Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Detection Methods Marine & Wildlife Remediation Sign in to save

Integration of bifunctional silver dendrite membranes with surface-enhanced Raman scattering for sensitive detection of polystyrene microplastics in aquatic environments

Journal of Hazardous Materials 2024 10 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 60 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Yongning Wu, Di Wu, Di Wu, Di Wu, Di Wu, Jianhua Wu, Xin Liu, Yongning Wu, Di Wu, Yuzhi Li, Jianhua Wu, Jianhua Wu, Di Wu, Di Wu, Xin Liu, Qiao Wang, Di Wu, Xin Liu, Xin Liu, Di Wu, Di Wu, Di Wu, Di Wu, Di Wu, Di Wu, Bolong Fang, Yongning Wu, Di Wu, Di Wu, Di Wu, Di Wu, Yongning Wu, Zhiyong Gong, Xin Liu, Di Wu, Qiao Wang, Di Wu, Di Wu, Di Wu, Qiao Wang, Yongning Wu, Zhiyong Gong Yongning Wu, Yongning Wu, Yongning Wu, Yongning Wu, Yongning Wu, Yongning Wu, Zhiyong Gong, Yongning Wu, Yongning Wu, Yongning Wu, Yongning Wu, Yongning Wu, Yongning Wu, Yongning Wu, Di Wu, Zhiyong Gong

Summary

Scientists created a new composite membrane made of silver dendrites on filter paper that can both capture and detect trace amounts of polystyrene microplastics in water. The method achieved detection at microgram-per-liter levels with recovery rates above 96% in real water samples. Better detection tools like this are important for accurately measuring the microplastic contamination levels in drinking water and aquatic environments that affect human health.

Polymers

Microplastics (MPs) are emerging environmental pollutants that are present in aquatic environments and accumulate within the food chain, posing significant threats to human health. Over 8 million tons of MPs enter these ecosystems annually. However, existing rapid qualitative and quantitative analytical methods for trace MPs are limited, hindering comprehensive research on their impact in water environments. This study presents a novel composite membrane with both adsorption and filtration functions, integrated with surface enhanced-Raman scattering technology for detecting trace MPs in water. The silver dendrites, modified with n-hexanethiol and loaded onto filter paper, facilitate enhanced enrichment and simultaneous sensitive detection of MPs. The composite membrane exhibited excellent retention rates for standard polystyrene (PS) MPs of various sizes (200, 500, and 1000 nm), achieving high enrichment efficiency. Sensitive detection was realized with a linear response in a concentration range of 0.01 to 0.5 g/L, yielding optimal enhancement factors exceeding 2.92 × 10, enabling detection at μg/L levels. Recovery rates for PS in spiked environmental water samples ranged from 96.86 % to 102.96 %. This innovative method offers a promising approach for the rapid and sensitive detection of trace MPs in aquatic environments, contributing significantly to the assessment of MPs pollution.

Read via DOI PubMed

Share this paper

Post Share Share Pin Email