Surface Plasmon Resonance Biosensor for Sensitive Nanoplastic Detection

Sensitive Nanoplastics Detection by Surface Plasmon Resonance Spectroscopy

Plasmonic Detection of Microplastics and Microorganisms Using a Circular-Nanorod-Coupled MIM Sensor

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Researchers designed a compact plasmonic sensor based on a silver metal-insulator-metal waveguide coupled to an octagonal cavity embedded with circular nanorods, achieving dual resonance sensitivities of 1,321 and 2,198 nm/RIU that enable optical detection of microplastics and aquatic microorganisms through refractive index shifts.

Microfluidic platforms for detection and biological evaluation of micro- and nanoplastics

A Nile Red-assisted colorimetric and SERS dual-mode strategy for the rapid and highly sensitive detection of nanoplastics

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Scientists have developed a quick, dye-based test that can detect nanoplastics, plastic particles so small they're invisible to the eye, in water using either a simple color change or a more sensitive light-based scan. This matters because nanoplastics are increasingly found in our environment and bodies, but current detection methods require expensive lab equipment, making it hard to track this potential health threat; this new tool could someday enable easier, on-site monitoring of water safety.

Solar-Driven Plasmonic Nanoreactors for In-situ Monitoring of Microplastics in Aquatic Environments

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Researchers developed a solar-powered gold-silver plasmonic nanoreactor that simultaneously detects microplastics (polystyrene and PET) at parts-per-billion levels using SERS and degrades them through photocatalytic reactions, achieving a detection limit of ~85 ppb with under 7% variability. This dual-function approach offers a promising eco-friendly platform for real-time monitoring and remediation of microplastic contamination in aquatic environments.