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Dual-Mode Electro-Optical Techniques for Biosensing Applications: A Review.

José Juan-Colás^1,2, Steven Johnson³, Thomas F Krauss⁴

¹Department of Physics, University of York, York YO10 5DD, UK. jose.juancolas@york.ac.uk.

Sensors (Basel, Switzerland)

|September 8, 2017

Summary

This study compares electro-optical biosensing methods, including EC-SPR, EC-OWLS, and silicon electrophotonics, for label-free biomolecular interaction monitoring. These techniques offer enhanced accuracy and parallel data for biological process studies and disease diagnosis.

Keywords:

electro-optical devices label-free detection optical biosensors

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Area of Science:

Biomedical Engineering
Analytical Chemistry
Biophysics

Background:

Monitoring biomolecular interactions is crucial for understanding biological processes and diagnosing diseases.
Label-free, real-time technologies provide valuable insights into molecular interactions.
Combining optical and electrochemical information enhances measurement accuracy and detail.

Purpose of the Study:

To compare main electro-optical biosensing methods.
To evaluate their suitability for detecting low concentrations of biomolecules.
To assess their potential for tailored light-matter interaction and 2D biointeraction imaging.

Main Methods:

Comparison of electrochemical surface plasmon resonance (EC-SPR).
Comparison of electrochemical optical waveguide lightmode spectroscopy (EC-OWLS).
Evaluation of a silicon-based electrophotonic approach.

Main Results:

Electro-optical techniques provide parallel information on multiple parameters of biomolecular processes.
These methods offer unique insights into molecular structure and function.
The study considers applications in low-concentration detection, integration, and 2D imaging.

Conclusions:

Electro-optical biosensing offers advanced capabilities for studying biomolecular interactions.
The compared methods show promise for improved accuracy and detailed analysis in various applications.
Further development in this field can advance biological research and clinical diagnostics.