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Related Experiment Video

Updated: Nov 10, 2025

Trapping of Micro Particles in Nanoplasmonic Optical Lattice
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Plasmonic Layer as a Localized Temperature Control Element for Surface Plasmonic Resonance-Based Sensors.

Sivaramakrishnan Ganesan1, Sophie Maricot1, Jean-Francois Robillard1

  • 1Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, Junia, UMR 8520-IEMN, F-59000 Lille, France.

Sensors (Basel, Switzerland)
|April 3, 2021
PubMed
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This study introduces a novel method for precise temperature control in Surface Plasmon Resonance (SPR) sensing by using the SPR sensor

Area of Science:

  • Biophysics
  • Analytical Chemistry
  • Materials Science

Background:

  • Surface Plasmon Resonance (SPR) sensing is a key technique for label-free biomolecular interaction studies.
  • Accurate temperature control is crucial in SPR sensing as refractive index is temperature-dependent.
  • Current methods for temperature control can be slow or imprecise for localized SPR measurements.

Purpose of the Study:

  • To develop a localized, rapid, and precise temperature control system for SPR sensing.
  • To utilize the SPR sensor's metallic film as an integrated heater.
  • To validate the effectiveness of this integrated heating approach.

Main Methods:

  • Proposed using the metallic film of the SPR sensor as a localized heater based on Joule heating.
Keywords:
localized heatingplasmonic sensorsurface plasmon resonancetemperature control

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  • Developed a model for the localized heater.
  • Validated the heating model using thermal infrared imaging.
  • Conducted SPR measurements with water as a test medium at varying temperatures.

    • Main Results:

    • Successfully modeled the localized heating of the SPR sensor's metallic film.
    • Validated the heating model using thermal infrared imaging.
    • Demonstrated accurate SPR measurements correlating with theoretical refractive index changes of water across different temperatures.

    Conclusions:

    • The metallic film of an SPR sensor can effectively function as a localized heater for precise temperature control.
    • This integrated approach offers rapid and fine-tuned temperature regulation for SPR sensing.
    • The method holds promise for enhancing the accuracy and reliability of biomolecular interaction studies using SPR.