Plasmonic structural color-based sensors

Mahdi Soudi; Pablo Cencillo-Abad; Debashis Chanda

doi:10.1117/12.3004197

13 March 2024 Plasmonic structural color-based sensors

Mahdi Soudi, Pablo Cencillo-Abad, Debashis Chanda

Proceedings Volume PC12898, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVII; PC128980B (2024) https://doi.org/10.1117/12.3004197
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

Ammonia, a major water pollutant, enters aquatic environments from various sources, impacting aquatic life with toxic effects and promoting algae growth. Detecting dissolved ammonia is crucial due to health risks and harm to ecosystems. A nanoplasmonic colorimetric sensor was developed, utilizing metallic nanostructures to change color based on ammonia concentrations, providing a simple and affordable real-time analysis method. The sensor uses aluminum and aluminum oxide, avoiding toxic chemicals. A smartphone application was also developed as a robust protocol for quantifying ammonia in aqueous solutions, eliminating the need for optical instruments and facilitating on-site monitoring.

Conference Presentation

Citation Download Citation

Mahdi Soudi, Pablo Cencillo-Abad, and Debashis Chanda "Plasmonic structural color-based sensors", Proc. SPIE PC12898, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVII, PC128980B (13 March 2024); https://doi.org/10.1117/12.3004197

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