Rapid, Sensitive, and Non-Destructive On-Site Quantitative Detection of Nanoplastics in Aquatic Environments Using Laser-Backscattered Fiber-Embedded Optofluidic Chip

Rapid, sensitive, and non-destructive on-site quantitative detection of nanoplastics in aquatic environments using laser-backscattered fiber-embedded optofluidic chip

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Researchers built a laser-backscattered optofluidic chip that rapidly and non-destructively detects and quantifies multiple nanoplastic polymer types in aquatic samples down to 0.23 µg/mL, validated across real-world water environments with high reproducibility.

Capturing, enriching and detecting nanoplastics in water based on optical manipulation, surface-enhanced Raman scattering and microfluidics

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Scientists built an optical manipulation and surface-enhanced Raman scattering system using gold nanoparticle stacks to simultaneously capture, enrich, and detect nanoplastics in natural water at concentrations as low as 150 ng/L for polystyrene, successfully quantifying nanoplastics across river, mariculture, and beach water samples. The technique fills a critical measurement gap for nanoplastics, enabling reliable concentration monitoring in environments where these particles are otherwise nearly impossible to detect and quantify.

Nanotechnology-enabled analytical tools for Microplastics and nanoplastics in aquatic ecosystems

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Tiny plastic particles in our water, some smaller than a virus, have been hard to detect with older lab tools, making it tough to know how much is really out there or how it might affect us. This review rounds up new nanotech-based detection methods (using gold nanoparticles, light-scattering sensors, and AI) that can spot these nanoplastics at incredibly low levels, faster and with less environmental impact than traditional testing. Better detection tools like these are a key first step toward understanding plastic pollution's health risks and building policies to protect our water supplies.

A New Approach for Detecting and Quantifying Microplastics and Nanoplastics in Water Using Fluorescence Labeling and Nanoparticle Tracking Analysis

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Researchers paired the fluorescent dye Cy5 with nanoparticle tracking analysis to detect and size micro- and nanoplastics in water, tracking Brownian motion trajectories to calculate hydrodynamic parameters with higher selectivity and sensitivity than conventional microscopy or spectroscopy methods.

Rapid and low-cost detection platform for micro- and nanoplastics