic nanoprobes offer significant potential in various technological fields.
    • Composite materials are crucial for optimizing LSPR performance.
    • Advanced plasmonic nanoprobes enable sophisticated analytical applications.