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Smartphone-based Surface Plasmon Resonance Sensors: a Review.
Gaurav Pal Singh1, Neha Sardana1
1Department of Metallurgical and Materials Engineering, Indian Institute of Technology Ropar, Rupnagar, 140001 India.
Plasmonics (Norwell, Mass.)
|June 15, 2022
Summary
Smartphone-based surface plasmon resonance (SPR) sensors offer sensitive, label-free detection. These portable devices utilize smartphone components for economical on-site analysis of pollutants and biomarkers.
Area of Science:
- Physics
- Chemistry
- Biotechnology
Background:
- Surface Plasmon Resonance (SPR) is a label-free, highly sensitive detection method.
- SPR sensors detect changes in refractive index at a metal-dielectric interface.
- Conventional SPR systems can be bulky and expensive.
Purpose of the Study:
- To explore recent advancements in smartphone-based SPR sensors.
- To discuss the integration of smartphones into SPR sensing platforms.
- To highlight the potential for economical, on-site portable sensing.
Main Methods:
- Utilizing smartphone hardware (camera, screen, LED flashlight) as SPR sensor components.
- Investigating the principles of SPR phenomena for sensing applications.
- Analyzing signal processing techniques for smartphone-based SPR data.
Main Results:
- Demonstrated feasibility of using smartphones for SPR sensing.
- Highlighted the potential for cost-effective and portable SPR devices.
- Showcased applications in detecting water pollutants, toxins, and disease biomarkers.
Conclusions:
- Smartphone-based SPR sensors represent a significant advancement in accessible analytical technology.
- These integrated systems offer a promising avenue for real-time, on-site diagnostics and environmental monitoring.
- Further development can enhance the sensitivity, selectivity, and range of applications for these portable sensors.
