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Updated: Jun 10, 2026
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Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment
Published on: April 4, 2017
Trapping and Detecting Nanoplastics Using Metal-Phenolic Networks-Functionalized Membranes with SERS.
Haoming Yang1, Matthew Kowal2, Zhiyun Liu1
1Food, Nutrition and Health, Faculty of Land and Food Systems, The University of British Columbia, Vancouver V6T1Z4, Canada.
Environmental Science & Technology
|June 9, 2026
Summary
This study introduces a new method using metal-phenolic networks (MPNs) and SERS for fast, sensitive detection of nanoplastics. The technique efficiently traps and detects polystyrene nanoplastics (PSNPs) in water samples.
Area of Science:
- Environmental Science
- Analytical Chemistry
- Materials Science
Background:
- Plastic pollution, particularly nanoplastics, poses significant environmental and health risks.
- Conventional nanoplastic detection methods lack sensitivity, are costly, and labor-intensive.
Purpose of the Study:
- To develop a novel, cost-effective, and sensitive method for trapping and detecting nanoplastics.
- To utilize metal-phenolic networks (MPNs) functionalized membranes with surface-enhanced Raman spectroscopy (SERS).
Main Methods:
- Fabrication of MPNs-functionalized nitrocellulose membranes.
- Trapping of various sizes of polystyrene nanoplastics (PSNPs).
- Detection of PSNPs using SERS.
Main Results:
- Achieved >90% trapping efficiency for PSNPs (1 μm, 500 nm, 50 nm).
- Enabled sensitive SERS detection of 50 nm PSNPs down to 0.1 mg/L.
- Demonstrated a strong linear correlation between PSNP concentration and SERS intensity.
- Reported >90% recovery rate for 50 nm PSNPs in tap water samples.
Conclusions:
- The MPNs-functionalized membrane coupled with SERS is a promising platform for nanoplastic detection.
- This method offers advantages in cost, user-friendliness, and practicality for environmental monitoring.
- The approach facilitates effective trapping and sensitive on-site detection of nanoplastics.
